You can Install it on your machine going
sudo dpkg --install tuxguitar-2.0-SNAPSHOT-linux-x86_64.deb
Download it here:
tuxguitar-2.0-SNAPSHOT-linux-x86_64.deb
Big thanks to Zamfox and alniro for giving me the idea. Hope you can get back to your tabs this way

Most likely this package will only run on Debian Buster. At the moment https://github.com/ohli is working on a build for arch linux... maybe try that one.
TuxGuitar on GitHub
Last Changes:
Added new Tuner with Yin algorithm