Single-node Chroma is very easy to self-host for free: https://docs.trychroma.com/guides/deploy/docker
It's a great model for people who want to have grasp beyond the typical software reach.
https://en.m.wikipedia.org/wiki/Gratis_versus_libre
Single-node Chroma is very easy to self-host for free: https://docs.trychroma.com/guides/deploy/docker