I had never heard of that. What's your use-case for it?

Why SDF over a free limitless VPS?

I joined SDF last year and was disappointed. I was willing to tolerate the limitations (eg. can't change your shell unless "validated"; can't even 'touch' a file...) in exchange for community but it's a ghost town. To make matters worse, IRC for new users is only available on a Sunday!

I would love to give it another shot but I don't understand what its value is in 2025.

So this seems to be a membership to access a remote Unix system and share it with others?