Is it possible to make multiple home assistant pipelines.
for every pipeline you can check what features the pipeline covers. (I think putting entities in selected pipelines is overkill) (rooms perhaps)
But that you can select in automations if it needs to be a certain pipeline.
I have a LLM call screener in my voicemail that works by catching everyting said in a automation and control an LLM and my asterisk server from there. SO i have a home assistant instance only for my voicemail.
But you could better create assistants for kids for example. that you can program.
playback recorded night time stories for example.