Install with Pen
Pen.el on GitHub	https://github.com/semiosis/pen.el/
Tutorial	https://mullikine.github.io/posts/pen-el-tutorial/

Summary

The complex terminal built into Pen.el is a regular terminal that has an imaginary component.

You may connect the dockerized cterm to any host process simply by prefixing ct to any shell command.

Original article

https://mullikine.github.io/posts/imaginary-real-codex-complex/

This is how easy it is to use

• First start the pen server
• then prefix ct before vim or bash, or any command which runs on your host
  • it will then run that command inside pen.el and you get all the autocompletion, etc. so it’s a real terminal with Pen.el wrapped around it
• Now you can use pen with vim, or nano, or codexify anything!

Another example