Speaking at JP_Stripes Connect 2026 — The Reality of Building and Billing AI Products, in Yokohama

On August 1, 2026, I attended JP_Stripes Connect 2026 in person at Iwasaki Gakuen Information Technology College in Yokohama, and spoke at the track session 'The Reality of Building and Billing AI Products.' This post summarizes the topics I covered (building AI products in production, and designing token-based and usage-based billing on Stripe), along with the full list of URLs I referenced on stage.

Paused My OSS Individual Sponsorships

I paused my OSS individual sponsorships. The 2026 Kumamoto earthquake made me reallocate my personal resources from OSS to my hometown of Kumamoto. I plan to restart around 2027.

Managing Large Binaries on GitHub — Git LFS and Its Alternatives Compared at 10 GB, 100 GB, and 1000 GB

Model files, game assets, build artifacts. The size of binaries you want to keep next to source code tends to grow by an order of magnitude at a time: 10 GB, then 100 GB, then 1 TB. Git LFS is perfectly viable at 10 GB, starts to break down past 100 GB, and by 1 TB an object-storage bridge is essentially mandatory. This post lines the options up against July 2026 pricing and shows where each scale changes the winner.

Hand It an Issue, Get Back a PR — A Hermes Agent Skill Looping Between Codex and Claude Code

When agents write the code, the highest-value human work is neither writing nor reviewing it. It is building the foundation the loop runs on, and planning the issue. Shipping this skill made that conclusion concrete.

Reviewing a PR with Claude Code and Codex at Once — Automating Multi-Model Review as a Hermes Agent Skill

A code review from a single model inherits that model's blind spots wholesale. So have independent models read the same diff, and trust the findings where they overlap. Here is how that workflow became a single command.

15 Checks Non-Developers Should Keep in Mind Before Shipping AI-Written Code to Production

AI coding tools produce working code at astonishing speed. Working, however, is not the same as production-grade. Here are fifteen concrete things to look at before you ship what your AI wrote.

Pick Your Coding-Agent Model by Opportunity Cost — Why I Run Fable 5 Low and Codex 5.6 Sol Light for Speed

Lately I've deliberately defaulted to light, fast settings: Fable 5 at the Low reasoning level in Claude Code, and 5.6 Sol at the Light reasoning level and the Fast speed level in Codex. Today's high-intelligence models fail with the same shape of mistakes whether you spend a lot of reasoning tokens or a few. If the failure mode is the same, review effort doesn't change, and what matters isn't token cost but wait time, which is opportunity cost. Hard to see, but its dominance is obvious once you accept that humans are the bottleneck.

Is Gemini CLI Still Open Source — Reading the Apache 2.0 Code and the Backend Terms as Two Layers, and the Adoption Risk After the Antigravity CLI Transition

Google announced the transition from Gemini CLI to the closed-source Antigravity CLI and cut off free, individual access on 2026-06-18. Yet the Gemini CLI code itself stays Apache 2.0 and the repository keeps shipping releases. Whether to adopt it becomes clear once you read it as two layers: the code license and the backend service terms. This article lays out what happened, the irrevocability of Apache 2.0, the mutability of the service terms, the governance reality, the technical incompatibilities of migration, and the alternatives and defenses, as of 2026.

macOS Keychain Error -25294 (errSecNoSuchKeychain) — Fixed by Importing the Certificate into login

You try to import a certificate into your keychain and get error -25294, which blocks the import. errSecNoSuchKeychain, meaning 'the specified keychain could not be found,' almost always points not at the certificate itself but at the destination keychain. Based on a case where switching the import target from Local Items to login fixed it, here is the cause and the shortest path to a fix.

Developer Experience in the AI Era — Helping Engineers Stay Competitive

While teaching a Claude workshop, an engineer in the room asked me: how do you think about improving Developer Experience (DevEx) in the AI era? I answered on the spot. This post revisits that as a fully remote CTO. What DevEx used to mean, what AI changed, how leadership provides the environment. The goal: growing engineers who stay competitive in the market, the kind people call excellent even after they move on.

Stop Asking Humans for Status Updates — In the AI Era, People Should Only Report the Future

Past and present progress is already etched into artifacts, commits, PRs, CI, and observability, and an AI agent can summarize it on demand. If so, there's little point in having humans re-report their progress. The information only humans hold lives on the side of the future, in intent no artifact has captured yet. From the seat of a CTO running a fully remote organization, I take apart the status-update ritual and redesign meetings and reviews around the future.

A Tour of Anthropic's 17 Official Skills — What the anthropics/skills Repo Can Do

Anthropic's official Agent Skills repository, anthropics/skills, ships 17 skills as of July 2026. From docx, pdf, pptx, and xlsx office-file manipulation to design skills like algorithmic-art and frontend-design, to developer tooling like mcp-builder and skill-creator, this article summarizes each SKILL.md across five categories.

Troubleshooting Hermes Agent When It Runs Out of Context — Discard the Half-Done Work and Restart Clean

You're having Hermes Agent create a PR and it stalls with 'Context length exceeded. Cannot compress further.', and /compress does nothing. As a Hermes Agent troubleshooting tip, this post shows how to discard the half-done changes and restart clean from your committed progress to finish the PR and close the issue.

Cutting CI Costs in AI-Driven Solo Development with gh-signoff — Local CI and the Signoff Model

Hand implementation to a coding agent and your push count explodes, quietly inflating the remote CI bill. gh-signoff offers a blunt but sensible answer: run the tests on your own machine and sign off on them yourself.

Sending and Receiving Email on an xxx.onmicrosoft.com Address — How Licenses and Mailboxes Fit Together

Create a Microsoft 365 tenant and you get an address like `user@contoso.onmicrosoft.com` automatically, yet when you try to send or receive on it, mail may not even arrive. The reason is that the Entra ID account you sign in with and the Exchange Online mailbox that stores mail are two separate things. This post walks through why it doesn't work by default, which license to buy and assign, and the outbound sending cap that starts biting onmicrosoft.com senders in 2026, following the actual admin steps.

Obtaining OV/EV Code Signing Certificates from Japan — Eligibility for Companies, Sole Proprietors, and Individuals, with 2026 Pricing

Before "how much does a code signing certificate cost," you have to settle "can I even obtain one." A Japanese company can get one from almost any CA and pick on price, but an individual developer with no registered business is generally not issued one by major CAs, and Microsoft's own cloud signing service excludes Japan geographically. This post leads with eligibility by applicant type and region, then prices, to map out which certificate a Japanese company or a Japan-resident individual can actually obtain in 2026.

Distributing a Windows Desktop App Safely from Japan — Code Signing and the SmartScreen Reality (2026)

"I want to distribute a Windows app, but I don't want security software to block it." For a Japanese company, the shortest path to meeting that requirement collapses to roughly two options: ship MSIX through the Microsoft Store, or sign an installer with a CA-issued code-signing certificate and serve it from your own site. But on Windows since 2024, buying an EV certificate no longer buys an instant SmartScreen bypass, and Microsoft's cheap cloud signing service, Azure Trusted Signing, excludes Japanese organizations. We assemble the 2026 realistic path end to end, from certificate selection through signing, distribution, and SmartScreen reputation operations.

Replacing Checkmarx with Open Source — Designing an AppSec Stack from SAST, SCA, IaC, and Secrets

No single open-source tool replaces Checkmarx one to one. The realistic answer is a loosely coupled multi-engine setup: place a dedicated OSS scanner in each functional category and bind them with a management layer like DefectDojo. This article walks through the Semgrep CE versus Opengrep split in SAST, Trivy-centered SCA, Checkov and KICS for IaC, Gitleaks and TruffleHog for secrets, and DefectDojo's deduplication and Jira sync, as of 2026, along with the limits such as legacy languages and supply-chain risk.

Comparing Open-Source DAST Tools — Binding ZAP, Nuclei, Wapiti, and Nikto into a DevSecOps Pipeline

DAST (dynamic application security testing) hits a running app from the outside with simulated attacks to surface runtime-specific vulnerabilities that SAST and SCA miss. Open-source DAST has moved from 'one tool does everything' to 'divide the work among lightweight tools.' Centered on the all-around ZAP, template-driven Nuclei, lightweight-CLI Wapiti, and server-exposure-focused Nikto, this article adds the SQLi specialist sqlmap and the XSS specialist Dalfox, plus the free-but-not-OSS Dastardly and StackHawk, and lays out 2026 selection criteria alongside SPA/API coverage, phased CI/CD integration, and false-positive tuning.

Keyless-Signing CLI Artifacts with Sigstore cosign — GitHub Actions OIDC, Bundle Verification, and a Tamper Test

The weakness of out-of-band distribution is that nobody can confirm the artifact they received actually came from that org's workflow and was not modified along the way. Sigstore cosign keyless signing lets you sign artifacts with a GitHub Actions OIDC identity, holding no long-lived signing key. Fulcio issues a short-lived certificate and the signing event lands in a transparency log. By pinning the certificate identity and OIDC issuer, verifiers can confirm that this repository's workflow signed it. We assemble a recipe end to end that signs both the npm .tgz and the Google Drive zip, with a tamper test wired into CI so verification provably fails on modified bytes.

Hardening npm Publishing with Trusted Publishing — Tokenless OIDC, Staged Publishing, and PR-Merge Releases

After the 2025-2026 npm supply-chain attacks, publishing with a long-lived token is no longer the default. Authenticate with GitHub Actions OIDC Trusted Publishing so there is no publish secret, make CI capable of only staging a package, and keep live promotion as a separate npm MFA step. Restrict the release Environment to the PR merge ref, and automate even the release PR itself. The result is a multi-boundary defense where repository write access alone cannot produce a live npm package.

Distribute an npm CLI Privately via Cloud Storage — A Self-Contained Zip Recipe with Google Drive

A registry is overkill, but handing over the source feels wrong. In that gap sits a humble option: pack your npm CLI into a single self-contained zip and share it through a Google Drive link. Bundle the npm tarball with an INSTALL.md, share it via link or email restriction, and let a human fetch it from a browser and install it. Assembled here as a recipe that actually runs.

Comparing LLM API Gateways — The Traps in Markup, Billing, Regions, and Training-Data Use

Bundling multiple LLM APIs (OpenAI, Anthropic, Google) behind one endpoint has become a standard component of any generative-AI app. Using Vercel AI Gateway as the reference point, this post compares OpenRouter, Cloudflare, Helicone, Portkey, and LiteLLM, plus Bedrock, Azure, and Vertex AI, along four axes: markup, billing model, region, and training-data use. The shared trap: zero markup does not mean zero cost.

Surveying Services That Serve OSS Model APIs in a Japan Region — Comparing Them on Data Residency and Coding-Agent Practicality

Terminal-resident coding agents are now everyday tools, and provider-agnostic tools like OpenCode have spread widely. OpenCode Go is an attractive bundle that wraps OSS models for $10/month, but its regions are limited to the US, EU, and Singapore, with no Japan region. From both data residency and latency angles, this post reconciles inconsistent primary sources to map out the services that can serve OSS model APIs inside Japan.

Why Narcissistic Leaders Resist Remote Work — A Reflection from Running a Fully Remote Organization

A Wharton team has published evidence that the more narcissistic a leader is, the more they resist remote work. The reason isn't productivity or culture, but the loss of the power and status that in-person work supplies. From the seat of an executive and CTO running a fully remote organization, I reflect on this uncomfortable finding a step removed: auditing your own motives, the hidden costs of return-to-office mandates, and remote work as a governance mechanism.

Attended AI Requirement Definition Summit 2026

I took part in AI Requirement Definition Summit 2026, an event hosted by my own company, on the organizing side rather than as an attendee. I had little time to sit in on sessions; the day was devoted to greeting exhibitors at their booths and welcoming our customers.

Attended Code w/ Claude Extended in Tokyo

Code w/ Claude Extended, a global series of developer events centered on Claude, came to Tokyo. I was able to attend the keynote by Boris Cherny and a tour of Anthropic's office, but had to leave before the afternoon sessions due to hosting another event. Even in that short time, the conversations I had with the team and the questions raised in the keynote shifted how I think about AI-driven development in practice.

From Policy Documents to Closing the Gate — How Ladybird, codex, and tldraw Stopped Accepting External PRs in 2026

The previous post organized how projects rewrote their contribution policies into three types. This sequel covers the 2026 cases that closed the PR gate itself rather than the policy document: Ladybird's complete halt of public PRs, openai/codex's collaborators-only model, tldraw's auto-close of external PRs, Ghostty's Vouch, curl's bug bounty removal, Jazzband's dissolution, the 19,000-line AI PR debate in Node.js, and GitHub's platform response, all read against the supply-chain security context that begins with the xz utils incident.

The tomtoc Slim Sleeve Our IT Team Recommended Turned Out Great — Picking a Travel Laptop Case by How You Carry

I did not have the energy to compare laptop sleeves one by one for my new work machine. So I asked our corporate IT team, and they recommended tomtoc. For my use, carrying it in a backpack, the slim, lightweight model was plenty. I bought it, and it turned out thin, light, and a perfect slip-in for my travel backpack. Here is the 'choose by how you carry' reasoning they walked me through.

Full Remote Work Isn't for Everyone — Reading the 'Home Alone' Isolation Study from Both Sides of the Household

Full remote work is comfortable. But what if a mental-health cost is quietly accumulating behind that comfort? The new Science study 'Home alone' shows, with data from nearly 590,000 workers, that working from home increases isolation and worsens mental health, and that the harm concentrates among people who live alone. I have lived through full remote work both alone and in a household of five. Here I read the study's data against both versions of my life.

