Question :

In a nutshell you ask an LLM to summarize the transcript and input some notes to help frame the results that's all ? It could be done with ChatGPT + Notepad ?

Yes it could be fully local, but to do that you need a serious computer and a way to distribute Whisper (on Windows)

FYI I tried something close, but comparing Plaud and Whisper (on Windows) Plaud wins far ahead.