There is a new version under development HERE.
This application has reached the end of life. We are creating a new version completely written from scratch, more information here.
There is a fork for Pop!_OS, created by isantop here.
mirkobrombin/PPAExtender
*end of life* // Manage your PPA // new version=> https://github.com/linuxhubit/ppaextender
PythonGPL-3.0