Most of the buttons don't need explanations, but some do:

KEY_1, KEY_2, KEY_3 and KEY_4 are the time control buttons,

KEY_F* are the cleaning path algorithm's

KEY_KP* are for the brushes on the front.

The webapp directory contains a Flask webapp with the remote.

Run the app with

python3 app.py

There is HTTP basis auth for the one and only endpoint. Copy the .env.dist to .env and fill in the values.