Right now Tonfotos has mastered who (People), when (Event), where (Locations) - all it needs is the What (Objects?)
What would be objects? Have an AI that categorizes as many things as possible - like ‘cats’, ‘barney’, ‘sunset’, ‘car’, ‘birthday’, “night”. The more accurate, the more bonus points.
Sources to compare this feature - Photoprism has a very crude attempt which “kind of works”. Probably can’t compete with results from places like Google - that would be the extra bonus.