I didn't look at the code, but I believe it's cursed because of what it does, not because it's unidiomatic Rust.

Terminal handling is a cursed realm. This project is basically all terminal handling, done in a place where no terminal is allowed to exist, and interacting with a badly documented environment that really does not wish it to exist. There are probably some unsafe blocks, but I don't believe the code itself is the extraordinary part.

This is PowerShell’s remoting model! It supports different transports (SSH, WSMan), keeps interactive elements on the client side, and effects actions on the server side.

Userspace terminals look like a very good solution to a large set of problems that really should not exist, but do nonetheless.

Whats wrong with the pty-forwarding approach used by SSH?

jupyter?