Any stack suggestion for ?

I am a huge HA fan since dropping FHEM a few years ago and I am more than delighted about the progress overall in HA..specially year of voice....but I can't quite wrap my head around some stack I want to achieve. Maybe one of you has a basic idea how?

I use HA with whisper/piper etc. and right now I am stuck in making data from plain text information available in piper.
Like I have a wiki or a txt or anything that would work and that document has loads of text...dunno...a receipe...or some history articles.... and now I need to extract a specific piece of information from said text.

Wakeword, can you please tell my how much salt is used.

or

Jasper, in which year did I buy that console?

I am able to run all my intends but it does not make sense to write a million to achive this. I also doubt chatGPT API is a good solution for a trivial thing like summarizing (like blinkest) a text of finding a specific info and also not like good with privacy.

Any suggestions? gpt4all and some API? Lists of intends?
I mean it would be nice if I could just add a nextcloud instance and some addon will scrape the info for me there.