2 posts tagged otp, newest first.
An afternoon spent finding where a Nerves target's Erlang version is really decided — and discovering it is encoded in the filename of a patch inside a dependency I had never opened. Plus the Kconfig default that will silently move you to OTP 29 the moment you bump.
Counting down by subtracting the tick interval drifts on an embedded board. Deriving the remaining time from a monotonic deadline instead makes it drift-free by construction — and injecting the clock turns a 25-minute test into a map update. It also caught a real race.