(considered hooking up whisper.cpp and a bit of audio magic to make it at least transcribe, but it firstly seemed like a fair bit of a pain and secondly I couldn't think of a nice way to do speaker detection.)
I'm currently hacking away on a mix of https://github.com/speaches-ai/speaches + https://github.com/ufal/whisper_streaming though - mostly because my laptop doesn't have a decent GPU, I stream the audio to a home server instead.
But overall it's pretty simple to do after you wrangle the Python dependencies - all you need is a sink for the text files (for example, create a new file for every Teams meeting, but that's another story...)