* Instead of using the prebuilt AppImage, build from source and wrap with
Electron from nixpkgs.
* Wrap in FHS user environment with buildFHSUserEnvBubblewrap.
* Correct meta.description to mention GOG support.
* Simplify meta attribute
* Update maintainers.
Taking over sole maintainership from wolfanguakang.
* Use gogdl and legendary-gl from nixpkgs
