It was a long way. I started in the Pro Audio niche and initially supported Windows, Linux, Mac. Over time, I learned the hard way that supporting Apple's constantly changing OS is very expensive, plus Mac users tend to act the most entitled when stuff doesn't look or feel like their native OS. And Linux just never sold a license, instead I got lots of Open Source bitching. So eventually, I dropped Linux and Mac support, doubled down on the new Windows APIs and then things got nicely profitable. Price is one-off $299 for the regular app kit with perpetual updates (so far). People use the apps for making movie sound effects.