Stopping Surprise Overage Bills on Supabase — Setting Up Spend Cap to Hand Databases to Vibe Coders Safely

You want to hand a Supabase database to non-developers, but you do not want a surprise pay-as-you-go bill when they blow past quota. Does Supabase have a setting that does not charge for overages? The short answer: the Free plan and the Pro plan's Spend Cap can pin your cost to a flat rate. Here is how it works, what it does and does not protect, the add-on loopholes, read-only mode behavior, and a safe configuration.

Separating Cloudflare Accounts and Billing per Customer — Why Gmail Aliases Get Rejected and How to Mint Real Addresses with Google Workspace Aliases or Groups

You want a separate Cloudflare account per customer so billing is separated. Trying to mass-produce accounts with Gmail +alias fails with 'A variation of this email address is already taken.' Creating another account needs a real, distinct email per account. Here is why, and how to mint those addresses with Google Workspace aliases or Groups.

Self-Hosting libSQL — A Reproducible Docker Compose Demo for Primary/Replica Replication and JWT Auth

I built a demo that reproduces, from a fresh clone, what you actually hit when self-hosting libSQL. It stands up a primary and a replica with Docker Compose, authenticates with Ed25519 JWTs, creates namespaces via the Admin API, and reads and writes from a TypeScript CLI. Here is what re-verifying against the current libsql-server turned up.

Opening a Folder Can Run Malware — A Safe Demo of Developer-Targeted Attacks Disguised as Job Recruiting via VS Code folderOpen and npm Lifecycle Scripts

Attacks that lure developers into running malware-laden repositories under the guise of recruiting or coding tests are on the rise. The steps you take right after git clone (opening the folder in an editor, running npm install) can themselves be the code-execution trigger. I built a demo repository to reproduce that safely on localhost, and here are the design decisions and defenses worth taking away.

Real Wages Turned Positive, But a Salary Freeze Is Still a Pay Cut — Inflation, AI, and Engineer Job Changes in Japan (May 2026)

At the end of 2025, I wrote that wages weren't keeping up with prices. Six months later, the picture has quietly shifted: real wages have finally turned positive. But 'the average is positive' and 'you are positive' are two different things. If your salary is frozen, it is still an effective pay cut. Using the latest government statistics and a domestic survey, we read three converging trends (wages versus prices, AI and employment, and the engineer job market) as close to the primary sources as possible.

Shipping an npm CLI Tool Securely to a Specific Customer — Designing the Build, Sign, and Deliver Pipeline

You want a privately developed npm CLI tool used only inside one customer enterprise, never on the public npm registry. It looks like plain packaging, but in practice you must satisfy three things at once: passing the OS security gates (Gatekeeper and SmartScreen), tamper-evident signing, and a distribution network you can control and audit per customer. Targeting macOS and Windows now with Linux ahead, this post designs build, signing, distribution, and supply-chain hardening as a single pipeline.

Can't Sign In to a Local Account on an Entra ID-Joined PC — Fix It by Prefixing the Username with ".\"

I set up a loaner Windows 11 PC with Entra ID Join and created a local account, user01, for the trainee. When I tried to sign in as user01, the password was correct but it would not log in. Here is the cause, and why prefixing the username with '.\' fixes it in one step.

Set Up a New Laptop the Day It Arrives — What HP's 7-Day Dead-on-Arrival Rule Taught Me

A new laptop arrived defective, but I was slow to notice and nearly missed HP's 7-day dead-on-arrival window. The conclusion is simple: set up and test a new laptop the day it arrives.

Initial Setup for Vercel AI Gateway API Keys — Avoiding AI Bankruptcy with Spend Quota and Auto-reload

A minimal setup checklist for your first Vercel AI Gateway API keys. Keep Auto-reload off at first, issue one key per environment, mark production and preview as Sensitive in Vercel env, and use Spend Quota with a Daily refresh. This is the floor for avoiding AI bankruptcy.

"That's an Echo Chamber" — Self-Diagnosing Myself After Going All-In on AI-Driven Development

I told an engineer at another company that I had gone all-in on AI-driven development, and they answered, "That's an echo chamber." What is an echo chamber, really? Why are you prone to one when you build and work with full-on AI, and how does fully remote work amplify it? Starting from C. Thi Nguyen's distinction between echo chambers and epistemic bubbles, I self-diagnose as an individual.

TSKaigi 2026 Individual Sponsor & Participation Report

I participated in TSKaigi 2026 as an individual sponsor and on-site attendee, flying in from Kumamoto. This article reports on session summaries and insights gained from the event.

Letting AI Agents Use the Azure CLI Safely — A Defense-in-Depth Design with Managed Identity, a Command Broker, and Resource Locks

Hand an AI agent a shell and Azure credentials at the same time, and a single prompt injection can turn into a stray az command that deletes resources or exfiltrates secrets. Short-lived credentials and least privilege, as Microsoft recommends, is the right direction. But a service principal's client secret is highly persistent once leaked, and tool-side deny rules do not survive adversarial evasion. Working from the premise that the only trustworthy enforcement boundaries are RBAC, organization policy, and OS sandboxes, we layer defenses across authentication, authorization, execution, approval, and audit so that seizing a single input never reaches production.

Letting AI Agents Use the Google Cloud CLI Safely — Drop the Keys, Lock It Down with Impersonation and a Command Broker

Hand an AI agent a shell and Google Cloud credentials at the same time, and a single prompt injection can turn into a misfired gcloud command that escalates privileges or exfiltrates data. Short-lived credentials and least privilege, which is Google's official guidance, are the right direction. But service account keys persist dangerously when leaked, and tool-side deny rules do not survive adversarial evasion. Working from the premise that the only trustworthy enforcement boundaries are IAM, organization policy, and OS sandboxes, we layer defenses across authentication, authorization, execution, approval, and audit so that seizing a single input never reaches production.

Letting AI Agents Use the AWS CLI Safely — A 2026 Defense-in-Depth Design That Disarms Any Single Credential

Hand an AI agent a shell and AWS credentials at the same time, and a single prompt injection can translate straight into deleted cloud resources or exfiltrated secrets. IAM Identity Center plus ReadOnlyAccess is the right starting direction. But ReadOnlyAccess is not 'read-only equals safe,' and tool-side deny rules do not survive adversarial evasion. Working from the premise that the only trustworthy enforcement boundaries are IAM and OS sandboxes, we layer defenses across authentication, authorization, execution, approval, and audit so that seizing a repository or a shell alone never reaches production.

The Only Thing a Manager Asks of Engineers — Just Leave the Context in the GitHub Repo, AI Will Handle the Summary

Looking at internal Discussions with my manager hat on, I often struggle to extract 'what is this product actually going to do' quickly. This isn't a writing-skill problem on the engineering side, it's a structural mismatch in the granularity that writers and readers need. This post is the manager-side ask to my team: just leave the context in the GitHub repo, flow or stock, in either form, and let me absorb the manager-facing summary with AI.

Became a GitHub Sponsor of aquaproj — Supporting the aqua-registry Maintainers Behind My Beloved mise

I became a GitHub Sponsor of aquaproj. An announcement from the aquaproj team reminded me that the mise toolchain I use every day stands on top of aqua-registry, so I wanted to support the maintainers behind it on an ongoing basis.

How OSS Contribution Policies Changed in Response to AI Slop — curl, Ghostty, tldraw, and the Wider Field

Coding agents flipped the review economy: seconds to generate, hours to debunk. Between late 2024 and mid-2026, curl, Ghostty, tldraw, the Linux kernel, LLVM, NetBSD, Fedora, WordPress, NewPipe, typescript-eslint, llama.cpp, Jazzband, and many more projects rewrote their contribution policies in response. This post walks the primary sources and groups the responses into three policy families: outright bans, human-in-the-loop, and structural closure.

Shipping PCs With Yamato? Split Them Into Separate Parcels — Working Backward From the ¥300,000 Liability Cap

In a fully remote company, you ship PCs by courier all the time. When I send PCs with Yamato Transport, I deliberately split them into separate parcels even when they would fit in a single box. The reasons are the per-parcel liability cap and the risk of damage. Here is how I think about shipping PCs, working backward from that ¥300,000 limit.

A 2026 Audit of Famous Electron Apps — Why VS Code, Slack, and Claude Desktop Stick With It and What's Quietly Leaving

Electron in 2026 still powers Visual Studio Code, Slack, Discord, Notion, 1Password 8, Signal Desktop, ChatGPT for Windows, the newly arrived OpenAI Codex Desktop, and Claude Desktop, while Microsoft Teams, WhatsApp Desktop, and Zed have moved off it. Working from public engineering blogs and repository inspection, this post maps the famous Electron adopters, untangles common mis-identifications, and lays out the optimization patterns that define the 2026 picture.

Picking a TypeScript OSS E-Commerce Platform in 2026 — Medusa v2, Vendure v3, and Where EverShop Fits

After several years of headless and composable consolidation, the realistic shortlist for TypeScript-native OSS e-commerce platforms in 2026 has collapsed to Medusa v2 and Vendure v3, with EverShop as a lightweight integrated alternative. Saleor (Python core) and Next.js Commerce (storefront framework without an EC API) sit outside the TypeScript-native scope used here; Reaction Commerce is discontinued. This post compares the three on license, architecture, and AI / Agentic Commerce readiness, then maps the choices to use cases.

Migrating the Next.js + Turso on Vercel Demo to @tursodatabase/* Packages — Leaving the Legacy @libsql/client Behind with Three-Mode Driver Selection

I migrated my earlier Next.js + Turso + Vercel demo from the now-legacy @libsql/client to the new @tursodatabase/* package family. This post walks through env-driven remote / local / sync driver selection, why I split syncTurso() into syncBefore() and syncAfter(), how I adopted Drizzle ORM 1.0.0-rc.1 and the new tursodatabase/database adapter, and the Next.js serverExternalPackages setting I needed to make Vercel happy.

Building a Next.js + Turso on Vercel Demo App with @libsql/client — From the Official Guide to Migrating to Drizzle ORM

I built a small todo demo app with Next.js App Router, Turso (libSQL), and Vercel. The first iteration calls @libsql/client directly, and the second one swaps the data layer for Drizzle ORM. The post covers the local-vs-prod difference around embedded replicas, why I split the work into two PRs, and how I pinned versions for reproducibility.

Picking an OSS Alternative After LocalStack Was Archived — A Comparison of MiniStack, Floci, kumo, fakecloud, and moto

LocalStack's OSS repository was archived and the Community Edition image was rolled into an auth-required unified image, leaving many teams who had built their CI/CD and docker-compose flows around it scrambling for a replacement. This post lines up the newcomers (MiniStack, Floci, kumo, fakecloud) and the durable test-side tools (moto, ElasticMQ, S3Mock, DynamoDB Local), compares them on license, service coverage, and migration cost, and maps each candidate to a workload.

The Vercel Breach Started with a Roblox Cheat Search — Personal and Corporate Defenses Against Lumma Stealer

The Vercel breach began with a Context.ai employee searching for Roblox cheats and getting infected with Lumma Stealer. OAuth tokens for Google Workspace leaked, and an over-privileged third-party SaaS integration carried the attacker all the way into Vercel. This post lays out what individuals should be careful about and what organizations can actually do.

The AI Era Is a Great Time to Learn - 15 Years Since I Was a Fledgling Engineer

"What should I learn in the AI era?" "How do I grow as an engineer?" At TechLead Conference 2026, I heard those anxieties often. Fifteen years after asking basic MySQL questions at Python mini Hack-a-thon, and with AI now available to answer anything on demand, I believe this is the best era yet for beginners.

Spoke at TechLead Conference 2026 powered by connpass

I spoke at "TechLead Conference 2026 powered by connpass" on "Tackling Technical Debt in the AI Era." Starting from two questions ("Whose debt is this, really?" and "Do we actually need to pay it down?"), I shared practical lessons on how technical debt should be reframed when AI coding agents sit at the center of implementation.

Tavily Alternatives Compared — Cost-Optimizing Search and Extraction APIs for AI Agents

AI agents now run dozens or hundreds of web lookups per task, and Tavily's credit-based pricing has become a real cost driver. This post compares the major Tavily alternatives (Firecrawl, Brave Search, Exa, Serper, Jina Reader, SearXNG) on price, features, migration effort, and industry shifts, then suggests the best combination per workload.

A Quick Setup for Running hermes agent Locally — macOS, Ollama, and qwen3.6:35b for a Fully Local Stack

The shortest path to installing NousResearch's hermes agent on macOS and wiring it to qwen3.6:35b running locally under Ollama. No cloud API anywhere. It comes down to three steps: pull the model, install and run setup, and launch the TUI.

Why I Quit Pomodoro in the AI Era - Let AI Run on Autopilot While Humans Rest

25 minutes on, 5 minutes off. I quit Pomodoro after years of faithful practice. When AI agents can work autonomously for hours, a fixed 25-minute timer makes no sense. My new rhythm: let AI work, and let the human rest.

Detecting Terraform Misconfigurations with Trivy: A Comparison Demo with Checkov

Following our Checkov demo, we scanned the same Terraform code with Trivy. Checkov found 37 issues; Trivy found 27. Where does the gap come from? We compare severity classification, IAM wildcard handling, and check ID systems using actual scan results.

Detecting Terraform Vulnerabilities with Checkov: An Insecure vs Secure Comparison Demo

IaC security should be verified before you apply. Checkov lets you detect Terraform vulnerabilities through static analysis. Using five AWS resources (S3, Security Group, RDS, IAM, CloudTrail), this demo reproduces the journey from 37 FAILEDs to 111 PASSEDs in a public repository.

