We finally made mach build produce All The Things (GV AAR, GVE APK, test APKs) in Bug 1550146. But mach install doesn't help get any of those APKs things onto the device. Now, mach android install-geckoview_example exists, and mach run does useful things, to some extent -- but after Bug 1521996 we can really lean into this and make mach install ... do good things for mobile/android.

How about making mach install support fzf for fuzzy matching known APKs? That might solve a problem here and for mach run, which also needs a way to specify APKs on the command line. (Although, once Fennec disappears, all the APKs produced have fixed Android package names, i.e., there's no $USER hanging around.)

The only APKs we care to install are GVE or the TestRunnerActivity.

Tasks and enhancements should have severity N/A.