If you encounter issues then please get in contact by raising an issue on GitHub: https://github.com/tttppp/mountain_tapir In particular it would be useful to have any error messages that are seen when launching from the command line.
Enable snaps on Kubuntu and install mountain-tapir
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.