How Much AWS RI and Savings Plans to Buy — A Strategy That Avoids 100% Commitment

Buying 100% coverage is not the right answer for RI and Savings Plans. Starting from hourly, non-rolling commitments, here is a practical strategy for committing only to your floor, incrementally.

A Design Blueprint for AWS Commitment Discounts in 2026 — Layering Strategy After Database Savings Plans

AWS cost optimization has one cardinal rule: shrink first, then commit. With Database Savings Plans (December 2025) at the center, this post lays out a three-layer stacking design (Compute SP for general compute, Reserved Instances for stable data tiers) through the lens of application order, provisioning math, and multi-account governance. The 2026 question is not how to chase the deepest discount, but how to design financial flexibility that never blocks modernization.

Choosing a Language for MDM Script Distribution — Tradeoffs Across Bash and Go

Should an MDM script be Bash, a Swift binary, or a Go binary wrapped in a PKG? Signed binaries need notarization, and Windows wants PowerShell. This post lays out the practical tradeoffs across Bash / zsh, Swift, Go, and PowerShell so you can pick by workload, not by habit.

Should Every Service Ship a Claude Code Plugin? — Rethinking Distribution After codex-plugin-cc

OpenAI's official codex-plugin-cc is genuinely good: I never had to leave Claude Code to drive Codex reviews and investigations. Plugins are working as a distribution channel that delivers a service inside the surface developers already use. Starting from codex-plugin-cc's design, this post discusses which services should ship plugins from day one, and the tradeoffs to weigh before committing.

Build a Documentation Site on Private GitHub Pages from Day 1

Documentation tends to get deprioritized, but setting up a documentation site on Day 1 makes sharing setup guides, architecture decisions, and operational procedures dramatically easier. With Private GitHub Pages, only team members with repository read access can view the site. This post introduces VitePress and Starlight as two fast-building options for internal documentation.

What Startup CTOs Should Take Away from Block's "From Hierarchy to Intelligence"

Block's "From Hierarchy to Intelligence" traces 2,000 years of hierarchical organization and argues that AI world models can replace the information-routing function that hierarchy has always provided. As a startup CTO, I break down the core thesis, Block's new four-layer model, and the practical lessons that apply regardless of company size.

Evolving into an AI-First Engineering Organization - 5 Structural Shifts Happening in 2026 and How to Replicate Them

Block restructured 40% of its organization citing AI capabilities. Meta analyzed post-AI-adoption productivity data and reshaped its workforce. Atlassian overhauled its R&D structure to self-fund AI investment. In 2026, AI-driven organizational evolution is accelerating across the tech industry. This article extracts 5 structural patterns from these moves and provides step-by-step guidance for replicating them in your own organization.

gh-security-scan: An AI Coding Assistant Skill for Cross-Organization Supply Chain Attack Investigation

Supply chain attacks like the axios npm account takeover are becoming more frequent. Investigating their impact across an entire organization is time-consuming manual work. We built gh-security-scan, an AI coding assistant skill that automates cross-organization security investigation. It supports Claude Code, Codex, and Gemini CLI.

Giving AI Coding CLIs Full Permission to Run Autonomously - Claude Code, Codex, and Gemini CLI Compared

To let AI coding CLIs run autonomously, you need to configure their permission settings. Claude Code has --dangerously-skip-permissions and auto mode. Codex CLI has --full-auto and --yolo. Gemini CLI has --approval-mode yolo. This post compares the three tools' permission models and explains which mode to use in which situation.

Stripe Local Fukuoka - The Reality of B2B Payments in Japan and the Evolution of Stripe

I attended Stripe Local Fukuoka and learned about the latest trends in payment processing and B2B transactions. Stripe can process single payments up to 99,999,999 JPY, and B2B credit card transactions in the range of 10,000 to 99,999,999 JPY are more common than you might think. I also shared my experience of building Tax, Subscription, and Radar features from scratch before Stripe offered them natively.

Can GitHub CODEOWNERS Bypass and Merge Queue Coexist?

I wanted to bypass CODEOWNERS review while keeping merge queue intact. After testing 4 scenarios with Branch Protection and Rulesets, I found that it's currently not possible.

CSV Column Auto-Recognition Patterns - Designing and Choosing Between Heuristic and LLM-Based Approaches

Column names from different marketplaces and ERP systems are never consistent. 'product_code', 'item_code', 'SKU' — countless naming variations for the same field. This article compares two approaches to automatic column recognition: heuristic matching with alias dictionaries and flexible LLM-based inference, with practical e-commerce implementation examples.

Building a Cloud-DB-Free Todo App with Next.js + PGlite and Deploying to Vercel

I built a Todo app with PGlite running in-browser Postgres and persisting to IndexedDB using Next.js 16, then deployed it to Vercel.

Beyond Trivy and tfsec - Comparing Alternative Security Scanning Tools (Grype, Checkov, Snyk, KICS)

The Trivy supply chain compromise and tfsec's maintenance-mode status have made it urgent to evaluate alternative security scanning tools. This article compares options beyond Trivy and tfsec: Grype, Snyk, and Docker Scout for vulnerability scanning, and Checkov and KICS for IaC scanning, with practical guidance on selection criteria and recommended combinations.

The Complete Guide to OSS-Licensed Local Coding LLMs (2026 Edition)

A complete guide to running OSS-licensed (Apache 2.0 / MIT) coding LLMs locally. Includes the latest model comparisons and practical setup instructions as of March 2026.

Local LLM Development by Japanese Companies: A Comprehensive Survey of Domestic AI Models

A comprehensive survey of local LLMs developed by Japanese companies, covering technical specs, industry adoption, and cost structures.

When the Fire TV Remote Stops Responding — Why an Overnight Rest Fixes It, and the Right Power Reset

My Fire TV remote suddenly stopped responding. New batteries did not help, re-pairing did not help. I gave up, left it overnight, and the next morning it worked as if nothing had happened. As an engineer, a fix with no known cause is the most unsatisfying ending of all. Here I break down why an overnight rest works, through Bluetooth pairing state, residual charge, and the Fire TV OS input process, and I lay out the power reset that fixes it in minutes rather than a night.

Granting Google Cloud Access by Team — Access Groups and Folders as Two Axes

"Folders or group addresses?" is a false choice. Folders scope permissions, groups identify principals, and the right design uses both axes together.

The Stance and Moves of Incident Response — Don't Blame, but the Owner Leads

If you operate systems, incidents are unavoidable. The question isn't whether you cause one, but how you move when it happens. I ask three things of my team. Don't blame the fact that it happened. But have the person closest to the cause take responsibility and lead the response. And let anyone in the room show leadership, regardless of title. Guided by blameless postmortems, Just Culture, and incident command, I work down to the concrete moves.

AI Software Testing Startups: The Definitive 2026 Guide — QA Enters the Agentic Era

AI agents are now the protagonists of QA. A deep dive into 40+ startups reshaping software testing across four categories in 2026.

Why I Chose Tauri for Building a Local LLM App on macOS / Windows

I chose Tauri for a cross-platform app powered by a local LLM. By letting AI agents write the code, having no Rust experience has not been a problem.

Cross-Platform Development Tools Comprehensive Comparison — Flutter, React Native, Tauri, KMP, Electron, .NET MAUI Latest Trends and Selection Guide [2026 Edition]

A comprehensive comparison of major cross-platform development tools including Flutter, React Native, Tauri, KMP, Electron, and .NET MAUI — covering 2026 latest trends with project-specific selection guidelines.

The CTO's Next Career — Why Unicorn Founders Move to AI Labs, and the 9-Step Exit That Makes It Possible

There are thousands of articles on how to start, fund, and scale a company, and almost none on how to leave one. Henry Shi, co-founder and CTO/COO of Super.com, wrote exactly that, then published the resignation process he spent nine months preparing as a 9-step playbook. His destination: Anthropic. His goal: safe AGI. Using this essay, I think through the question of a CTO's next career along three axes: the trend, the operator's value, and the design of a clean exit.

Where to Start with Cloudflare for Japan Enterprise — Entry Patterns from JCB, JAL, Mitsubishi Gas Chemical, and the Post-ISMAP Landscape

Cloudflare's Japan enterprise case studies (JAL, JCB, DeNA, Sansan, Money Forward, Mitsubishi Gas Chemical, Konoike, Lion, GMO, ZIPAIR, BASE) point to four practical entry patterns. This post synthesizes them, covers what changed after Cloudflare's ISMAP registration, and surfaces the adoption risks worth pricing in.

Comparing Multi-Platform Strategies: Claude Code, Codex, and Gemini

The three major AI coding tool providers, OpenAI Codex, Claude Code, and Google Gemini, have each solved the multi-platform problem differently. Codex uses a bidirectional JSON-RPC protocol (App Server), Claude Code exposes its harness as a library (Agent SDK), and Google fields three separate products along an autonomy spectrum. This post compares their approaches and extracts patterns for designing your own multi-platform product.

Pulumi and Terraform Migration Takes One Day - IaC Tool Choice Is Now a Reversible Decision

Choosing an IaC tool used to be a one-way door. Migrating hundreds of resource definitions, module structures, and state files would take weeks or months. But with AI coding assistants, Pulumi-to-Terraform and Terraform-to-Pulumi migrations now take a single day. This fundamentally changes how we should think about IaC tool selection.

How to Get Audit Logs on Cursor Teams Without Upgrading to Enterprise

Cursor Teams plan lacks audit log functionality, and even Enterprise audit logs only record management events, not prompt content or generated code. This post covers how to build audit trails using Cursor Hooks as the primary mechanism, supplemented by API gateways and SSO logs.

How to Get Audit Logs on Claude Team Plan Without Upgrading to Enterprise

Claude Team plan lacks audit log functionality. Rather than upgrading to Enterprise, you can build equivalent visibility by combining API gateways, browser monitoring, and CASB/DLP controls. This post covers specific tool choices and configuration examples for each layer.

Became a GitHub Sponsor of antfu

I became a GitHub Sponsor of antfu. Migrating from Marp to Slidev inspired me to support the OSS maintainer whose projects I benefit from daily.

Switching My Slide Creation Tool from Marp to Slidev

Switched from Marp to Slidev. It works great with Claude Code, and theme customization and video embedding are easy.

Migrating from openai-whisper to faster-whisper for Faster Transcription

Migrated from openai-whisper to faster-whisper for up to 4x faster audio transcription.

Why I Gave Up on AWS Copilot CLI for Preview Environments

I ran a PoC to build preview environments with AWS Copilot CLI and ended up abandoning the approach. Here's what went wrong and what I learned.

Adopting the Essence of Harness — 10 Principles to Improve Your DevOps

Harness improves DevOps. But you don't need Harness to adopt its essence. Here are 10 principles Harness embodies and how to implement them with OSS tools.

Harness Engineering — The New Discipline Powering Software Development in the AI Agent Era

In the age of AI-generated code, the engineer's job is shifting from writing code to designing environments where agents can work reliably. That environment design is what Harness Engineering is all about.

Cost Estimation for Cursor on the Teams Plan

Cursor's Teams plan has usage-based billing on top of the base fee, which can make costs hard to predict. Here's a breakdown of monthly costs by team size.

Cost Estimation for Claude Code on the Team Plan

Claude Code's Team plan has seat types and minimum seat requirements that can make costs hard to predict. Here's a breakdown of monthly costs by team size.

Managing Claude Code, Codex, and Gemini CLI with Homebrew and mise

To simplify setup across multiple Macs, I migrated Codex CLI and Gemini CLI to Homebrew and Claude Code to mise's install script.

Attended Geodesic Forum 2026 Tech Conference

I attended the Geodesic Forum 2026 hosted by Geodesic Capital. Here is an overview of the 10 companies that presented at the event.

Sandbox Services Compared — Isolation, Japan Region, and Pricing for the AI Agent Era

A deep dive into the fast-growing sandbox services landscape, comparing Firecracker microVMs, gVisor, and V8 isolates across key services — with a focus on Japan region availability and practical selection guidelines.

Comparing Permissive-Licensed OSS Load Testing Tools — k6 Alternatives and Use-Case Mapping

With k6 sitting on AGPL-3.0, requests to rebuild the load testing stack on permissive licenses only have become a regular conversation. This post lines up the major Apache 2.0 / MIT candidates (Gatling, Locust, JMeter, Goose, Vegeta, oha, Fortio, ghz, and others), comparing protocol coverage, resource efficiency, and CI/CD fit, and maps each to a workload.

Gemini CLI Is Apache 2.0 Licensed, but Read the Terms of Service

Gemini CLI's repository is licensed under Apache 2.0, allowing code modification and redistribution. However, the Terms of Service explicitly prohibit third-party tools from accessing the backing services. This post examines the gap between the open-source license and the service terms.

Auto-Generating Meeting Minutes from Video with a Gemini CLI Skill

I created a Gemini CLI skill that auto-generates meeting minutes from video files. Here's why I turned a multi-step workflow combining ffmpeg and Whisper into a reusable skill.

Drawing Hand-Drawn Style Diagrams with AI Using Excalidraw MCP Server & Agent Skill

With Excalidraw MCP Server & Agent Skill, you can have AI draw hand-drawn style diagrams with just a prompt. Here's the setup process and tips on changing the port.

