Just released dos2ansi v0.4, with lots of #DOS#codepage s supported and a testmode to display them.
The next nice feature would be to use the actual terminal capabilities if output goes there. Very simple on *nix-like systems (#Linux, #FreeBSD, ...), just link #curses and use the termcap functions.
Thinking about #Windows again, either I keep relying on #UTF8 support (since #win7 IIRC? and still a bit buggy) and #ANSI sequences support (since #win10) .... OR I attempt to use the native #Console#API there (using special functions to write in #UTF16 and other special functions to set colors, which would require a major refactoring first 🙄)