If your running arch you need to:
Put your phone in development mode (different for each phone so check Google)
Connect your phone to your pc using a package like mtpfs which allows access to phone media
You also need Android studio or at least some of the binaries like adb
Then just develop normally
quasar dev -m c and you’ll see an APK / an app installed on your phone which updates in real time based on the changes you make.
If your using a desktop env like gnome you may not need to use mtpfs
I’m on my phone rn but I’ll test tomorrow, but pls let me know how this turns out