Became a GitHub Sponsor of Homebrew

I became a GitHub Sponsor of Homebrew. It started when I visited the GitHub repository while organizing my Brewfile and discovered that I could sponsor the project.

macOS Initial Setup 2026 Edition

With a three-MacBook development setup, I had the chance to start from scratch. Here's my step-by-step workflow from Xcode Command Line Tools to a full Brewfile-based bulk install, documented as a work log.

Prototyping on Vercel + Next.js Without an External DB: Comparing 6 Embedded Databases

A technical guide to selecting in-process databases for rapid prototyping under Vercel's ephemeral filesystem constraints.

Distributing Windows Desktop Apps Through Customer Intune Tenants — A Software Vendor Playbook for Win32, MSIX, Code Signing, and Updates

If your customers use Microsoft Intune, almost every path to their Windows desktops in 2026 leads to the Win32 app format. LOB has narrow scope, Store for Business is gone, and MSIX only fits if your app is container-friendly. The vendor's job is to hand IT a signed MSI, an `.intunewin`, detection rules, ADMX templates, and silent install commands. This post lays out the software vendor playbook, including the geographic limits on Azure Artifact Signing (formerly Trusted Signing) that bite vendors based outside the US/EU.

Gemini CLI's Default Capabilities Are So Powerful That I Reconsidered My Approach to Creating Skills

I created skills to convert PDF to Excel, but a simple one-shot prompt did the job. The DCAP cycle is the best approach for AI-native Ops.

Deploy a Rails App to Fly.io and Get Preview Environments for Every Pull Request

Using Fly.io and GitHub Actions, you can automatically build isolated preview environments with PostgreSQL for every PR in your Rails app. This guide covers deployment to the Tokyo region (nrt) and the full GitHub Actions workflow setup.

Deploy a Rails App to Railway and Get Preview Environments for Every Pull Request

Using Railway's PR Preview Environments, you can automatically build isolated preview environments with PostgreSQL for every PR in your Rails app. It only requires a single railway.json file and Dashboard configuration — no GitHub Actions needed.

Implementing Custom Feature Flags with Vite + React

I built a simple feature flag system based on React Context without using LaunchDarkly, Unleash, or Flagsmith. This article covers the trunk-based development workflow as well.

Feature Flag Service Comparison — How to Choose Between OSS, Self-Hosting, and Japan Region

A comparison of major feature flag services, from SaaS offerings like LaunchDarkly to OSS options such as Unleash, Flagsmith, GrowthBook, and Bucketeer. Also covers how to choose a self-hosting strategy with the Japan region in mind.

Why the Gemini CLI Security Extension Impressed Me

I tried the Gemini CLI Security extension and it turned out to be impressively capable. While I've been using Claude Code and Codex with their defaults, I now want to actively leverage Gemini CLI extensions as well.

Migrating from asdf to mise

A walkthrough of migrating from asdf to mise and removing direnv.

How Staying Active on LinkedIn Led to a Japan CTO Inquiry from an Overseas Startup

By continuing to post on LinkedIn, I received an inquiry about a Japan CTO position from an overseas startup. I'll explain how important LinkedIn is for Japanese engineers aiming for a global career, based on my firsthand experience.

Library Vulnerability Update Policy Guide - Designing Severity-Based SLAs from Global Standards

'How many days do we have to patch a Critical vulnerability?' — There is no single authoritative answer. This article surveys major global frameworks, extracts the few that prescribe concrete timelines, and synthesizes them into a unified SLA design that is audit-ready and operationally practical.

Accelerating Java and Spring Boot Web App Development with AI Coding Agents — Repository Practices for the Claude Code and Codex Era

The biggest lever for running AI coding agents fast on Java and Spring Boot is not model selection but shaping the repository so the AI cannot misread it. Pin the boundaries with Spring Modulith and hexagonal architecture, enforce them mechanically with ArchUnit and Modulith verify in CI, reproduce databases locally with Testcontainers @ServiceConnection, and expose your running app to AI through the Spring AI 1.1 MCP Server Boot Starter. This post lays out the full setup for AI-native Java and Spring Boot development.

Cursor Official Getting Started Guide for Non-Developers

A summary of Cursor's official getting started information for non-developers and those without programming experience.

Famous OSS Web Applications Built with Java and Spring Boot — Notable Examples by Category

Spring Boot powers a remarkable range of open-source web applications, from teaching apps like Spring PetClinic to production platforms like ThingsBoard, Apache Fineract, and Apereo CAS. The right project to study depends on whether you want a reference, a production base, or an internal developer tool, so this post groups them by category.

Migrating Claude Code from npm Global Install to Native Install

Claude Code has migrated from npm to native installer. This guide explains how to resolve the shim priority issue for asdf users and properly migrate to the native version.

AWS Copilot CLI End-of-Support and Future Alternatives

AWS Copilot CLI's end-of-support is underway. Here's a summary of the confusing official announcements and the migration options being discussed in the community.

Accelerating Prototyping with AI Coding Tools Using AWS Copilot CLI

Deploy AI-generated applications to ECS/Fargate quickly with AWS Copilot CLI. This article explains why this workflow is so effective for prototyping.

Supabase Auth Custom SMTP Comparison - Evaluating All 6 Services from the Official Docs

Supabase Auth's default SMTP only sends to pre-authorized addresses, making it unusable in production. The official docs list 6 supported SMTP services under 'How to set up a custom SMTP server?' This post compares all 6 by free tier, SMTP configuration, and ease of setup.

Startup Study #9 Attendance Report

Attended Startup Study #9 at Kumamoto Shintoshin Plaza. Hosted by Yuma Sugiyama, the event featured a panel talk by Yukinori Fukatsu on Japanese startup strategies.

CLI Agent License Comparison and Commercial Use Guide - Claude Code, Codex, Gemini CLI

License investigation results for embedding CLI Agents into your product. Explains the differences between Claude Code (proprietary) and Codex/Gemini CLI (Apache 2.0), along with commercial use considerations.

Introducing SECURITY.md and security.txt to Open Source Projects - Learning from Giselle

Learn how to introduce SECURITY.md and security.txt to open source projects using Giselle as an example. Covers security policy writing, vulnerability reporting methods, and automating update reminders with GitHub Actions.

Bug Bounty Programs in Open Source Projects - Lessons from Implementation and Termination Cases

Investigating bug bounty program implementation and termination cases in open source projects. From big tech-led programs to OSS companies like Vercel, Supabase, and Neon, and new challenges in the AI era, we explore the current state of OSS security.

A MAGI System-like Approach: Ask 3 AIs the Same Question, Adopt If Unanimous

A consensus-based approach: ask 3 AIs the same question and adopt if unanimous. Giselle can streamline querying multiple AIs.

Setting Up Supabase Local Environment with Supabase CLI (Docker Desktop + macOS)

A step-by-step guide to setting up a local development environment with Supabase CLI on macOS. From Docker Desktop setup to launching Supabase locally.

How to Install Docker Desktop on an Existing Docker CLI Environment (macOS Homebrew)

Learn how to resolve completion file conflicts when installing Docker Desktop on an environment with only Docker CLI, using the --force option.

Colima + Docker CLI Setup Guide (macOS)

A practical guide to setting up a Colima + Docker CLI environment on macOS. Covers installation, basic operations, and resource configuration for this Docker Desktop alternative.

Became an Individual Sponsor of Tailwind CSS

I became an individual sponsor of Tailwind CSS. The discussion around the llms.txt endpoint PR inspired me to support Tailwind CSS, which I use daily.

Document Site Driven Development: Shipping Docs Before Code

Write the docs first. Let AI agents read them as specs. Build the code. A practical workflow using Fumadocs in a monorepo from day 1.

Specification-Driven Code Generation with LLMs — An Empirical Study on Telling AI What to Build

A look at an empirical study applying specification-driven approaches to LLM code generation. The CURRANTE VSCode extension enforces a spec-test-implement workflow, enabling quantitative analysis of how human intervention patterns affect generated code quality.

Published 'AI Utilization and the Democratization of Product Development' on ROUTE06 Tech Blog

As CTO of ROUTE06, I wrote about our AI-driven development initiatives from 2024 to 2025, and our outlook for 2026. Reflecting on the changes experienced through product development including Acsim, Liam ERD, and Giselle, and what will be required of engineers going forward.

Why You Should Separate the developers Team from the publish Team in npm Organizations ― A Practical Pattern for Clear Collaborators in Enterprise Settings

The developers team in npm Organizations cannot be deleted and all members are automatically added, making ownership unclear in enterprise settings. This article explains the practical pattern of separating publish teams and setting developers to read-only.

Complete List of Japan-Origin Products That Reached Product Hunt Daily Top 3 (2013–2025)

The rise of Japan-origin products on Product Hunt began with STUDIO in 2017. We confirmed 9 launches that achieved Daily top 3, with AI-powered products notably active since 2024. The example of indie developer Minute achieving 3rd place with a 'low-effort' strategy shows that top rankings are possible without large-scale marketing.

Displaying Product Hunt Badges on GitHub README: A Case Study of 7 Popular Repositories

Where should you place Product Hunt award badges on your GitHub README? After researching 7 popular OSS projects including Cal.com and Documenso, I concluded that a hybrid strategy—placing badges at the top right after launch to maximize momentum, then moving them to a Recognition section as the project matures—could be effective.

Rate Limit Storage Selection: PostgreSQL vs Redis

Comparing PostgreSQL and Redis as storage for rate limiting. We explain our decision to choose PostgreSQL based on the YAGNI principle, considering current rate limit settings and existing API request flow.

Rate Limit Algorithm Comparison and Case Studies

An explanation of how representative rate limiting algorithms work and guidelines for selection. Also introduces real-world adoption cases from major services including GitHub, X (Twitter), Slack, Cloudflare, Stripe, Discord, and Shopify.

Watching 'Pro Baseball Roster Cuts 2025' Made Me Think About 'Engineer Roster Cuts' Coming in 2026

At year's end, many families gather around the kotatsu to watch 'Pro Baseball Roster Cuts' as an annual tradition. Players who have chased their dreams are suddenly told they're 'cut from the roster.' But this harsh reality isn't just for professional baseball players. In 2025, AI evolution accelerated further, and the wave of 'roster cuts' is quietly but surely approaching the world of software engineers.

Official Launch of Open Source AI App Builder Giselle - Ranked #2 Worldwide on Product Hunt!

Our recently launched open source AI app builder 'Giselle' achieved Daily #2 on Product Hunt! Here's a behind-the-scenes look at the 24-hour challenge.

Official Documentation & Resource Links for Major AI Models (Anthropic, Google Gemini, OpenAI)

With new AI models constantly emerging, keeping up with official information can be challenging. This article compiles links to official documentation, pricing pages, and release announcements for major models from Anthropic (Claude), Google (Gemini), and OpenAI (GPT). Use it as a cheat sheet to speed up your development workflow.

Researching the Stripe Customer Portal Official Demo Site

Based on our implementation experience with Giselle, we researched the Stripe Customer Portal official demo site. We introduce the features you can experience in the Customer Portal, such as subscription management and payment method updates.

Health Habits for a Fully-Remote Worker — Closing the 10-Year Fitness Gap with Walks, Mobile AI Coding, and a Sit-Stand Desk

Office workers teleworking four-plus days per week showed a roughly 10-year-equivalent decline in physical fitness compared to non-teleworkers (Meiji Yasuda Health Foundation, December 2025). As someone working fully remote, I want to write down the habits I actually keep: walks scheduled inside work hours, leaning on Claude Code and Codex from mobile, and defaulting to a sit-stand desk.

Talk Report: "Fukuoka Tech LT Year-End Party" - Building an AI QA Assistant with Giselle

I gave a talk titled "Building an AI QA Assistant with Giselle - Continuous QA for Pull Request Reviews" at "Fukuoka Tech LT Year-End Party" held in Fukuoka. I discussed a system that automatically provides QA feedback when PRs are created, reducing rework costs from last-minute QA. This article shares the content of that presentation.

Resolving WASM Module Loading Errors in Next.js v16 Turbopack + Vercel

Are you encountering the unexpected error Cannot find module '.wasm' after adopting Turbopack for a faster development experience with Next.js? The problem becomes even more complex in Vercel environments due to different file structures compared to local development. This article introduces concrete solutions for making WASM modules work reliably with Turbopack and Vercel, using @embedpdf/pdfium as an example.

Changelog Sites That Inspired Our English Release Notes for Global Expansion

Release notes communicate your product's evolution. We researched many examples to improve their quality. In this article, we share the changelog sites we referenced and the lessons we learned from them.

Changed Cloudflare's robots.txt Management from 'Content Signals Policy' to 'Direct AI Bot Traffic via robots.txt' to Allow AI Bot Crawling

Claude Code couldn't read articles from this site...? The cause was Cloudflare's Content Signals Policy setting for managing robots.txt. This article summarizes the background, specific steps, and effects of changing the settings to align with the era of AI-powered information utilization.

Updated robots.txt Based on Content Signals to Open All Content for AI Training

I want to provide my content as context for AI, and I find it advantageous for AI training purposes. For these reasons, I have made all content on this site, codenote.net, available for search engines, AI input, and AI training. This article introduces the robots.txt updates based on Content Signals policy and the background behind this decision.

GitHub Copilot Suggested Adding Comments to a JSON File

Did the AI not know that JSON doesn't support comments? GitHub Copilot's code review suggested adding comments to a JSON file—an accurate yet amusing moment I'd like to share.

How pnpm's minimumReleaseAgeExclude Helped with Emergency Security Updates

pnpm's minimumReleaseAge is a useful setting that delays installing freshly released packages to improve stability. However, when you need to urgently apply security patches, this setting can work against you. This article introduces a real-world example of using minimumReleaseAgeExclude to exclude specific packages from the restriction, enabling rapid and safe security update responses.

