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What is opencode ── An Open-Source AI Coding Agent for the Terminal
Terminal-based AI coding tools are multiplying fast. GitHub Copilot, Cursor, Claude Code, Aider… they all share the same idea — call an LLM from the terminal or editor and edit code — but their design choices differ significantly. opencode is an open-source AI coding agent published in 2025 by the SST (Serverless Stack) team. TUI (Text User... Read More
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What Is Black for Python? — Automating Code Formatting in AI-Native Development
When AI writes Python code, style differences can easily appear within the same project: Single and double quotes become mixed Function arguments are packed onto one line Line breaks and whitespace differ from file to file Unrelated formatting changes appear whenever a human or AI edits the code Because the code still runs, these iss... Read More
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What is OpenAPI? — Making API Specs Readable by Humans and Machines Alike
Anyone who has worked on API development has run into these situations: “The parameter name doesn’t match” or “the response shape changed” keeps happening between frontend and backend Manually keeping Postman collections up to date is exhausting API specs were written in a doc, but have drifted from the actual code You want to expose a... Read More
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Why Choose Vercel for the Frontend? — Comparing Netlify and Cloudflare Pages (2026)
In the backend selection article, I summarized the frontend choice as simply Frontend → Vercel, but there are specific reasons behind that decision. Frontend hosting is now largely a three-way contest between Vercel, Netlify, and Cloudflare Pages, each with different tradeoffs. This article compares them using information current as of June 202... Read More
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Supabase vs Railway vs Neon — Choosing a Backend for an AI-Native Logging App (2026)
I’m building an AI-native logging app as a personal project. While evaluating backend options, I found myself torn between Supabase and Railway — and soon Neon and PlanetScale entered the picture as well. This post organizes the latest information as of June 2026 to compare the characteristics, pricing, and use cases of each service. First, ... Read More
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The Complete Guide to PostgreSQL JSONB — Flexible Schemas and Fast Queries
When requirements include “store data before the schema is finalized” or “handle structures whose fields change dynamically,” PostgreSQL’s JSONB type is often a strong option. This article provides a systematic guide to JSONB, from the fundamentals to practical queries, index design, and performance characteristics. JSON vs JSONB — What Is t... Read More