A friend of mine got a job with the Florida DOT at the SunPass road toll testing facility. Yesterday was his first day on the job.
As he was being shown the equipment he decided to ask what OS it was running. You guessed it: QNX.
Later he asked what version. QNX 4.25. It still lives on!
The comment he got from the contractor was that almost anyone doing something like this uses QNX (if they want to be successful) because Windows and even Linux can’t handle the speed and reliability requirements.
Sounds like I could still have an opportunity to earn some contracting money in my retirement!