[vrotaru]

> Oberon also doesn't seem to be actively developed anymore

That's pretty much it, for maybe 10+ years now. There was a successor project BlueBottle with some promise, but it did not deliver. Later it was renamed to A2. Surprisingly, it did not help.

https://en.wikipedia.org/wiki/A2_(operating_system)

IMO the authors of BB/A2 bet heavily on XML/Java hype, and were trying to make Oberon more like Java. The result was something without much internal consistency and not very usable.

Not being able to use a major browser and not having the resources to write one from scratch did not help either.

Then some of the major figures of this project left. And that was it.

There are some hobbyists and some small businesses which use it for niche projects and that is all