Building a Workflow to Backdate GitHub Releases with Claude Code

Forgetting to create release notes is a common developer struggle. This article introduces a workflow that uses Claude Code to automatically generate GitHub releases from past PR history. We explain the specific steps and know-how that allowed us to organize 7 months of changelog in just a few hours.

Gemini CLI May Automatically Merge Your PR When You Ask It to Review

AI code review can boost development efficiency, but some tools may behave unexpectedly. I'll share my experience of breaking into a cold sweat when Gemini CLI executed Approve and Merge all at once after I asked it to review a PR. This is a safety warning for using AI effectively.

Is a Salary Freeze Effectively a 3% Pay Cut? The Reality of Rising Prices and Real Wages (November 2025)

Do you feel like your paycheck should be going further, but somehow it isn't? As prices continued to rise throughout 2025, the real value of our wages has been steadily declining. This article uses official data to simulate just how much harder life would be if your salary had been frozen, and explores what engineers can do to break free from this situation.

Understanding OpenRouter's Transaction Fees and Cost Structure

While OpenRouter's appeal lies in having no markup on model usage fees, there are actually fees incurred when purchasing credits. This article explains the often-overlooked fee structure and key points for accurately understanding your costs.

How to Separate Vercel AI Gateway Across Multiple Environments (production, preview, development)

Vercel AI Gateway is extremely useful, but as development progresses, you may need to separate settings by environment for cost management or external integrations. Our investigation revealed that currently, the only way to achieve this is by separating at the Vercel Team level. This article summarizes the details and our thoughts on the matter.

Inviting gmail.com / outlook.com Members to Claude Team Plan — Add Public Email Domains to Allowed Domains

Ever been blocked by Claude Team's domain restriction when trying to invite someone who only has a personal Gmail address? You can simply add gmail.com to the allowed email domains. Contractors and individual partners can then be invited normally. Here's the tip, plus what to watch for when allowing a public email domain.

How to Invite Team Members with Different Domain Email Addresses in Claude Team Plan

After signing up for Claude's Team plan, are you confused by the message 'Invited members must have the same domain as you'? This article explains the simple steps to add allowed email domains in admin settings and invite members with multiple domains to your team.

Smart Cross-Organization Collaboration with Slack Canvas and List

Have you ever struggled with different documentation tools when collaborating with external partners? Our team solved this problem simply by using Canvas, which is built into Slack. Here's how we put it to use.

Speaking Report from "Cloudflare Workers Tech Talks in Fukuoka #1" ~ Decision-Making for Adopting Hono in Acsim, an AI Requirements Definition Platform

I had the opportunity to speak at "Cloudflare Workers Tech Talks in Fukuoka #1" held in Fukuoka, presenting on "Decision-Making for Adopting Hono in Acsim, an AI Requirements Definition Platform." I discussed the type-safe development experience brought by schema-driven development with @hono/zod-openapi and the background behind this technology selection. This article shares the content of that presentation.

Codex CLI Zombie Processes Consuming CPU and Temporary Fix with pkill

A mysterious CPU spike on my dev machine... the culprit was zombified Codex CLI. Here's a quick and dirty workaround using pkill in cron until a proper fix is available.

I Applied for Lightning Talks at YAPC::Fukuoka 2025

I applied for three lightning talks at YAPC::Fukuoka 2025: 'I Create the AI Agent I Want to Use,' '24365, I Want to Work with AI,' and 'AI99 ~ Racing Through 99 Emotions of Working with AI in 300 Seconds.' Unfortunately, all three proposals were rejected.

Participated in Startup CTO Night & Day 2025 Powered by AWS

I participated in Startup CTO Night & Day 2025 Powered by AWS. This year, I had the opportunity to present at the 'Shikujiri! CTO Dojo' session, which was a great experience. While much of the content was off-the-record and cannot be shared in detail, I wrote this article as a record of my participation.

Event Organizer's Report: Chinese Restaurant 'Suiran' Was the Perfect Choice for Post-Makuhari Messe After-Party

After a large-scale exhibition at Makuhari Messe, the after-party celebration is truly special. 'Chinese Restaurant Suiran' was outstanding, so I'm enthusiastically recommending it to future event organizers.

JP_Stripes Fukuoka Vol.12 Presentation Report ~ Pioneering Stripe API Migration with Speculative Implementation × AI

I recently presented at JP_Stripes Fukuoka Vol.12 with the title 'Pioneering Stripe API Migration with Speculative Implementation × AI.' I shared a case study on how we visualized Stripe API migration risks using AI and efficiently promoted the project in a safe manner. This article shares the content of that presentation.

Supercharge Development with AI! Refactoring Towards AI-Friendly Code

AI coding tools are now indispensable partners in development. The refactoring they frequently suggest actually holds hidden hints for supercharging your development. Why is writing code that AI prefers the key to future team development?

Exploring Famous Services Using 'ui.' as a Subdomain

Is 'ui.example.com' as a subdomain acceptable or not? When I looked into it, I discovered that many famous UI libraries have adopted this convention. Here are my research findings.

How to Resolve 'Free credits temporarily have restricted access' Error in Vercel AI Gateway

When using Vercel AI Gateway, you might suddenly encounter the error 'UnknownError: Free credits temporarily have restricted access due to abuse.' This article explains why this error occurs even when using BYOK, and how to resolve it based on Vercel support's response.

Attended the 2025 Kumamoto New Industry & IT Business Exchange

I attended an exchange event where Kumamoto's IT community gathered. Here's a participant's perspective on the exciting evening featuring lightning talks and vibrant interactions.

Trigger.dev's Maximum Execution Time is Effectively Infinite ∞

Timeouts are a common challenge in serverless environments like Vercel. With Trigger.dev, you don't need to worry. In this article, we'll share information from the official site and support team inquiry results about Trigger.dev's maximum execution time. Surprisingly, the execution time is virtually unlimited!

AI Coding and Review Tools I Use and How I Use Them (2025-10-06)

With AI-powered development assistance now commonplace, numerous tools are available. This article introduces my specific approach to using AI coding and review tools as of October 6, 2025. From OpenAI Codex CLI, which plays a leading role in implementation, to Claude Code CLI, which understands the context of the entire project, and review agents on Pull Requests that ensure quality from multiple perspectives, I've compiled my current best practices.

What an AI Outage Taught Me: From Tool to Teammate

A day when Claude Code went down and one of my development partners became unavailable. The feeling was like a teammate calling in sick, making me realize that AI is no longer just a tool. A report from the development field in the AI era.

The AI Era Trap 'Workslop': How to Ensure Quality in AI Coding vs AI Code Review?

AI coding assistance tools are becoming indispensable in development environments. However, low-quality code and review comments generated by AI, so-called 'workslop,' are beginning to emerge as new productivity impediments. What do we need to maximize the benefits of AI while avoiding quality pitfalls?

Attended Developers Summit 2025 FUKUOKA

I attended DevSumi Fukuoka 2025 and gained many insights about the future of AI and engineers. In this article, I report on the learnings from particularly impressive sessions and the overall atmosphere of the event.

Root Cause and Permanent Solution for Permission denied Error on git commit in macOS

I suddenly encountered a Permission denied error when running git commit on macOS. While I introduced a workaround in a previous article, this time I was able to identify and solve the root cause, which I'll share with you here.

Causes and Workaround Solutions for git commit Permission denied on macOS

Getting `Permission denied` when trying to `git commit` on macOS...? Don't panic - let's isolate the cause and resolve it. This article introduces safe methods to fix the error, from checking Git hooks to macOS temporary directory issues.

I Became an Individual Sponsor for the Ruby Programming Contest for Junior High and High School Students 2025

As a software engineer who has benefited greatly from the Ruby language, I decided to become an individual sponsor for the 'Ruby Programming Contest for Junior High and High School Students 2025' to support this wonderful initiative that nurtures the next generation of talent.

Prototype Development of a PDF to Text Extraction and Image Conversion CLI Tool with Node.js and WASM Libraries

I want to extract text and images from PDFs for use in vectorization for RAG. With this background, I developed a prototype CLI tool that's easy to use with Node.js. The key point is leveraging WebAssembly (Wasm) for use in serverless environments. This article introduces the background of our technology selection and an overview of the implementation.

Prototyping an Image-Text Similarity Calculator to Measure Image-Text Similarity with Cohere Embed 4

How similar is an image of a requirements document to the text 'EC site requirements'? With Cohere's latest multimodal embedding model Embed 4, calculating such image-text similarities becomes straightforward. This article provides a detailed explanation of the sample code and usage of a Node.js-based Image-Text Similarity Calculator as a prototyping implementation.

Cohere API Data Can Be Opted Out from Training Usage

Essential reading for developers concerned about Cohere API data privacy. From default data usage policies to simple opt-out methods via dashboard, and advanced security options like Zero Data Retention (ZDR) and private cloud deployment - we explain all options to protect your data in an easy-to-understand way.

Cohere Trial Key Pricing and Limits Summary for Free Trial

This article explains Cohere's free Trial key. After reading this, you'll understand the Trial key's pricing, usage limits, and rate restrictions, allowing you to confidently start evaluating Cohere API.

ROUTE06 Forms Strategic Partnership with Vercel

ROUTE06 Inc. has formed a strategic partnership with Vercel Inc. This represents a significant milestone for us, as we have extensively utilized Vercel across many product developments, including Acsim. Through this partnership, we envision revolutionizing the quality and speed of development through AI-driven design.

Investigating Job Cancellations in GitHub Actions by Enabling Debug Logging

Have you ever been frustrated by GitHub Actions jobs suddenly failing with 'The operation was canceled.' errors? When regular logs provide insufficient information for troubleshooting, this article demonstrates specific methods to enable debug logging and find clues for problem resolution.

Fixed Google Vertex AI Error Code 429 (Resource Exhausted) by Changing Location to `global`

Suddenly encountering error code 429 during Vertex AI development can be frustrating when you're told 'resources are exhausted.' This article introduces a method that solved this problem by simply changing the API endpoint location from `us-central1` to `global`.

Event Report: "Test Automation Cases That Reflect QA Engineers' Thinking"

How realistic is the dream of "automating all tests with AI"? From the importance of "expected quality" and complex test automation cases for phone services, I gained grounded insights into practical AI utilization.

Vercel AI Gateway Does Not Use Data for Training Regardless of Plan

Data privacy concerns when using Vercel AI Gateway were addressed. Particularly for non-Enterprise plans, data usage was unclear, but the Vercel team has now provided a clear answer: 'Data will not be used for training regardless of plan.' We can now use AI Gateway with peace of mind.

Submitted a Proposal to YAPC::Fukuoka 2025

Vibe Coders who utilize increasingly popular AI coding tools. Common patterns, stumbling points, and concrete measures to reduce review burden while ensuring quality that emerged from code reviews of Vibe Coders. A proposal submitted to YAPC::Fukuoka 2025.

Making Mintlify Documentation Sites Multilingual (English/Japanese)

A guide on how to make a documentation site built with Mintlify multilingual, supporting both English and Japanese. Covers everything from docs.json configuration to directory structure and actual translation file placement with concrete examples.

If You Get mint.json Errors in Mintlify, Try Upgrading to docs.json

While building a documentation site with Mintlify, I encountered an unexpected error in the `mint.json` configuration. It followed the official documentation, so why? The cause was a configuration file version upgrade. This article explains the procedure for migrating from `mint.json` to the new `docs.json`.

Designing Scalable Developer Documentation: Reverse-Engineering from Mintlify Case Studies

With the motto 'Documentation is part of the product,' learn sustainable design and systematization from 8 case studies.

Made a personal donation to become a '2025 Ruby Association Supporter'

Following 2023 and 2024, I made a personal donation to Ruby Association again this year to become a '2025 Ruby Association Supporter'. This marks my third year of continued support.

Configuring Mintlify After GitHub Repository Transfer

When GitHub repository transfer breaks Mintlify deployments, here's the simple process to update Mintlify's Git integration settings to the new Organization and repository.

URL Normalization for Astro Sites: Why and How to Always Enable Trailing Slash

Should you add a slash / at the end of website URLs or not? This is one of the important themes when considering SEO. For CodeNote.net, I reviewed the Astro configuration and decided to always enable trailing slash. I'll share the reasons and specific configuration methods.

ChatGPT Voice Mode Exceeded Expectations for English Conversation Practice

When an English business meeting was suddenly scheduled, I rushed to rehabilitate my conversational English. I tried ChatGPT's voice mode, which I had been curious about for a while, and found it to be unexpectedly effective and extremely useful as an English learning tool.

OWASP Security Standards Adopted by Major Platforms - Learning from Google, Microsoft, Salesforce, and Slack

We introduce cases where major platforms have adopted OWASP as a security review standard for web application development. The fact that giant platforms like Google, Microsoft, Salesforce, and Slack have adopted OWASP as their standard demonstrates that it serves as the security baseline for modern web application development.

Made CodeNote.net Multilingual

During the three-day weekend, I implemented multilingual support for CodeNote.net that I had wanted to work on for a while. This is the first phase where I added English support, and I've summarized the specific steps from URL design to hreflang configuration, which is important for SEO.

GitHub Issue Attachments Cannot Be Downloaded via API or PAT

Are you trying to programmatically download files attached to GitHub Issues? Unfortunately, this functionality is not currently supported by the API. This article shares the methods I tried and the official response from GitHub Support.

