Tip: I did that, they didn't work, I fought the tools that built them, I decided AppImage was too hard.
I created an AppImage using Nix. Consider it experimental, but I got it to run on a few distros using software rendering or virtGL. https://image.nostr.build/2bfa8c18cc1dc22f4ba2157b642fc0230feb4e8ce6a67bc8dbe1ecaeea103606.jpg https://github.com/emmanuelrosa/gossip-appimage