This is my bad, I haven’t tested the flatpak version but since fojo requires custom arguments it won’t work until I update the flatpak def. I’ll hide the download.
For the generic Linux versions, this is highly distro-specific.
You’ll need powershell for the launcher, but other than that the requirements are the same as the upstream PC Port. The simplest way for most normal users to run linux PD (aside from the flatpak) on linux is to add run-fojo.ps1 as a Non-Steam game and use a linux runtime environment.