As a different workaround you can also get the [Ubuntu20.04-Version](https://ubuntu.pkgs.org/20.04/ubuntu-universe-amd64/unison_2.48.4-4ubuntu1_amd64.deb.html):
`wget http://archive.ubuntu.com/ubuntu/pool/universe/u/unison/unison_2.48.4-4ubuntu1_amd64.deb`
and install that one on your other system (tested on Debian Bullseye):
`sudo dpkg -i unison_2.48.4-4ubuntu1_amd64.deb`
As a different workaround you can also get the [Ubuntu20. 04-Version] (https:/ /ubuntu. pkgs.org/ 20.04/ubuntu- universe- amd64/unison_ 2.48.4- 4ubuntu1_ amd64.deb. html):
`wget http:// archive. ubuntu. com/ubuntu/ pool/universe/ u/unison/ unison_ 2.48.4- 4ubuntu1_ amd64.deb`
and install that one on your other system (tested on Debian Bullseye):
`sudo dpkg -i unison_ 2.48.4- 4ubuntu1_ amd64.deb`