Need help building/installing Blockstream Green from repository


I am trying to build the Blockstream Green desktop client from the Github repository and I’m having issues.

I followed the directions in this

I started Docker and ran the build command for the ‘static release on Linux’. It downloaded about 2.24gb of data and then failed out, saying ‘unsupported target’

I ran the same Docker command a second time, and it returned:
/bin/sh: 1: ./tools/ not found

There is also an AppImage available to download, however I’ve already tried it. It puts a icon in my launcher but then does nothing when you try to run it.

Any/all help is appreciated.