Not sure how ollama integration works in general, but these are two good libraries for RAG:

https://github.com/facebookresearch/faiss

https://pypi.org/project/chromadb/

Have you used either of them before and have opinions on them vs HA?

For mobile with fastmail, I use fairemail. Works great with it, and provides a nice merged view with my non-fastmail work emails.

This site is specific to AWS, but you might find it helpful:

http://ec2instances.info

Looks like it got bought out by someone, so might be enshittified, but it’s worked nicely for me in the past.