> Any open-source operating systems built on top of numerous RTOSes
What does this even mean. Already fragmented apps before it even starts, what else to expect.
Are you complaining about the lack of a walled garden on a post titled "open source smart watch"?
Yes, open source leads to experimentation and individualization which leads to fragmentation. It's a trade-off, but and there are already plenty of other smart watches going for a less fragmented but less open ecosystem
I am complaining that they don't provide one single OS experience.
I didn't mention anything about walled gardens.
Why do you expect them to restrict what you can put on it (i.e. enforce a single OS), when the point seems to be for people to do whatever they want with it?
Because without a standard OS stack it is going to be the "Year of FOSS Watch"™.