I haven't used any of these yet to say if they meet your criteria or if they are worth using, but here are a handful of potential options that I snagged from my

I haven't used any of these yet to say if they meet your criteria or if they are worth using, but here are a handful of potential options that I snagged from my bookmark list. - https://photoprism.org/ https://photoprism.org/ - http://koken.me/ http://koken.me/ - https://lychee.electerious.com/ https://lychee.electerious.com/ - https://github.com/thumbsup/thumbsup https://github.com/thumbsup/thumbsup (believe this one is actually a static site generator) - https://chevereto.com/ https://chevereto.com/ - https://piwigo.org/ https://piwigo.org/