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- FA black-and-white design system, on purpose
The interface has no accent colour. Links, active states and primary buttons are all the same nearblack. That is a deliberate constraint, no…
- OSelf-hosting Supabase on 2 vCPU
The whole stack — Postgres, the API layer, auth — runs on a twocore box with 2 GB of RAM. That is not a brag; it is mostly a consequence of …
- Di18n: middleware rewrite instead of /[locale] routes
The site serves Chinese and English. The obvious implementation is /[locale]/... routes. We chose a middleware rewrite instead, and it has a…
- FForty tools, one page bundle
There are around forty tools on the site, and the initial JavaScript payload is deliberately small. Three decisions got it there. Tools load…
- DRendering PDFs off the main thread
The PDF tools use pdf.js, which by default parses on the main thread. On a 300page document that means the tab stops responding for seconds …
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