Adobe Commerce Feature Map and Integration Options Are Helpful References

Adobe Commerce's feature map and integration options pages made a handy reference for a SaaS overview diagram.

Comparison Information for AWS Batch and Job Services - AWS Batch, Lambda, ECS Task

Reference articles and decision notes for choosing between AWS Batch, Lambda, and ECS Task for batch jobs.

AWS Multi-Tenant SaaS Architecture Beginner's Guide Summary

A curated list of beginner resources for AWS multi-tenant SaaS architecture.

AWS Account Management Policy Comparison - AWS Organizations vs IAM Switch Role

Pros and cons of AWS Organizations vs IAM Switch Role for managing multiple AWS accounts.

Reference Information for Developing SaaS on AWS

Reference links — SaaS Lens and the builders.flash SaaS on AWS series — for developing SaaS on AWS.

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）

Reading notes on enterprise system design from a web-generation engineer's perspective.

Book Review: Insights from 'A Not-So-Boring Future Found in Estonia, Leading the Way with Blockchain and AI'

Takeaways from Estonia's e-government — X-Road and the idea that data preservation is enough to rebuild a nation — applied to software design.

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.

Reference Information Summary for Explaining Dependency Injection (DI)

A small link collection I lean on when explaining DI and DI containers to teammates.

Event Sourcing Introduction

A collection of references that helped me learn about Event Sourcing.

[Heroku] Architecture components and request flow

Pointer to a helpful diagram of Heroku's architecture components and request flow.

i18n Multilingual support management methods ~ Comparing advantages and disadvantages of Language files and Template files

Trade-offs of language-file versus per-language-template approaches for i18n multilingual support.

Collection of Helpful Articles for Understanding and Implementing Idempotence in Design

A curated reading list on idempotence — concept, design patterns, REST/HTTP, and shell scripting.

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

GitHub ex-CTO Jason Warner's thread on the Monolith > apps > services > microservices architecture spectrum.

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.

Introduction to Leaky Bucket Algorithm

Notes and reference links on the leaky bucket algorithm used by Shopify API and PAY.JP.

Security of Limited Access URLs and Basic Authentication

Comparing limited access URLs and Basic authentication for exposing pages to specific end users.

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.

On-Premise vs Cloud Decision Criteria

Decision criteria between on-premise and cloud from a cost perspective, with Dropbox's AWS repatriation as a case study.

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

In-house book club notes on 'Introduction to Modern Applications with AWS' — a solid overview of AWS service choices.

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

Notes from 'Team Topologies' on cognitive load, team APIs, and the four team types and three interaction modes.

Reading Notes: 'Infrastructure Design Theory - From Requirements Definition to Operations and Maintenance'

Reading notes on 'Infrastructure Design Theory', covering non-functional requirements grades, availability, and ops design.

Benefits and Drawbacks of Separating API Servers

Notes on the pros and cons of splitting API servers between a toC SPA and an admin (toE) SPA.

Policy to Define URL String Maximum Length Validation at 2,000 Characters

Why I set URL string validation to a maximum of 2,000 characters based on RFC and vendor guidance.

Considering the Impact and Response Strategy for URL Refactoring

Impact areas and response strategies to consider when refactoring URLs, including 301 redirects.

USPS Tracking Numbers are Recycled and Not Unique Values

Why treating USPS tracking numbers as unique values is dangerous — they get recycled after delivery.