IMHO your marketing (incl. the title of this HN post) should more heavily emphasize that this has a native mobile app available in App Stores, that talks to this self-hosted server. There are many other private photo-hosting systems, but most of them are web-only — very few have a good, comfortable native mobile UI that you'd actually want to use!
See also: the directory https://github.com/relink2013/Awesome-Self-hosting-for-the-w..., that collects "self-hostable services with native mobile app clients." This project should be on there! (Right now, the only entries in the Photos category are two [closed-source!] Synology offerings, and one other app that's not E2E-encrypted. You're better than these — go claim your crown.)
See also: the directory https://github.com/relink2013/Awesome-Self-hosting-for-the-w..., that collects "self-hostable services with native mobile app clients." This project should be on there! (Right now, the only entries in the Photos category are two [closed-source!] Synology offerings, and one other app that's not E2E-encrypted. You're better than these — go claim your crown.)