Add Docker support#78
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Adds a Dockerfile, docker-compose.yaml, and .dockerignore for running Estrella as a container. The image is not published; build it locally with `docker compose build`. The Dockerfile uses a multi-stage build: a Node stage compiles the frontend, a Rust stage builds the binary, and a minimal debian:trixie-slim runtime stage produces the final image. Built with --no-default-features to avoid the libheif ≥ 1.21 requirement. The serve command accepts PRINTER_DEVICE and LISTEN_ADDR as environment variables (in addition to CLI flags) for container-friendly configuration. PRINTER_WIDTH is documented in docker-compose.yaml and also accepted as an env var (added in the companion configurable-width change). README gets a Docker section covering build, Bluetooth setup, docker compose usage, environment variables, and persisting the RFCOMM binding across reboots with a systemd unit. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Timestamps in printed receipts use the system clock. Without TZ set the container defaults to UTC; add it as a commented example so it's easy to configure without rebuilding the image. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Adds a
Dockerfileanddocker-compose.yamlfor running estrella in a container.The compose file documents how to pair the Bluetooth printer on the host and bind the RFCOMM device before starting the container, and passes
/dev/rfcomm0through as a device.Also adds a
TZenvironment variable so the receipt timestamp reflects the correct local time.🤖 Generated with Claude Code