Neither Ubuntu packages haven't been updated nor the official PPA. The latest version of Ubuntu mentioned is .. 19.04 .. so I think the page hasn't been updated in ages.
I guess maybe it works if you build from source? But last I checked it was a hairball with build scripts
There is no rush. I will wait for the AppImage to get published. It's just the release links to Linux downloads are broken and I thought someone in charge will see it
Btw am I reading it correctly - you guys are still on Subversion? and no CMake? but you're using C++17. What a weird combo of old and new :)
I guess maybe it works if you build from source? But last I checked it was a hairball with build scripts