Technical writing by Shadiul Huda — systems, frontend, and building a second brain that rewrites itself.https://shadiul.github.io/https://shadiul.github.io/blog/a-gitignore-entry-silently-broke-my-css/https://shadiul.github.io/blog/a-gitignore-entry-silently-broke-my-css/Tailwind v4 reads your .gitignore to decide what to scan. One broad ignore pattern excluded real source dirs, so my styles never compiled.Sun, 12 Jul 2026 00:00:00 GMThttps://shadiul.github.io/blog/generating-og-images-at-build-time-with-astro/https://shadiul.github.io/blog/generating-og-images-at-build-time-with-astro/A per-page OG image endpoint rendering with satori and resvg at build time, seeded for reproducible builds — plus the font-path bug that cost me an afternoon.Sun, 12 Jul 2026 00:00:00 GMThttps://shadiul.github.io/blog/is-your-knowledge-base-actually-retrievable/https://shadiul.github.io/blog/is-your-knowledge-base-actually-retrievable/A knowledge base you can't search is a diary. I built an eval harness that scores recall@k and MRR against my real search engine, and the baseline humbled me.Sun, 12 Jul 2026 00:00:00 GMThttps://shadiul.github.io/blog/moving-shadcn-from-radix-to-base-ui/https://shadiul.github.io/blog/moving-shadcn-from-radix-to-base-ui/shadcn flipped its default primitives from Radix to Base UI. Here's the migration, and the one API change that actually matters — asChild becomes render.Sun, 12 Jul 2026 00:00:00 GMThttps://shadiul.github.io/blog/never-overwrite-a-fact-bi-temporal-notes/https://shadiul.github.io/blog/never-overwrite-a-fact-bi-temporal-notes/When a role or status changes, I don't delete the old value. I append to a timeline that tracks when it became true and when my notes learned it.Sun, 12 Jul 2026 00:00:00 GMThttps://shadiul.github.io/blog/react-19-will-suspend-on-your-stylesheets/https://shadiul.github.io/blog/react-19-will-suspend-on-your-stylesheets/React 19 treats precedence stylesheet links as Suspense resources. Render one inside your tree and the whole thing can blank. Here is the rule I landed on.Sun, 12 Jul 2026 00:00:00 GMThttps://shadiul.github.io/blog/second-brain-that-rewrites-itself/https://shadiul.github.io/blog/second-brain-that-rewrites-itself/Most note apps are filing cabinets. I wanted one that thinks — where new information rewrites old pages, contradictions get reconciled, and agents tidy up while I sleep.Sun, 12 Jul 2026 00:00:00 GMThttps://shadiul.github.io/blog/shipping-shadcn-with-zero-javascript/https://shadiul.github.io/blog/shipping-shadcn-with-zero-javascript/shadcn is React, but in Astro it can server-render to static HTML and ship no JS at all — until you opt a component into hydration. Here's the catch.Sun, 12 Jul 2026 00:00:00 GMThttps://shadiul.github.io/blog/tailwind-v4-monorepo-the-source-youre-missing/https://shadiul.github.io/blog/tailwind-v4-monorepo-the-source-youre-missing/Tailwind v4 auto-scans the project it lives in and quietly skips your sibling workspace packages. Here's why shared UI classes vanish, and the one-line fix.Sun, 12 Jul 2026 00:00:00 GMThttps://shadiul.github.io/blog/the-vite-version-that-silently-broke-my-dev-server/https://shadiul.github.io/blog/the-vite-version-that-silently-broke-my-dev-server/Production built clean. Dev 500'd on every transform with a cryptic Missing field moduleType error. The culprit was a version my lockfile hoisted unasked.Sun, 12 Jul 2026 00:00:00 GMThttps://shadiul.github.io/blog/writing-notes-for-a-machine-to-read/https://shadiul.github.io/blog/writing-notes-for-a-machine-to-read/My notes have one primary reader, and it isn't me. Here's what changes when you write your second brain AI-first instead of human-first.Sun, 12 Jul 2026 00:00:00 GMT