It is packaged as an appimage
So the instructions are:
  • Download
  • Move it to a directory you wish to run it from (e.g., ~/opt )
  • Do a chmod u+x [downloaded file]
  • Run it! (e.g., from a file manager, or add a launcher to your desktop)
It will create some directories in ~/.config and maybe elsewhere, so don't forget that if you later want to "uninstall".
Actually it turns out the issue was with a missing dependency - we had to run sudo apt install libfuse2
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