I started a news crawler service which makes > $500/mo. https://currentsapi.services/

I started this service during my last undergad year, improving the pipeline really helps me a lot in understanding crawler, schema designs which you don't learn from anywhere. This experience also helps me land my first job as well.

If anyone is interested, I maintain a list of open source vector search engine services[1].

Feel free to submit a new issues or merge request if you wish for new library added

[1] https://github.com/currentsapi/awesome-vector-search

Here's a list of vector similarity search projects: https://github.com/currentsapi/awesome-vector-search, you can find other alternative method than faiss. Disclosure : I am the maintainer of this lists