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Appesto Engineering

Practical articles, technical guides, tutorials, development notes, research, and insights covering software engineering and emerging technologies.

Announcements July 14, 2026

Select text anywhere - Word, Chrome, Outlook, Slack - press a hotkey, and it's rewritten in place by the AI…

AI July 14, 2026

You don't need a dedicated vector database for semantic search. pgvector turns Postgres into a vector store — here's the…

DevTools July 13, 2026

EADDRINUSE: address already in use is the most common dev-server error there is. Here's how to find and kill the…

Security July 12, 2026

Passwords are finally on their way out. What we learned rolling out passkeys across a multi-product platform: enrollment flows, fallback…

Database July 11, 2026

Each serverless invocation opens a new DB connection. At scale, this exhausts Postgres in seconds. PgBouncer, Neon's pooler, and the…

AI July 10, 2026

Model Context Protocol went from Anthropic side-project to industry standard in eighteen months. What building an MCP server for a…

Database July 9, 2026

JWTs are not safer than sessions. Sessions are not simpler than JWTs. The right choice is determined by your deployment…

Webpack July 8, 2026

Loaders are just functions that transform source text. We build a real one - a loader that inlines SVGs as…

Design Systems July 7, 2026

You don't install shadcn/ui — you own the code. Two years in, the model has won. Here's how to use…

Tooling July 5, 2026

Hono is under 12kB, zero dependencies, and runs identically on Cloudflare Workers, Bun, Deno, and Node. Here's why it's become…

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