Bugbot is an AI Code Review Tool That Accurately Finds Bugs

Using Cursor's Bugbot on real projects, I compared it subjectively with CodeRabbit, Qodo Merge, and GitHub Copilot code review. Let me introduce an AI code review tool that accurately points out bugs.

読書メモ『世界秩序が変わるとき』/ Reading Notes: 'When the World Order Changes'

The conversation between a CEO and CIO in 'When the World Order Changes' aptly captures the talent development dilemma faced by modern companies, especially in the IT industry. With the rise of AI, employee reskilling is no longer an option but the very survival strategy for businesses.

Shell Script to Bulk Cancel GitHub Actions Workflow Queues

GitHub Actions queue overflow due to CI configuration mistakes...! Introducing a bulk cancellation script using gh-cli to rescue you from such desperate situations. Achieve lightning-fast cancellation with parallel processing.

Attended SRE NEXT 2025

I attended SRE NEXT 2025 on-site. This was my second consecutive year participating, following last year.

Should Allow Come Before Disallow in robots.txt? RFC and Compatibility Best Practices

The claim that 'Allow must be written first in robots.txt or it won't work.' While this is technically incorrect according to the latest RFC, it's a best practice that can't be ignored for compatibility reasons. This article explains why, based on RFC 9309 and older crawler behavior.

Two Ways to Find Vercel ORG_ID and PROJECT_ID

Need ORG_ID and PROJECT_ID for Vercel CLI or API integration? This article explains two methods: checking the local .vercel directory and finding them through the Vercel dashboard.

How to Set Up Vercel Comments Notifications to Slack

Vercel's preview feature is incredibly useful, right? But are you missing comments from designers or PMs? This article provides a step-by-step guide on integrating Vercel Comments with Slack to instantly catch up on feedback.

GitHub Support Inquiries in English Get Faster Responses Than Japanese

GitHub Support has different response times depending on the language you use for inquiries. For urgent issues or problems that occur on weekends, you're more likely to get faster responses by contacting them in English rather than Japanese. This article explains the reasons and specific response times based on official documentation.

How to Switch from Anthropic API Key to Claude Pro/Max/Team Subscription in Claude Code

Learn how to easily switch the authentication method in Claude Code from API key to Claude Pro/Max/Team subscription accounts.

How to Disable Password Manager Auto-save and Auto-fill for input type="password"

Password managers like 1Password and LastPass are very convenient, but there are situations where developers want to control auto-fill and save suggestions. This article explains HTML attributes to disable those features for specific input fields.

TSKaigi 2025 Individual Sponsor & Participation Report

I participated in TSKaigi 2025 as an individual sponsor. This article reports on session summaries and insights gained from the event.

A Systematic Guide to Software Testing Types — ISTQB-Based Test Levels, Types & Techniques

A systematic overview of software testing types based on the ISTQB framework. Covers test levels (unit, integration, system, system integration, acceptance), test types (functional, non-functional, regression), test design techniques, and the test pyramid.

Presented Lightning Talk at 'Road to SRE NEXT@Fukuoka'

On May 9, 2025, I gave a lightning talk titled 'Getting Started with LLM Tracing for AI Apps Using Langfuse' at the SRE meetup 'Road to SRE NEXT@Fukuoka' held in Fukuoka. This article introduces the presentation content and slides.

Reading Notes: 'How to Use Limited Time'

Reading notes on 'How to Use Limited Time.' Within the finiteness of life's approximately 4000 weeks, how should we live 'now' and narrow down possibilities? Considering hints for task management and perspectives on time gained from this book.

Added llms.txt to Astro Website

Added llms.txt to an Astro site. Since no plugin was found, I asked AI (Cursor/Claude 3.7 Sonnet) to implement it. Introducing that code.

Learning from 'シリコンバレーによろしく'! LinkedIn Mastery for Global Startups

For startups aiming for global market success, LinkedIn is not just another social network. It's a powerful tool that can be leveraged for trust building, lead generation, hiring, market research, and every aspect of business. This article explains how I'm implementing the LinkedIn mastery techniques introduced in the podcast 'シリコンバレーによろしく リターンズ'.

Continuing Product Development with a User-First Perspective

I believe that developing with a user-first perspective, rather than prioritizing only software engineers' convenience, is an important trade-off in software development.

MCP (Model Context Protocol) Technical Introduction

A compilation of reference information including official documentation, implementation examples, security considerations, and interesting use cases that I encountered while learning about MCP (Model Context Protocol), which has been gaining attention recently.

How to Fix 'command not found' Error After npm install --global in asdf Environment

asdf is a very convenient version management tool, but when globally installing commands with npm install --global, the path may not be available and 'command not found' may appear. This article explains the cause and the simple solution using the asdf reshim command.

Reading Notes: 'Life Management Strategy'

From Shu Yamaguchi's book 'Life Management Strategy,' I condense hints for proactively designing life. I introduce important concepts useful for daily choices and growth—lifecycle, intellectual productivity, option value, servant leadership—along with quotes from the book.

Uninstalling Fig and Installing zsh-autosuggestions

A walkthrough of switching from Fig to zsh-autosuggestions for terminal autocompletion.

Mastra's License is Elastic License 2.0 (ELv2) - Commercial Use Considerations and OSS License Comparison

Mastra's license (ELv2) is not an OSS license, so caution is needed for commercial use. It's recommended to use Mastra with an understanding of the points to avoid.

Reading Notes: 'Takao Ozawa: Business Theory for Ordinary People'

From the book about Takao Ozawa, 'Business Theory for Ordinary People,' we learn simple principles for success for those of us who aren't geniuses. What are the decision-making factors for business success and the thinking method of knocking down high-impact 'center pins'? I'll introduce the key points from this book.

Mintlify Automatically Generates llms.txt and llms-full.txt

Mintlify automatically generates llms.txt describing LLM content usage policies for documentation sites and llms-full.txt that compiles the entire site into a single file. Learn how these files, which serve roles similar to robots.txt, function.

How to Call MCP Tools from Cursor

How to call MCP tools from Cursor. The conclusion is that they are only available in Agent mode.

I Presented at "Engineer LT & Networking Event supported by Kumamoto City & AWS Startup"

I presented at an engineer LT & networking event supported by Kumamoto City and AWS Startup, introducing and demonstrating our AI Agent Builder "Giselle" currently in development.

I Registered on Findy But I'm Not Job Hunting

My reason for registering on Findy wasn't job hunting, but rather the attractive online events hosted by Findy Inc. Despite having no intention to change jobs, I received 'likes' from companies, and I'd like to express my apologetic feelings through this article.

Steps to Install Diffusers on macOS

A installation guide for using Hugging Face's Diffusers library in macOS environment. Step-by-step instructions from setting up Python virtual environments to installing dependencies like PyTorch, Transformers, Accelerate, and Diffusers itself.

Free Tools to Check SPF, DKIM, and DMARC Settings

SPF, DKIM, and DMARC settings are essential for email security and deliverability. This article introduces free tools to check these settings and compares their features. Use these tools to enhance your email reliability.

Free PostgreSQL GUI Tool 'Postico' is User-Friendly on macOS

We compared free PostgreSQL GUI tools available on macOS and summarized the features and user experience of each. Postico particularly felt user-friendly.

Reading Notes: 'Life Strategy Book for the Second Half: How a Harvard Professor Teaches You to Rebuild Your Life and Career'

Analyzing the life strategy book for the second half, considering career peaks and declines, changes in intelligence, dependence on success, and the pursuit of happiness. Four lessons useful for life transitions and thinking about how to live going forward.

My First OSS Contribution to Firecrawl

Introducing my OSS contribution to Firecrawl, which was included in the v1.1.0 release.

Reading Notes: 'Your Company Won't Develop You: Designing Work Methods to Create Opportunities and Time'

Finished reading 'Your Company Won't Develop You'. Reflecting on personal growth through career theory and work design.

Tabs or Spaces: Considering Indentation from an Accessibility Perspective

An issue attempting to change indentation to spaces led me to reconsider the importance of tabs from an accessibility perspective.

How to Adjust Tab Indent Display in GitHub Code

Introduces steps to change tab indent display size in GitHub. Optimize settings to improve work efficiency.

I Attended GitHub Universe Recap Tokyo 2024

Introduction to llms.txt and OSS Marketing Insights

What is llms.txt? It's a file for LLMs to understand websites. We'll explain the benefits of implementation, how to write it, and the procedure. We'll also introduce hints for OSS marketing.

I Attended ALL STAR SAAS CONFERENCE 2024

Airtable Strengthens API Usage Limits: Important Notice for Free Plan Users Starting December 2, 2024

Airtable announced changes to API limits for Free plan users. Countermeasures are needed for when request limits are exceeded.

Reading Log: 'The Demise of White-Collar Work: How Should We Change Our Way of Working?'

The AI revolution is turning many white-collar jobs into bullshit jobs. Middle management positions requiring creativity and decision-making will survive.

How to Set Up GitHub Pull Request Reminders to Slack

Detailed explanation of how to set up GitHub Pull Request reminders to be sent to Slack.

How to Install Ollama and Use Local LLMs

Ollama is a tool that enables easy setup and operation of large language models (LLMs) in local environments. It ensures data privacy while providing fast responses. Learn how to install Ollama with Homebrew and run models like Llama 3.2 to harness the power of LLMs locally.

ImageMagick Command to Convert PNG Images to favicon.ico

Introducing how to convert PNG images to favicon.ico using ImageMagick. You can easily convert by installing ImageMagick and using the `magick` command.

Don't Use CSS Text Truncation with Ellipses (...) for SEO

Introducing why we avoid CSS text truncation with ellipses, as it may lead to SEO penalties.

Recommended URL for 'Specified Commercial Transactions Act' Page: /specified-commercial-transactions or /sct

I'll share my research findings suggesting that /specified-commercial-transactions or /sct are recommended URL paths for 'Specified Commercial Transactions Act' pages.

Payment Service Comparison for Global SaaS Launch - Stripe Payments or Zuora Billing

For payment services for global SaaS, I recommend starting with Stripe Payments due to its cost-effectiveness and ease of implementation.

Self-hosting the OSS Version of Firecrawl

Achieved Perfect 100 Scores on All PageSpeed Insights Metrics

Script to Extract RSS Feed URL from Apple Podcasts

Introducing a script to easily extract RSS feed URLs from your favorite podcasts on Apple Podcasts.

Age Restrictions in OpenAI API Terms of Use and Service Operations Response

Sharing thoughts on age restrictions based on OpenAI API terms of use and responses during service operations.

Reading Log: 'Elon Shock: 215 Days of Destruction and Creation Witnessed by the Former Twitter Japan President'

Attended SRE NEXT 2024

Hybrid participation in SRE NEXT 2024. Attended on-site on day one and watched online on day two, gaining many insights.

How to Make Vercel Preview URLs Publicly Accessible

Participated in AWS CTO Night and Day 2024 in Kanazawa

GDPR, Adequacy Decisions, and Data Privacy Framework

Open Source Software (OSS) and Company List Featured by Unusual Ventures

Supabase Privacy and Security

Summary of Clerk Use Cases

Google Podcasts Is Ending So I Migrated to YouTube Music and Pocket Casts

AlphaFold 2 (Open Source) -> AlphaFold 3 (Closed Source)

Introduction to Open Source Program Office (OSPO)

I Became a Linux Foundation Individual Supporter

Examples of Organizations Prohibiting AGPL License Usage

Reading Notes: 'Generative AI: The True Winner'

Lessons from 'Open Source: From Community to Commercialization | Andreessen Horowitz'

Reading Notes: 'Future-Making Entrepreneurs: Failure and Success Stories of 20 Japan-Born Startups'

Reading Notes: 'Open Sources: Voices from the Open Source Revolution'

Attended RubyKaigi 2024

Reading Notes: 'The Startup: Internet Entrepreneurship! Let That Fool Give It a Try'

TSKaigi 2024 Individual Sponsor & Participation Report

I Participated Online in Generative AI Conference 2024

Converting Markdown Slides to PDF with marp-cli

Reading Notes: 'The Uber War: How It Rose, Dominated, and Became Hated by Society' by Mike Isaac

Reading Notes: 'The Rich Theory Nobody Taught You' by Tsutomu Jonenju

Became a '2024 Ruby Association Supporter' Through Individual Donation

Google Search Guidance for AI-Generated Content and Author Markup Policy

Top Ruby Companies: Find Out Which World-Class Companies Use Ruby

I Became a Personal Sponsor of Python

Free Books for Learning Software Testing and QA (Quality Assurance) in Waterfall Development

Reading Notes: 'Single Dad Entrepreneur Doesn't Try Too Hard - Philosophy of Living Freely' by Hibi Miyazaki

Individual Sponsor & On-site Participation at Penguin Hack 2024

Reading Notes: 'How Generative AI Will Change the World' by Shota Imai

Personal Sponsorship of ONDO, a Shared Office Space in Kumamoto

Speaking at 'Startup Meetup Kumamoto @ XOSS POINT.'

