I had exactly the same idea, and I’ve implemented it for myself but haven’t productised it as yet, and I’m not sure I will. Love the self hosting part, and it’s

I had exactly the same idea, and I’ve implemented it for myself but haven’t productised it as yet, and I’m not sure I will. Love the self hosting part, and it’s not that hard but the security part I found problematic. I used Oauth for signup, which made it easy to share links to galleries via e.g. Facebook and then click through using Facebook login. I also went for a more open model where anyone could log in but I could block people later on if I didn’t want to share. Depending on how sensitive a particular piece of content is, both models would probably better. It seems important to minimise friction as much as possible or people just move on. Come back later when I’ve approved you is not a good model, I found people simply lost interest.