Hi, I decided to look at making my Gimp 2.10.38 appimage work on Fedora 42. I already had 41 so upgraded it and tweaked it to work on the last Fedora. I'm sure I'm the first person to use MathMap on Fedora 42. 
An advantage of doing this is it's a clean system - nothing for Gimp to do wire read checks on. That means it's easy to read all console output. I can see some requests for libs and they are all spawned by GEGL. They are high level maths libraries and every dependency has more dependencies. I realized this last year when I made the 2.10.38 appimage. I'm not sure if I'm going to chase every one of these GEGL deps down a rabbit hole or not. I have other things to do.
It seems Gimp got dragged into a big external dependency strategy and I'm surprised people worked-out how to make GEGL use all these scientific-style libs.
So I may follow this dependency avalanche to it's end or just keep it simple. I Haven't decided.
BTW. I haven't uploaded the Fedora 42 supported appimage yet.
An advantage of doing this is it's a clean system - nothing for Gimp to do wire read checks on. That means it's easy to read all console output. I can see some requests for libs and they are all spawned by GEGL. They are high level maths libraries and every dependency has more dependencies. I realized this last year when I made the 2.10.38 appimage. I'm not sure if I'm going to chase every one of these GEGL deps down a rabbit hole or not. I have other things to do. It seems Gimp got dragged into a big external dependency strategy and I'm surprised people worked-out how to make GEGL use all these scientific-style libs.
So I may follow this dependency avalanche to it's end or just keep it simple. I Haven't decided.
BTW. I haven't uploaded the Fedora 42 supported appimage yet.