Things that won't be implemented:

- Stupidly long nick or channel names. Libera has 24 chars for
  max nick len, 50 for channels. Any more than that is insane.

- Color. No sane way to do it on the Atari. Color codes will be
  stripped before messages are displayed. You can *send* color
  codes (Ctrl-C and numbers) for other clients to see.

- Connecting to multiple IRC servers. While the FujiNet is capable
  of multiple simultaneous TCP connections, I really don't want to
  complicate things enough to make this possible.

- Unicode/UTF-8. We're using GR.0 on an Atari, there aren't enough
  glyphs available to make it worthwhile. Plus, decoding UTF-8
  would take up a lot of space.

- Support for XEP80 or VBXE, or in general any 80-column hardware.
  Or software 80 columns, for that matter.

- Extended IRCv3 stuff (tags, capabilities). I *might* try to
  implement SASL, but it's low on my list of priorities.

- PASS command during registration. If you're an IRCop, you
  should use a modern full-featured client.

- Log files. SIO bus doesn't have the bandwidth for writing to
  disk while also doing TCP/IP. I suppose logging to something
  like a RAMdisk or SIO2IDE (or other non-SIO hard drive) wouldn't
  be impossible, but doing it right would be a PITA.

- Triggers or scripting. At most, there will be autojoin channels
  and a (very) few keyboard macros (e.g. you could define a macro
  that does "/m ChanServ identify <user> <pass>", but you'd have
  to press a key to send it).