Some general comments on this thread:
* Rockets are a very, very small niche hobby. 99.9999999% of the world could care less about amateur rocketry.
* As mentioned in other posts, a lot of rocket electronics are "after hour, cottage businesses" run by fellow rocket enthusiasts who are generously sharing their electronics and coding interests & expertise with the greater rocket community......which makes us all better off because we get to leverage their efforts for far less than it would cost us to personally duplicate their offerings. We are free to buy or not buy their products.
* These are one or two person deep efforts and these small businesses certainty don't generate enough money to live on. Since a day job is required, that means work on these systems takes place in the hours after knock-off and before bed, probably with coffee, and on the weekends. In fact the return on the proprietor's time can be very low when considering the total amount of labor devoted to design, testing, production, customer support, order processing/shipping, software maintenance, along with the G&A & hassle of running a small business. And, any "profits" are subject to Federal and State taxes as well which further reduces the return on time spent.
* Writing, debugging, testing, and updating software can be much more difficult and time consuming than designing hardware, particularly if functionality is enhanced over time through spiral development.
Personally, I am very impressed with the system given developer's time and resource constraints. My experience over the last several years is the tracker works very well. At Balls 2021 I tracked a friend's two stage sustainer to over 60Kft with the audio telemetry enabled with no issues, and the system took us right to both the booster and sustainer which landed a number of miles away from the flight line. The booster had an issue with deploying the main chute and the tracker was knocked out of its carrier, free falling from a significant height onto the playa. Amazingly it was still transmitting .....after picking up the booster we carefully drove about 700 feet and stopped short of it's reported location because we were worried about accidentally driving over it....and there it was right in front of us