A small web app for trying Caster from a GitHub link. One page at /, a health check at /healthz, and no dependencies.
It fits what Caster builds today: a Dockerfile at the root, listening on port 8080, running as a numeric non-root user, on a base image that has an arm64 build.
Run it yourself with npm start (Node 22 or later), then open http://localhost:8080.