Problem is that the 2017 version, the last version that's open source, won't run on Catalina (or Mojave or High Sierra for that matter). The amount of fixes and

Problem is that the 2017 version, the last version that's open source, won't run on Catalina (or Mojave or High Sierra for that matter). The amount of fixes and compatibility patches that the author did is quite extensive. Replicating his work would be quite an undertaking and wouldn't be trivial.