I recommend using hibernate (suspend to disk): your computer will "sleep" for 10 years without draining. The only cost is about 7 seconds to boot on modern hardware. For short interruptions with instant wakeup, you can still use light sleep states.

It combines perfectly with LUKS-encrypted root and swap partitions: your data is safe even if someone steals your computer and swakes it up.

True, kernel developers should resolve the Secure Boot issue with hibernation, but the development focus is on servers, not laptop computers. Also, hibernation should probably use a dedicated hibernate image file instead of requiring a huge swap partition. That being said, it works regardless of hardware capabilities if you turn off secure boot and just configure a LUKS-encrypted SWAP partition. You should figure this out before you install the OS.

32 GiB. I decided against a 96 GiB model with hibernation in mind.

I hate phone typing, so I'll take it as a compliment 😉

You are absolutely right, and I should have thought before quickly posting. I'm going to amend the source repo ASAP to make it clear. I enjoy algorithmics and CLI works, but I hate UI, so this really is a time-saver for me. I'd never be a good web front-end developer. That said, I exercise quality control and control the logic. This app is just a tiny layer on top of the official age/typage typescript library. Go and check the source!