I'm building (what I hope to be) your new home for all your photos and videos. It's called PhotoStructure.
TL:DR; see https://blog.photostructure.com/introducing-photostructure/
In a nutshell, I've got 20 years of digital photos and videos, spread over tens of hard drives, CDRs, crashed laptops and servers, and takeouts from failed photo services.
Nothing I tried could sweep everything into one neat and deduped pile.
Nothing I tried scaled up to several hundred thousand files, with cross-platform support (to minimize vendor lock-in).
And nothing I tried had a UX that made browsing that large of a library be delightful and serendipitous.
So I'm making it.
I've currently got a build for Mac, Windows 10, and Ubuntu desktop. I've got a preliminary snap and docker image, and look forward to trying it out on a raspberry pi 4 soon.
I'm looking for more beta testers, if this sounds interesting and you'd be willing to share feedback! Email signups are in the above link.