datahoarder
Who are we?
We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.
We are one. We are legion. And we're trying really hard not to forget.
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Start by hoarding your own data, on your own, existing devices/hardware.
Consider how to categorize or not your data.
Aside from proper backups (I have cloud and local) I've actually been doing this for a while albeit in a pretty rudimentary fashion. I'm pretty happy with my existing categorization. I am looking to make it more robust than a copy on an external hard drive + YouTube for big videos/a cloud storage service, especially since I have hit the point where I need to get myself some more storage.