Ask HN: How to manage our digital assets (photos etc.)

I'm thinking about all the digital assets I've collected over the decades and looking into the future - I don't trust 3rd party providers to last the course.

Here's what I know:

1) Online providers don't last (or I don't stick): When I had a Nokia N95 I uploaded to Nokia Ovi (gone), When I had a camera, I uploaded to Flickr (gone), When I had an Android I uploaded to Google Photos (still there but I only just remembered), When I was naive I uploaded to Facebook (still there)

2) I've got lots of disks and CDROMs filled with photo backups

3) I want to be able to access these assets, and search them, must have face recognition and tagging (gotta find those cat pics)

I'm looking for two things:

1) Some suggestions for solutions for this.

2) I'm currently leaning towards running/building my own on AWS: What metadata is useful for organising your own assets? What would make a great long term asset tool?

Cheers