Guides
Short reads that sit next to the tools.
01 · 9 min
JWTs in practice: RFC 7519 without the hand-waving
How JSON Web Tokens are structured, which claims matter, why alg none is dangerous, and how to inspect tokens without leaking them to a hosted debugger.
02 · 7 min
UUID v4 vs v7: randomness, indexes, and when to switch
A practical comparison of UUID v4 and UUID v7 for primary keys, sort order, privacy of timestamps, and database index locality.
03 · 8 min
Typing JSON in TypeScript: samples, Zod, and trust boundaries
Why inferred interfaces from sample JSON are a starting point, not a contract, and how Zod (or another parser) belongs at every trust boundary.
04 · 6 min
Why developer tools should run in your browser
The privacy, latency, and AdSense-era content problem of hosted utilities — and how a static, client-side suite avoids uploading secrets.
Need a hosted HTTP API instead? Browse API guides.