How to use this tool?

[Mannshoch]

I downloaded this tool an opened it. I choosed a time sequence and pressed encode. This tool seems running. But I don`t know where the cut file got saved.
There is no save dialog and and no other hint wher this file should be located.

Wha do I have to do?

[licaon-kter]

Did the progress bar load up to the end? If so...you were presented with a dialogue to Share/Ok

But files are saved in Movies/ anyway

[Mannshoch]

I did not see the share buton.
It seem ther is nothing saved to Movies. But the share button works.
Android 12 - lineageos