Advice is needed. KOHighlights won't run on recent Linux releases.

[noembryo]

I don't use Linux, but I do try to build the KOHighlights app to be compatible with as many Linux system I can.
The way I do this, is by keep a semi-old (Xubuntu 18) image somewhere, and use it to compile the builds.

The reason I keep this old version, is to have compatibility with all the versions after this, since I read that this is the way Linux builds work. If something is compatible with 18 is also compatible with 20, etc.
And it was, until recently, working like this.

The newer releases of Linux(?) though, or the recent change from Python 2 and PySide to Python 3 and PiSide 6 in the app, changed this somehow (see #40 and #42 and #49), and I don't know how to fix it.

So any dev with Linux knowledge out there, that can help by pitching any ideas is really welcomed.. 🙏