Tinygo is great. I think they could address a much larger "market" by improving support for ARM-based systems, notably iOS and Android. I've experimented with cross-compiling Golang code for these platforms and it works great with tools like gomobile, the binary size and runtime overhead can be prohibitive though. I looked at Tinygo to see if it could help with that but couldn't figure out how to compile code for Android, I think it would have been a perfect solution otherwise. In my understanding it supports most of the TLS stack and many other standard libraries as well, which makes it realistic to use it as a systems language on mobile platforms.

I know that Tailscale keeps their own fork of Golang with some optimizations for mobile as well, and where they try to merge stuff back into the mainline, so maybe in the future binary size and runtime overhead will go down for regular Golang. Tinygo seems to do a much better job at reducing that though, so it would be great to have it work on mobile.