N3M

I'm far from an expert, but anything on standards JIS X6257 / ISO 18630 would probably be a good start. It's an open standard for 100+ year discs.

Otherwise probably best to look into accelerated aging studies. For technology that's less that 100 yrs old to claim 100 or 1000 is a bit uncertain but accelerated aging is probably the closest to a best guess. I recall skimming over a third party lab saying Verbatim gold foil archival DVDs were estimated to last 30-120 years depending on storage methods and luck, but never saved the link.

Oh yeah, stick it in the sun or a damp box and either will probably be bad in weeks instead of decades or centuries. But supposedly they'll meet those lifespans good at room temp

Kinda funny, I was just writing about archival media this morning. Verbatim makes DVDs & Blue Rays that last ~100 years, and M-DISC makes ones that'll last ~1000 years. And the Verbatim Blu Rays run ~$0.036 per gig.

Decentralized encrypted email.

Create a key, identify it by a hash of it, and encrypt all mail sent to the account with the key. Allow it to run on top of regular email using one or more email addresses as an alias, but have the key itself be the identifier.

Client 1 creates a key pair > uploads email address(es)/"aliases " that client controlls (signed with key pair) > client 2 searches for emails based on client 1's key or aliases > client 2 sends email through one or more of the accepted inboxes encrypted with public key > client 1 reads encrypted email.

Basically a modernized version of PGP that also handles identification, and similar to how it's been proposed to change Matrix accounts to in order to make them decentralized.

Privacy or security hardening?

If you're just using Windows for gaming, and you're only on game markets like Steam and maybe video/audio streaming services while gaming then you're probably pretty secure. As far as if you're just installing games, then there's not really too many inroads for malware outside of a market like Steam or the particular game company getting compromised, which would have issues regardless of which OS you're using them on. Windows 10 already has anti-virus built in and UAC so you're probably just about there already. I say this as a die hard Linux advocate: the idea that Windows is wildly insecure when compared to Linux/Mac/BSDs is incorrect as far as I know and is just a myth from back when nobody cared about writing malware for anything other than Windows.

If you're also web browsing, I'd say having a well configured browser would be good to do, and making sure you are regularly updating/auto updating Windows and other software. Also, if you play a lot of online games and end up opening up port forwarding or something similar just be conscious of it and make sure to do something like that right and limit what kind of attack surface you're opening up.

If you're thinking privacy, I did just do a blog post about Win 11 which is similar, but I have a feeling if you're on Lemmy you're already familiar with what the basics the post includes: get a decently configured browser, toggle off as many privacy invasive settings as you can, disable the telemetry service, and try to limit the bloat Microsoft likes to include during or after installation.

I'd also very carefully vet any sort of scripts, custom ISOs, and the like if you choose to use them. You'd be putting a lot of faith on whoever made them. And probably don't worry about VPNs and such, they're not going to do anything to hide the fact that you (presumably) purchased games under your name and you're using your account to play them.

I'm typing this up on the fly and by no means the leading expert in the field, but these would probably get you a good 95% there. Happy gaming