EXPOSE 8080 in the image, publish 8080 in compose, document http_addr in the
example config, and add the CPU/memory limits so a long encode can't starve
the host.
Multi-stage build (cgo for the SQLite logger) on debian-slim with ffmpeg,
opus-tools, and ca-certificates bundled. Compose mounts ./data/config.yaml
and ./data/media; SIGTERM cancels in-flight encodes cleanly.
Esa Kataja