Guides, tips, and best practices for shipping faster. 11 articles across 2 categories, updated weekly.
What a bearer token is, the exact Authorization header syntax, how to send one from curl, fetch, axios, and Postman, how bearer tokens differ from API keys and JWTs, and how to generate signed test tokens in your browser.
GuideEvery manifest.json key explained: the three required fields, UI surfaces, service workers, content scripts, the three-way permission model and the install warnings it triggers, plus the exact MV2 to MV3 migration map now that Manifest V2 is fully gone.
GuideYour form is a suggestion; your endpoint is the contract. A practical guide to securing contact forms, newsletters, comments, and feedback endpoints: server-side validation, email header injection, honeypots and rate limiting, anchored origin checks, client-supplied identity, and double opt-in.
GuideDecoding a JWT and verifying one are not the same operation, and only one proves anything. A practical guide to the three Base64url parts, the alg attacks that breached real systems, correct verification with jose, claim validation, and safe client storage.
GuideA practical, honest guide to Generative Engine Optimization. The technical hygiene that gets you into AI answers, what an llms.txt actually does in 2026 (less than the hype), how to structure pages for extraction, and a checklist ordered by payoff.
GuideTailwind v4 is a ground-up rewrite. The upgrade tool handles most of it, but the CSS-first config, the renamed utilities, the rebuilt dark mode, and the browser-support floor are where teams get stuck. Exactly what changed and how to move across cleanly.
GuideBase64 is the format that won't go away — JWTs, OAuth, data: URIs, Basic Auth all still depend on it. The 2026-era APIs (Uint8Array.toBase64), URL-safe vs standard alphabet, and the UTF-8 traps that have shipped with btoa() for two decades.
GuideTime-ordered UUIDs (v7) trade a small bit of randomness for major database performance gains. Concrete tradeoffs, B-tree implications, decision matrix, and migration guide.
GuideAuto-generate TypeScript types from JSON, then refine them. Real-world traps with optional fields, discriminated unions, snake_case mapping, and runtime validation with Zod.
GuideWebP saves 25-35% over PNG at visually identical quality and is supported everywhere that matters in 2026. Three workflows: browser, CLI, and build-time integration.
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