Product Development and People, Products, Money

How to Install Shopify CLI and Theme on macOS

Reading Notes: 'Hirohiko Araki's Manga Techniques' by Hirohiko Araki

Reading Notes: 'First UX Design Guide' by Akihiko Ogihara / はじめてのUXデザイン図鑑

How to Fix 'This site can't be reached DNS_PROBE_FINISHED_NXDOMAIN' in Chrome Browser

Reading Notes: 'User First: Yoshiteru Akita and Kufu Company - The Man Who Developed Tabelog and Cookpad' by Tsuneyoshi Noji / ユーザーファースト　穐田誉輝とくふうカンパニー

How to Create Digital Stamps for Free with Adobe Acrobat Reader and Stamp PDFs

I Became a Personal Sponsor of yhatt

Setting Up SPF, DKIM, and DMARC

I Became a Personal Sponsor of Biome

I Became a Personal Sponsor of pocke

I Became a Personal Sponsor of Vite

Trial and Error Using Japanese with Amazon Titan Foundation Model on Amazon Bedrock

Comparison of GitHub Sponsors and Open Collective

How to Fix ERROR: Could not find a version that satisfies the requirement torch (from versions: none)

読書メモ『イーロン・マスク 上』/ Reading Notes: 'Elon Musk' - The 'Five Commandments' for Revolutionizing Development Processes

'Question every requirement first,' 'Don't automate first' — Have you heard of the work 'algorithm' revealed in Walter Isaacson's biography 'Elon Musk'? This isn't just about manufacturing; it offers profound insights that are highly applicable to software development. This article explores these five commandments and how we can apply them to our daily development work.

Managing Multiple Bun Versions with asdf

Technical Product Owner

Reading Notes: 'Practical Introduction to Building Chat Systems with ChatGPT/LangChain' by Shingo Yoshida / ChatGPT/LangChainによるチャットシステム構築［実践］入門

Managing Multiple Python Versions with asdf

How to Create a Microsoft Azure Account and Initial Setup

Tokyo Otaku Mode Acquired by Shogakukan — Reflections From Someone There Since the Early Days

Tokyo Otaku Mode has been fully acquired by Shogakukan. I was part of it for roughly eight years from the early days, both as an engineer and as a shareholder. This is the story of how the company grew from media into e-commerce and cross-border logistics, told from someone who was inside it.

Registered on Bluesky and Set Up Custom Domain

Reading Notes: 'AMP IT UP: Leading for Hypergrowth' by Frank Slootman / AMP IT UP 最高を超える

Purchased 'HHKB Typing Bed PW-HHC-2'

Installed VLC Due to QuickTime Freezing Bug on macOS 14 Sonoma

Shell Script to Open GitHub Issues Updated in the Last n Hours in Browser

Purchased Google Pixel 8 Pro

Cloudflare Pages Error: Exit with error code: 126 When Specified Node.js Version Is Not Available

Books I Read to Learn About Software Testing and QA Engineering

The Origin of Software Engineer Culture: 'Personal User Manual / Public User Guide'

Participated in AWS CTO Night and Day 2023

Debugging GitHub Actions for GitHub Pages Deployment by Deploying on Every Push

Joined the Japan CTO Association as an Individual Member

Reading Notes: 'Org Design for Design Orgs' by Peter Merholz / デザイン組織のつくりかた

marp-vscode Is Recommended for Creating Slides from Markdown

How to Export to PDF from Figma Plugin Pitchdeck Presentation Studio

[Personal Development] Created a Chrome Extension to Get Tweet Embed Code

Personal Donation to Become '2023 Ruby Association Supporter'

Joined the Japan Hacker Association

Research on Wix eCommerce Advantages and Disadvantages

Creating GitHub Issues from CLI with gh issue create

Held Book Club for 'Introduction to Modern Applications with AWS: What Serverless, Containers, and Microservices Can Do'

Reading Notes: 'Zero to IPO' by Frederic Kerrest

Automating git commit and branch creation with GitHub Actions

How to Reset FLEXISPOT E7 When One Leg Tilts

Adobe Commerce Feature Map and Integration Options Are Helpful References

How to Change GitHub Theme Preference

Joined Twitter Blue After Twitter's Recommendation Algorithm Source Code Was Released

Solution for ECR Connection Error After Changing VPC Settings with S3 Endpoint on AWS

Reference Information Summary for Learning the Difference Between OpenID Connect and OAuth 2.0

PFU HHKB Professional HYBRID Type-S Cannot Be Charged via USB Type-C

Japanese Text Recognition from Images Using Tesseract OCR [macOS Edition]

Reading Notes 'ZERO to ONE（ゼロ・トゥ・ワン） 君はゼロから何を生み出せるか / Zero to One: Notes on Startups, or How to Build the Future' by Peter Thiel

Using Auth0 with Next.js

How to Transfer Billing Accounts Between Google Cloud Organizations

Deploying Next.js (SSG) to GitHub Pages Using Custom GitHub Actions Workflows

Reading Notes '起業家の勇気　USEN宇野康秀とベンチャーの興亡 / The Entrepreneur's Courage: USEN's Yasuhide Uno and the Rise and Fall of Ventures' by Hiroshi Kodama

Deleted My Onamae.com Account

BigQuery Data Recovery Methods

Reading Notes: 'ALLIANCE'

Syncing Address Information from SmartHR API to Google Sheets with Google Apps Script

For Kumamoto-Nagoya Business Trips, I Prefer Taking the Shinkansen Over Flying

『Anker Magnetic Cable Holder』is recommended over『Anker 結束バンド式 ケーブルホルダー (Easy-Fastening Cable Holder)』

Purchased『MacBook Pro 14 インチ 2021年モデル (M1 Pro / M1 Max) 用 マグネット式 プライバシーフィルター』

Reading Notes『ネット興亡記 敗れざる者たち』(The Rise and Fall of the Internet: The Undefeated) by Takashi Sugimoto

Reading Notes『マンガでわかるソフトウェアテスト入門 テスターちゃん Vol.1』(Introduction to Software Testing with Manga: Tester-chan Vol.1) by Mineo Matsutani

Enabled DNSSEC on Cloudflare

Purchased PFU Keyboard HHKB Professional HYBRID Type-S English Layout / Charcoal

Reading Notes: NO HARD WORK! / 『NO HARD WORK!　無駄ゼロで結果を出すぼくらの働き方』

Xiaomi Mi Band 5 Smartwatch Review

Information Summary for Software Engineers Taking on Product Owner Roles

Domain Transfer from Onamae.com to Cloudflare Registrar

Reading Notes: PLG Product-Led Growth / 『PLG プロダクト・レッド・グロース「セールスがプロダクトを売る時代」から「プロダクトでプロダクトを売る時代」へ』

Fixing whois Command Character Corruption with nkf [macOS]

Creating GitHub Projects Draft Issues from CLI with gh projects item-create

Steps to Initialize iPhone for Transfer

Forward Email emails not reaching Gmail properly due to Delivery Status Notification errors

Switched prezto theme from pure to cloud after pure was removed

iPhone 14 has arrived

Solving ERR_TOO_MANY_REDIRECTS with Cloudflare + Nginx + WordPress by changing SSL/TLS to Full (strict)

Enable CLI and Terminal auto-completion with Fig

Reading Notes: 'Blitzscaling: The Lightning-Fast Path to Building Massively Valuable Companies (Interview)' by Reid Hoffman

[macOS] Rectangle App for Window Management with Keyboard Shortcuts

How to Handle Multi-line Strings and Newlines in GitHub Actions

Reading Notes: 'The Start-up of You' by Reid Hoffman

[Ruby on Rails] Solution for 'An error occurred while installing pg (1.4.5), and Bundler cannot continue.' [macOS Edition]

Managing Multiple Ruby Versions with asdf

How to Manage Nameservers for Domains Acquired from Onamae.com with Cloudflare

Compound Startup Insights Summary

Load Testing Tool k6 Beginner's Guide Summary

Reading Notes: 'REMOTE: Office Not Required' by Jason Fried and David Heinemeier Hansson, translated by Riko Takahashi

AWS Multi-Tenant SaaS Architecture Beginner's Guide Summary

Load Testing Tool k6 --compatibility-mode=base Sample Code

Tile Pro/Slim/Sticker Smart Tracker (Anti-Loss Tag) Review

How to Transpile ES6 to ES5 with webpack + Babel

Managing Multiple Go Versions with asdf

Reading Notes: 'Implementing the Future - Four Principles for Social Transformation Through Technology' by Takaaki Umada

Password Reset Required for First Root Account Login After Creating New Account in AWS Organizations

Product Strategy Development Practical Introduction - BtoB Edition

Reading Notes: 'Japanese Dream - E-Revolution Declaration by a 26-year-old Listed Company President!' by Susumu Fujita

Amazon WorkSpaces 'Unable to login' Error and 'Unhealthy' Status Troubleshooting

Automatic Japanese Text Transcription from Audio Files with whisper.cpp

Sample Module Code for Getting Amazon Cognito Access Token with k6 Load Testing Tool

GitHub ex-CTO Jason Warner and Monolith > Apps > Services > Microservices

Reading Notes: 'Amazon Web Services Load Testing Introduction - Understanding How to Draw Out Cloud Performance' by Narikawa Taruha

esbuild does not support transpiling to ES5

I bought a Spigen Pixel 7 case

Practical Introduction to Load Testing

Application for load testing of API / Web services built on AWS

I became the CTO and Director of ROUTE06 Inc.

Sample code to log into Amazon Cognito and get Access Token [CLI curl edition]

xk6-cognito verification -> Got errors and it didn't work

Reading Notes: 'Accelerate: The Science of Lean Software and DevOps - Building and Scaling High Performing Technology Organizations'

Managing Multiple k6 Versions with asdf

Commands to Enable yarn with asdf

I Purchased Google Pixel 7

PRD (Product Requirements Document) Japanese-English Translation Reference List

How to Share Google Drive Files as a Guest with Non-Google Account Email Addresses

Reading Notes: 'Team Topologies: Organizing Business and Technology Teams for Fast Flow'

Converting MOV to MP4 with Resizing Using FFmpeg

Recommended Books for New Employees

Recommended Books for Directors/Executive Officers/Management of Tech Startups

'Building Engineering Organizations at Rapidly Growing Mega Ventures [M3 × MonotaRO]' Event Report #エンジニア組織_findy

Using DefaultCredentialsProvider Instead of ProfileCredentialsProvider [AWS SDK for Java]

Resolving 'Resolved xxx which is not part of the dependency lock state' Error in ./gradlew build with ./gradlew resolveAndLockAll --write-locks

HUAWEI Band 7 Smartwatch Review

How to Update dependencies in build.gradle.kts and Reflect Changes to gradle.lockfile in Gradle

Reading Notes: 『Who You Are（フーユーアー）君の真の言葉と行動こそが困難を生き抜くチームをつくる』(What You Do Is Who You Are) by Ben Horowitz

Reading Notes: 『HIGH OUTPUT MANAGEMENT』by Andrew S. Grove

Reading Notes: 『エンジニアリング組織論への招待 ~不確実性に向き合う思考と組織のリファクタリング』(An Invitation to Engineering Organization Theory) by Hiroki Daichi

Reading Notes: 『爆速成長マネジメント』(High Growth Handbook) by Elad Gil

Get Twitter Followers/Following Count with Twitter API and Add to Google Sheets Sample Code - Google Apps Script (GAS) Edition

Server-side Kotlin + DGS framework + Exposed Practical Introduction

How to Load Environment Variables from .env File in IntelliJ IDEA

Reading Notes: 『ALL for SaaS SaaS立ち上げのすべて』(ALL for SaaS: Everything About SaaS Launch) by Miyata Yoshitaka

Setting Up Amazon WorkMail in iPhone Gmail App Configuration Steps

Managing Multiple Java Versions with asdf

Removed WordPress Plugin 'ShareThis Dashboard for Google Analytics' and Installed 'Site Kit by Google'

Coupons and the Act Against Unjustifiable Premiums and Misleading Representations

Managing Multiple Node.js Versions with asdf

Reading Notes: 『人月の神話』(The Mythical Man-Month) by Frederick P. Brooks, Jr.

Solution for Brother HL-L2375DW Stuck on 'Printing-Looking for printer' Issue on macOS

How to Install asdf [macOS Edition]

Event Sourcing Introduction

Set Up Email Sending and Receiving with Custom Domain Free Email Forwarding Service Forward Email

Articles and Books I Referenced for Setting Qualitative and Quantitative Goals

Download Twitter Spaces Audio Files with twspace-dl

QR Code Generation Command: qrencode

Remove Password from PDF Files with qpdf Command

Reading Log: 'Smartphone Brain' by Anders Hansen

Reading notes from 'Smartphone Brain' by Anders Hansen. A compilation of thoughts on smartphone addiction at work and smartphone education for children.

