Based on Excalidraw, this app connects to a laser box with bluetooth and controls it remotely.

yarn start

Doesn't get much simpler than that.

Connect with ssh to the pi:

ssh ecstrema@ecstrema-pi

You'll then be asked to input the password, and you can work with git to run the bluetooth server.

What I do is I work on my remote machine, then periodically git push and git pull from the pi, before running it.