phomemer

Docker container

Note: it's important to run with --net=host. This allows the container to access bluetooth devices. Sadly, this will most likely only work under linux.

docker run -e PHOMEMO_BT_MAC=<your-printers-mac> --net=host -it ghcr.io/b4ckspace/phomemer

USB connection

Instead of Bluetooth, you can also connect to your printer via USB.
This should create a character device at /dev/usb/lp0 (or a higher number). You can pass this character device into the Docker container and omit the PHOMEMO_BT_MAC setting to make phomemer use the USB connection. (PHOMEMO_BT_MAC takes precedence over USB if it is specified!).

This requires that the Docker user has sufficient permission to write to /dev/usb/lp0 — assign the correct group membership or modify the character device's permissions through a udev rule if not.

--net=host is still required here to allow you/your users to access phomemer through a well-known port on the Docker host's localhost.

docker run --device '/dev/usb/lp0:/dev/phomemo' --net=host -it ghcr.io/b4ckspace/phomemer

Docker compose

1. Copy .env.dist to .env and enter your printer address, with colons

(Without colons it will fail, ERROR 500)

docker compose up

Local Development

PHOMEMO_BT_MAC=<your-printers-mac> poetry run flask \
  --app phomeme:app run \
  --debug --host 0.0.0.0 --port 8000

Production

PHOMEMO_BT_MAC=<your-printers-mac> poetry run gunicorn -w 1 'phomeme:app' -b [::0]

Usage

Visit the awesome frontend on http://localhost:8000 or send via curl using curl -v -F [email protected] localhost:5000/print.

Credits

The print code is inspired by labelprinter from SFZ-aalen