How to Find Amazon Pay Prohibited Business Categories and Products

Reading Notes: 『岩崎弥太郎と三菱四代』(Iwasaki Yataro and Four Generations of Mitsubishi) by Kawai Atsushi

Product Vision Development: A Practical Introduction

Terraform REPL Feature Available with terraform console

[macOS] Code Management of Homebrew Installations with Brewfile

Resolved tfenv install Error with brew install grep

When Duplicate Records Appear in Results, Suspect LEFT JOIN / INNER JOIN

Reading Notes: 『絶望しきって死ぬために、今を熱狂して生きろ』(To Live Passionately Now in Order to Die in Complete Despair) by Kenjo Toru

APN Settings to Use Rakuten Mobile on Android OnePlus 6T

I Canceled NURO Mobile

How to Cancel Onamae.com Email Service

Cloudflare Pages Redirect from www to Root Domain

AWS Session Manager Plugin Installation Method [macOS Monterey 12.4 Edition]

Amazon OpenSearch Service Scale-up Does Not Cause Downtime

Syncing VSCode Settings Across Multiple PCs

Completely Delete and Make Private Sites Published on Firebase Hosting

Reading Notes: 'Enterprise System Design That the Web Generation Doesn't Know' by IT Study Banquet / 『Web世代が知らないエンタープライズシステム設計』IT勉強宴会（著）

List of Items Obtainable from Apple Pay Billing Address

Reference Information for Developing SaaS on AWS

How to Install GIMP [macOS Edition]

Zsh Framework prezto Installation and Configuration

fish shell Uninstallation Steps [macOS Edition]

WP Mail SMTP Authentication Gmail Password Uses Google App Password

Creating and Managing SSH Keys with 1Password

fish shell Installation Steps [macOS Edition]

Dropbox CLI dbxcli Installation and Initial Setup [macOS Edition]

macOS Monterey 12.4 System Preferences Memo [May 2022 version]

Bulk Download Entire Website with wget Command [Linux]

Shopify Password Policy

[Linux] Sample Code to Retry Shell Commands Until Success

VSCode markdown-pdf: Header, Footer Template Configuration Sample Code

Reading Notes: 'The Boundaries of Harassment: Men Confused by Sexual and Power Harassment' by Momoko Shirakawa / 『ハラスメントの境界線　セクハラ・パワハラに戸惑う男たち』白河桃子（著）

How to Fix VSCode markdown-pdf: Export Error

How to Generate Table of Contents (TOC) in Markdown with VSCode

Google Data Studio Introduction Books

How to Exclude Access to Specific Pages in Google Analytics

ESG, SDGs Introduction, Criticism, and Recommended Books

How to Fix 'googleads.g.doubleclick.net took too long to respond.'

Sample Code for Adding/Removing Customer Tags with Shopify REST Admin API - Google Apps Script (GAS) Edition

Implementing Limited Sales and Access Restrictions with Shopify App 'EasyLockdown'

Sample Code for Email Customer Search with Shopify REST Admin API - Google Apps Script (GAS) Edition

Sample Code for Using Shopify REST Admin API from Google Apps Script (GAS)

Search Like SQL with Spreadsheet + Google Apps Script (GAS) + QUERY Function

Reading Notes: 'Process Economy: Your Story Becomes Value' by Kazuhiro Obara / 『プロセスエコノミー　あなたの物語が価値になる』尾原和啓（著）

Google Data Studio Blended Data Not Recommended for Production Environment

Shopify Cart Addition and Checkout Inventory Allocation Verification Results

Reading Notes: '稼ぐ人が実践している お金のPDCA' (Money PDCA Practiced by High Earners) by Kazumasa Tomita

How to Manage Discontinued Products in Shopify

Shopify POS Inventory Allocation When Adding Products to Cart: Verification Results

Reading Notes: '起業の失敗大全――スタートアップの成否を決める６つのパターン' (The Complete Guide to Startup Failures: Six Patterns That Determine Success or Failure) by Tom Eisenmann

Images Over 20 Megapixels Disappeared When Uploaded via Shopify GraphQL Admin API

Solution for Google Apps Script 'Exception: 1 日にサービス premium gmail を実行した回数が多すぎます。' (Too many executions of premium gmail service per day)

How to Delete Google Workspace Organization Accounts

Batch Output Amazon Receipts with 'Amazon Order History Filter' and Split with pdfseparate Command

Switching Onamae.com Name Servers from dns01.gmoserver.jp to 01.dnsv.jp Broke POP/SMTP Server Connection

Purchased iPhone SE 2nd Generation 64GB Amazon Renewed for Development Testing

How to Install dbt CLI [macOS Edition]

Shopify Gift Wrapping App 'Wrapped' Verification Log

Reading Notes: '起業家の思考法――「別解力」で圧倒的成果を生む問題発見・解決・実践の技法' (Entrepreneur's Thinking Method: Problem Discovery, Solution, and Practice Techniques for Overwhelming Results through 'Alternative Solution Power') by Takeshi Hirao

Solution for Shopify "Google requires you to add refund policy and terms of service to the footer of your store."

How to Write Incident Reports and Recurrence Prevention Plans

Reading Notes: '世界は贈与でできている　資本主義の「すきま」を埋める倫理学' (The World is Made of Gifts: Ethics to Fill the 'Gaps' in Capitalism) by Yuta Konuchi

Shopify App 'Super Gift Options' Verification Log

Microsoft Outlook URL Character Limit: 1024 Characters

Reading Notes: 'ＮＯＩＳＥ　組織はなぜ判断を誤るのか？' (NOISE: Why Organizations Make Wrong Decisions) by Daniel Kahneman

How to Integrate Slack and GitHub for Automatic Repository Issue and Pull Request Notifications

Explains how to integrate Slack and GitHub to automatically notify about repository issues, pull requests, and other changes.

How to Use Onamae Email with IMAP

Onamae Email MX Record TTL Cannot Be Changed with Default Name Servers

Recommended SEO Beginner Books and Reading Order ~ 'Silent Web Marketing/Writing' -> 'The Kindest New SEO Textbook'

Shopify URL Parameter Reserved Words and Namespace Usage

Reading Notes: 'リーダーの仮面――「いちプレーヤー」から「マネジャー」に頭を切り替える思考法' (The Leader's Mask: How to Switch from 'Player' to 'Manager' Mindset) by Hirohiro Ando

How to Check Differences Between Shopify API Versions

Reading Notes: 『ファンベース　─ 支持され、愛され、長く売れ続けるために』(FanBase: To Be Supported, Loved, and Continue Selling Long-term) by Naoyuki Sato

How to Subscribe to Auth0 Status Page status.auth0.com RSS

EC Product Sales End Operations [Shopify + Logikura Edition]

Summary of Shopify Fraudulent Order Countermeasures

Reading Notes: 『いちばんやさしい新しいSEOの教本 第2版 人気講師が教える検索に強いサイトの作り方［MFI対応］』(The Easiest New SEO Textbook 2nd Edition: How to Build Search-Strong Sites as Taught by Popular Instructors [MFI Compatible]) by Hiroshi Yasukawa

Smaregi 'Transaction History CSV Download' Function Can Be Used with [Transaction History Function All] Permission Setting

Registering for Onamae.com's Onamae Mail and Initial Setup

The Cheapest Domain for Initial Year and Renewal Fees at Onamae.com is .com

Reading Notes: 『小さな会社がITエンジニアの採用で成功する本　自社にピッタリの人材がみつかる』(A Book for Small Companies to Succeed in IT Engineer Recruitment: Finding the Perfect Talent for Your Company) by Kenichiro Yamato

Reading Notes: 『クリエイティブ人事～個人を伸ばす、チームを活かす～』(Creative HR: Growing Individuals, Leveraging Teams) by Tetsuto Soyama

How to Solve the Issue Where Firebase Hosting's Preview Channel Function Doesn't Work Due to Basic Authentication in Cloud Functions

Reading Notes: 'Managers Must Not Flee to Profits' by Susumu Fujita

Setting Smaregi 'Credit Manual Input' Function to OFF

Reading Notes: 'Career Change 2.0: New Rules for Japanese Career Development' by Shin Murakami

Send Shopify New Order Notifications to Slack [Zapier Edition]

Google Data Studio Cannot Share Groups Containing @gmail.com When 'Restrict Sharing Outside Trusted Domains' is Enabled, Even with 'Share with Specific Users or Groups'

Reading Notes: 'Genius of Entrepreneurship! Hiromasa Ezoe: The Man Who Created the 8 Trillion Yen Company Recruit' by Yasuyuki Onishi

RubyGems.org New Registration and Initial Setup (MFA)

Reading Notes: 'The Young Talent Development Textbook: CyberAgent's "Promotion Method" for Growing People' by Tetsuto Soyama

Reading Notes: 'Working with Others: Organizational Theory Starting from Inability to Understand Each Other' by Motokazu Udagawa

Set Google Ads Account Type to 'Organization' When Creating for Company Use

Creating MCC Account and Initial Setup to Start Google Ads Agency

Computer Shipping, Delivery, and Distribution Methods

Fire HD Kids Model Amazon Kids+ Initial Setup and Recommended Time Limit Settings

Reading Notes: 'Let's Talk About Failures. What We Learned by Pushing Forward Through 'Not Knowing Anything'' by Yosuke Tsuji

Apache Log4j Vulnerability and Elasticsearch

Data Migration from OnePlus 6T to Google Pixel 6

Reading Notes: 'Think Honestly and Thoroughly' by Mitsunobu Okada

How to Create Access Keys for AWS IAM PowerUser

I Purchased Google Pixel Buds A-Series

Reading Notes: 'Sustainable Capitalism: How 5% of 'Thoughtful Consumption' Changes Society' by Masanori Murakami

Using Facebook Business Manager's 'Ad Account Partner' Feature for Facebook/Instagram Ad Management Services

Internal Interview Notes Related to Software Engineer Hiring

Reading Notes: 'Practical Startup Finance: Capital Policy Post-Mortem' by Yu Yamaoka

Project Management Tool Backlog Plan Comparison

Project Management Tools with Unlimited Users and Flat Rate Pricing

Reference Information for Building Mall-type EC Sites with Shopify

Solution for oh-my-zsh 'The `osx` plugin is deprecated and has been renamed to `macos`'

Sentry Organization and GitHub Organization Can Connect 1:n

Sleep Prevention Mac App 'Amphetamine'

Mac App 'ZIPANG' for Extracting and Compressing ZIP Files Without Character Corruption

Reading Notes: 'Trinity Management: Management That Enriches Managers, Employees, and Shareholders Together' by Koji Nakagami

Setting Up CD and Preview Environments with Firebase Hosting + GitHub Actions

How to Contact Facebook Business Manager Support Team (Chat & Email)

Reading Notes: 'Visionary Company ZERO: Creating Business from Scratch and Becoming a Great and Enduring Company' by Jim Collins

Reading Notes: 'New Edition: Lanchester Strategy - The Underdog Reversal Law: How Small Companies Can Win and Become Profitable' by Masafumi Fukunaga

Books Read by a Startup Engineer-CEO to Create a Business Plan

Reading Notes: 'Never Say You Can't. Think About How After You Say You Can' by Dai Tange

Applying Credits to Accounts Under AWS Organizations

How to Send Google Cloud Billing Alerts to Slack

Reading Log: 'ゼロから始めるプロダクトマネジメント (Starting Product Management from Scratch)' by Mizuki Tanno

Mixpanel Pricing Cost Reduction Proposal

Reading Notes: 'Where Entrepreneurs Go Wrong — 9 Dilemmas Every Startup Must Face' by Noam Wasserman

How to Fix 'An error occurred while installing mysql2 (0.5.3), and Bundler cannot continue.' in bundle install

How to Fix Fastify 'Unsupported Media Type: application/x-www-form-urlencoded'

Technical Verification of LINE URL Scheme

Reading Notes: 'Think Big, My Way: The Masayoshi Son Story - Definitive Edition' by Atsuo Inoue

Using IAM Roles in GitHub Actions Without Passing AWS Credentials Directly

International Press Release Distribution Services and Blog Media [2021 Edition]

Reading Notes: 'D2C: Brand Strategy to Win with "Worldview" and "Technology"' by Yasuhiro Sasaki

macOS Copy-Paste Extension App Clipy

[AWS] Moving from Private Subnet to Public Subnet to Reduce NAT Gateway Costs

Reading Notes: 'Purpose: The "Meaningful" Economy and Beyond' by Hironori Iwasaki and Yasuhiro Sasaki

How to Check TinyMCE Usage and What Happens When Exceeded

Resolving Node.js Timezone Issues with Environment Variable TZ=utc ~ production: UTC vs development: JST

Reading Notes: 'Instagram: The Truth Behind the Wild Ambition' by Sarah Frier

How to Redirect to Different Domains/URLs with Google Tag Manager + location.href

Sample Code for Loading Avro Files to BigQuery with Cloud Storage + Cloud Functions

How to Set Up Custom Domain Email Addresses with Amazon WorkMail

How to Create a Data Pipeline to Transfer Data from Mixpanel to Google BigQuery

AWS Lambda Sample Code to Delete Specific Files Uploaded to S3

How to Investigate Amazon ECS Task Stop Reason 'Essential container in task exited'

How to Search and Delete Specific Documents in Elasticsearch [curl Edition]

How to Configure Amazon S3 to Allow Uploads of Only Specific File Types (Extensions)

Reading Memo: 'Dan Kogai's Meeting with Alpha Geeks WEB+DB PRESS plus' by Dan Kogai

How to Create AWS Lambda Layers with node_modules and Add Them to Lambda Functions

How to Install Google Cloud SDK [macOS Edition]

Amazon S3 AccessDenied Error with Only arn:aws:s3:::bucket Setting

How to Hide TinyMCE 'POWERED BY TINY'

Migrated from Evernote to Google Keep

Reading Memo: 'Creating Management Teams that Co-create the Future' by Yoshiyuki Suzuki

Amazon SES Initial Setup Reference Articles Summary

Reading Memo: 'President Shino's Management School: Trade-off Balance Multiplies Results by 10' by Takaya Shinozuka

How to Configure AWS Default Security Group to Not Allow All Traffic (CIS 4.3 Compliance)

Auth0 Custom Domain DNS Record Reflection Time is About 5 Minutes

Reading Memo: 'Keep Asking Until You Break Through: The Trajectory of Struggles, Efforts, and Growth of Giant Startup Visional' by Satoshi Ebitani

MySQL Query to Check Data Size of DB and Tables

The MIME Type for .msg File Extension is application/vnd.ms-outlook

JavaScript Bug When Using Array.sort() on Numeric String Formats

Day.js Time Zone Support Sample Code: How to Use dayjs.tz()