webar-controller
This is an HTML site that uses the Web Bluetooth API and the WebXR Device API to send G-Code to an ESP32.
The ESP32 runs "esp32_bluetooth.ino", in which it basically receives those commands and forwards it via serial to an Arduino nano, which interprets them. The nano runs on GRBL firmware. Two microcontrollers might be an overkill, but I wanted to have the Nano with GRBL to be its own separate CNC layer and have the wireless component be optional.