Open source

This site exists because of open-source software. These are the projects doing the heavy lifting, with our thanks to their maintainers.

Framework & runtime

Next.jsMIT— the application framework — routing, rendering, caching
ReactMIT— the UI runtime
sharpApache-2.0 (bundles libvips, LGPL-3.0)— server-side processing of book cover images

Design & interface

Tailwind CSSMIT— all styling
shadcn/ui & Radix UIMIT— accessible interface components
LucideISC— icons
sonnerMIT— toast notifications
next-themesMIT— light and dark mode
Styling utilitiesMIT / Apache-2.0— class composition helpers (cva, clsx, tailwind-merge, tw-animate-css)

Content & data

Drizzle ORMApache-2.0 / MIT— the database layer and migrations
Neon serverless driverMIT— Postgres connections
react-markdown & remarkMIT— rendering blog posts and descriptions
ZodMIT— validating every form and payload
Papa ParseMIT— CSV catalog import tooling

Platform SDKs

Clerk (Next.js SDK)MIT— the open-source SDK for our sign-in service
Vercel SDKsMIT / Apache-2.0— analytics and cover-image storage

Typefaces

FrauncesSIL OFL 1.1— headings (by Undercase Type)
Geist & Geist MonoSIL OFL 1.1— body text and code (by Vercel)

Tooling

TypeScriptApache-2.0— the language everything is written in
ESLintMIT— keeping the code honest

Beyond this list, the site stands on more than 990 packages across the wider npm ecosystem. To everyone maintaining any of them: thank you.