Very cool! Windows Terminal will let you use hlsl files to define post-processing shaders so you could achieve this as a plug-in to windows terminal as well!
Yea the extent to which you can make custom terminal shaders for the Windows Terminal is pretty unbelievable. This repo has a huge collection of crazy stuff (including a better CRT one):
There's another shader floating around somewhere that includes the wraparound effect along with the phosphor effect (it can also be configured for full color support; doesn't have to be black/green)
I wonder if you could plug in some of the crt emulation shaders from retro/emulation scene to terminal... It's just pixel shaders so should be fairly feasible, maybe just some cross-compilation?
https://github.com/Hammster/windows-terminal-shaders