"You can turn anything into an air mouse if you're brave enough"
— Piper, a.k.a. Pez
Naturally, the quote above applies to Flipper as well.
The app allows you to turn your Flipper into a USB or Bluetooth air mouse...
Using it is really simple:
USB, or pick Bluetooth and pair it with your PC;See early prototype in action.
Take a look into the schematic folder for Gerber, BOM and CPL files, so you can order directly from JLCPCB.
If you're familiar with Flipper applications, start in the firmware checkout folder and do the following:
cd applications/plugins
git clone https://github.com/ginkage/FlippAirMouse
cd ../..
./fbt fap_air_mouse
If you're not familiar with those, just grab a fap file from Releases.