const sites = await fetchSites({ live: true })sites.filter(isLive).map(renderCard)await kv.put(`votes:${key}:up`, String(next))export default function Home() { ... }npm run validate:content && npm run typecheckgit commit -m "ship it" && git pushif (prefersReducedMotion) return nullcurl -s https://base31.org/sitemap.xml | headaddEventListener("push", (event) => show(event))serve(public/sites/example/index.html)

tag

math

2 picks in the directory carry this tag, out of 225 tags in all. Each one links to its own page with the full description and vote controls.

DesmosCool appsA graphing calculator that plots equations as you type them, with sliders to watch a curve respond in real time.
Added · 2026-09-30Not yet reviewedVisit ↗
GeoGebraCool appsInteractive geometry, algebra and calculus tools that started as classroom software and stayed free for everyone.
Added · 2026-09-30Not yet reviewedVisit ↗

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