> They lost their developer base. Support of open source tools on QNX stopped.

Right. These days it's better to invest into Redox OS[1] as a potential substitute for it (if work on real time capability). And with real time patches merged into Linux mainline[2] QNX doesn't stand much chance today too.

[1] https://doc.redox-os.org/book/microkernels.html

[2] https://arstechnica.com/gadgets/2024/09/real-time-linux-is-o...