Crystal BBS

If Python is not your thing, you're in luck - this tutorial uses Crystal and is more of an overall view of BBSs, including the Telnet protocol.

• A basic understanding of programming (Crystal is very similar to Ruby)
• A Linux or macOS computer or VM - sorry, Crystal is not available for Windows yet!

The following lessons will help you get a basic Telnet-enabled BBS up and running:

• Part Zero - Intro to the Telnet protocol
• Part One - Basic Telnet server with minimal functionality
• Part Two - Telnet client feature negotiation