a shell prompt, kept alive since 1999.

In the late nineties, most internet providers were quietly dropping real shell access from their plans — no more telnet, no more logging into an actual Unix box you could poke around in. Shell User Network was built for the people who didn't want to let that go.

It offered exactly what it sounds like: a real login on a real machine. Telnet and FTP access, a proper mailbox, a little disk space, and a homepage at your own ~username. No walled garden, no permission required — just a shell.