Looks really nice! I could definitely give this a try. For others who are looking for possible deal breakers:
It's AGPL
They have the community version/premium model. Differentiators of premium (from https://photoprism.app/features):
* support
* higher max res (900MP vs. 150MP)
* non-rate limited reverse geocoding
* higher quality maps
* premium themes
* visual configuration options
* hardware video transcoding