It's weird that the article mentions Makepad, but somehow fails to observe that Makepad's primary demo application is actually a software synthesizer. Go watch some of Rik Arends' talks! Most recently this one from RustNL last week: https://www.youtube.com/watch?v=9Q4yNlbfiYk (first talk of the day).
It's ok, we have been pretty quiet. Our primary launch goal is to have a full visual designer/IDE, not really push the UI framework stand-alone. However progress is happening and we are getting closer to that point as you can see in the talk above.