We had critical situation at home, so we also decided to set up a recording camera. Brand name is “Eufy”. Yes, you need to register an account to watch the streams, however recordings are stored on a sd card. They also offer door bells, which require a gateway, which then stores all the recordings. Eufy adversites it’s products for being secure and private, however… I just think everything comes with a price and Eufy offers a fair trade between privacy and comfortabity/usability.
So for me: Ring is a no-go and I’m not willing to set up and maintain a homebrew-solution.