The C64U has the capability to host and connect a bulletin board system. This is very early internet service that is mostly forgotten, like Gopher.

With the limited online capabilities of the C64U is using a BBS besides IRC-chat the obvious thing you can do online with this computer.

The BBS-software is included in the 'Very Very second'-software bundle.

If this wants you to connect to a BBS on other devices you need a client;

• MuffinTerm for MacOS and iOS
  • https://muffinterm.app/
• SyncTERM for Windows, Linux, OpenBSD, NetBSD, OS X, and FreeBSD
  • https://syncterm.bbsdev.net/
• DCTelnet - A classic Amiga Telnet/BBS client with Zmodem
  • https://github.com/bruno-frederic/dctelnet

Sysop Nick McLaren.

• telnet c64u.club (port 6464)
  • use PETSCII, (ASCII is not supported)

• https://www.commodorebbs.com/