ClojureWasm Bookshelf

A small multi-user bookshelf served end to end by ClojureWasm (cljw), a Clojure runtime written in Zig, with no JVM. Anyone can browse every shelf; signing in with Google gives you a shelf of your own. SQLite and the book-cover colours run in-process through cljw's WebAssembly FFI: no external database, no JVM, no Babashka.

Live at https://cljw.buddhilw.com/bookshelf/.

What's inside

• Frontend (src/, ClojureScript + shadow-cljs): the SPA. The optimized release bundle is committed at resources/public/js/main.js.
• Backend (server/, ClojureWasm): bookshelf.server serves the SPA and an EDN API; bookshelf.db talks to SQLite via (wasm/run "wasm/sqlite3.wasm" ...); bookshelf.cover computes cover colours via a Rust Wasm module; bookshelf.auth verifies Google ID tokens.
• Wasm modules (wasm/): SQLite (vendored amalgamation plus a first-party wrapper) and a hand-written Rust cover-colour module. Origins in PROVENANCE.md.
• Storage: data/books.db, created and seeded on first run.

Run it

./run_local.sh                # fetches the pinned cljw release once, serves http://localhost:8090

Or as a container:

docker run --rm -p 8080:8080 -v bookshelf-data:/app/data ghcr.io/clojurewasm/cw-serverless-demo:latest

GOOGLE_CLIENT_ID is optional. Without it the app is browse-only. Container, Kubernetes and sign-in details are in DEPLOY.md.

License

See the ClojureWasm project for runtime licensing. Demo sources here are provided as-is for illustration.