I thought that there was a name clash: https://web.archive.org/web/20071010015641/https://martin.an... but I can't actually remember what that that wterm was. Not the same I would imagine. (edit: what I was thinking about was https://sourceforge.net/projects/wterm/)
Wow, finally an alternative to xterm.js?
Ghostty-web exists and is even API compatible with xterm.js (same engine that powers Ghostty):
https://github.com/coder/ghostty-web/
In fact, it looks like wterm's 12KB plugin doesnt offer full term emulation and uses ghostty to support everything else: