I have new rig so build times are drastically lower than on my previous craptop. I’m trying to fix it by using same json manifest as folks from blender flatpak are using.
Changed few things and it builds ok, but dunno about binary.
https://github.com/tkaczz/org.bforartists.Bforartists/tree/task-%232
https://github.com/tkaczz/org.bforartists.Bforartists/issues/2
Found it why it crashed. I had to change directory name from blender to bforartists as in imgur post
https://imgur.com/a/6HAMdTz