About MSEGUI. Since Martin Schreiber passed away years ago (it was a shock for me, it was in the middle of the project based on MSEGUI so I had contact with him over newsgroup), I see that Fredvs took over the project. Fred, how it is going? Are you handling it well?
Hello Dibo and I am so happy to read you!

MSEgui is still in the race, and it has become fpc > 3.0.0 and BGRABitmap compatible, it has new targets: OpenBSD, NetBSD, Mac (via XQuartz), plus lots of fixes and new features.
All this thanks to the wonderful and clear code of Martin and the torch taken up by Roland, Sieghard, Alexander, Codedz, Mohamed, Circular, Lainz, other friends and me.
The last release is MSEgui version 5.10.4. Apr 13, 2024.
But there are some commits after the release so better to take always last source from GitHub/Codeberg git sites.