Shipping the application via Flatpak on Linux

[Vulcalien]

Hi! I'm working on a flatpak manifest file that, if pushed to FlatHub, could allow Linux users to install the betacraft launcher via flatpak. This would be preferable to those (like me) who prefer installing applications through package managers, and also to somewhat sandbox the game.

I already managed to make Minecraft play, but there are still things to work out. Here's the file:
uk.betacraft.BetaCraft.yml

I'm asking for feedback. If you agree to this, I can submit the flatpak to FlatHub under the name uk.betacraft.BetaCraft.

Test the flatpak

First install Java 8 by running flatpak install org.freedesktop.Sdk.Extension.openjdk8 and choosing the 23.08 version.
Then, install the flatpak by running flatpak-builder --user --install --force-clean build-dir uk.betacraft.BetaCraft.yml.
Finally, run the launcher with flatpak run uk.betacraft.BetaCraft

[Vulcalien]

Here's the current version of the flatpak manifest and related files. https://github.com/Vulcalien/uk.betacraft.BetaCraft
Feel free to take over from here.

[Vulcalien]

I'm fairly certain the manifest is ready. All that's left to do is publishing it to FlatHub.

[notdevcody]

Might consider. If that's done, v2 should also be on flatpak.