3 ms·

Being built with the Catalyst framework which is only available in Catalina seems like a pretty good reason to only have this available in Catalina.

• bangonkeyboard 7y ago
  Catalyst (née Marzipan) apps first appeared in Mojave.
  • azinman2 7y ago
    Likely didn’t have the required apis then for this to run.
  • dwaite 7y ago
    Catalyst != Marzipan, not even architecturally.
• throwaway55554 7y ago
  I stand corrected. I didn't read far enough to know that this was Catalyst.