Looks like this project is a fork of the discontinued roop[0] with primarily some UI improvements. One of roop's main developers has been working on facefusion[1] for the past year and it produces by far the most convincing results from the ones i've seen and it also supports real time webcam face swapping.

0: https://github.com/s0md3v/roop/

1: https://github.com/facefusion/facefusion