I also recommend Nitrokey. I have a Nitrokey Pro 2 and a Nitrokey 3 NFC and they both work well. Linux support is very good, and they also have good documentation on how to do most stuff you might want to do. +1 for being open-source as well.

Got it 🤖

Shouldn’t the second line be r²y = ln(x/m - sa)?

Internet access? Never. LAN access though is a different story altogether…

Depending on your use-case, maybe a static site generator could work for you? Something like Jekyll or Hugo. Both can be hosted for free on Github Pages (and I think Gitlab has something similar). While you still need some technical know-how in order to set it up, you can write your content in Markdown, which is a lot easier to write than HTML, and there are a lot of themes available out there you can use, so no need for CSS.