yep, there's a c++ implementation to run it https://github.com/ggml-org/whisper.cpp
Isn't WhisperX the canonical choice for running Whisper?
While whisper and whisperx is python implementations, the whisper.cpp wins the benchmarks.
Maybe for running locally? whisper.cpp is nice because you can embed it pretty easily in apps for various targets like iOS, OSX, Android, wasm, etc.