How would I build/install on MX Linux

[tmountney]

The ppa, "ppa:vala-team/ppa/" listed in the dependencies isn't recognized by synaptic... as entered:

URI: deb http://ppa:vala-team/ppa/

Failed to fetch http://ppa/ppa/dists/buster/InRelease Could not resolve 'ppa' Some index files failed to download. They have been ignored, or old ones used instead.``

Would like to try Sarah.... any advice?

Edit 12/14: never mind - figured it out...