[mhd]

Meh, if the proprietary software has a good UI, it's going to do well -- open source tends to suck on that front, quite often because it's cross-platform and that doesn't favor the OS X look.

Sure, for programmers and command line users there will be alternatives, but that still leaves a large market.

Y'know what's going to kill Apple indie development in our reality? Apple. A lot of the paid shareware has a long pedigree, and the upcoming de-Carbonization will put an end to many small-shop software.

[mercutio2]

Indie shops that are still shipping Carbon in 2019 haven’t been making good Mac apps for a long time.

They may be making useful tools, which their customers really need, but they haven’t been good (in the sense most people mean by good on Mac, which is notably different from on other platforms) for a long time.