> I'd rather try a LLM to whom I through some sources at or refer to them by some kind of ID and ask them to summarise, give me examples based on those (e.g man pages) and they give me just that near 100% accuracy. That will be more productive imho.

That makes sense! Maybe an LLM with web search enabled, or Perplexity, or something like AnythingLM that let's it reference docs you provide, might be more to your taste