Coding

Pragmatic notes on developer tools, languages, and workflows. Shortcuts, tricks, and lessons from actually shipping code.

FastAPI webhook bot: GitHub and Gitea automation

Build a Python FastAPI bot for GitHub and Gitea webhooks. Covers verification, routing, auto-labeling, PR enforcement, one codebase for both.

Rust for Python developers: rewrite your hot paths for 10x speed

Escape Python's GIL by rewriting CPU-bound hot paths in Rust via PyO3. Profile bottlenecks, build Rust extensions, and integrate them very seamlessly.

Run SQLite in production with WAL mode and live backups

SQLite in production works for single-server apps: WAL mode, the right PRAGMAs, one writer, live backups, and the limits that force a move to Postgres.

Simple feature flags you can maintain without paying LaunchDarkly

LaunchDarkly cost in 2026 for a real five-engineer team, priced against ConfigCat, Unleash and Flagsmith, plus a 100-line DIY feature flag SDK.

Build powerful TUI apps in Python with Textual and Rich

Build professional terminal UIs with Textual: a Python framework with CSS styling, reactive widgets, and async events for dashboards and dev tools.

Python Memory Optimization: 50-80% Reduction with memray

Profile and optimize Python memory with memray, tracemalloc, and objgraph. Covers leak detection, generators, __slots__, and cutting peak use.