I find that the regular `M-x shell` functionality gives you a reasonable approximation of the acme `win` workflow. The 'shell' buffer acts mostly like a regular

I find that the regular `M-x shell` functionality gives you a reasonable approximation of the acme `win` workflow. The 'shell' buffer acts mostly like a regular text buffer, so you can easily move around, edit things, and cut-n-paste. Pressing <enter> sends the current line of buffer text as command-line input.