I work on NestMux, so read this the way you would read anything written by someone with a stake in it. Everything I claim about other tools comes from the documentation each vendor publishes, and I link it so you can check instead of trusting me.

The setup

Running one coding agent is easy. Running four is where it gets interesting, and where it breaks.

Four agents on the same repository will overwrite each other's files. They will fight over the same working tree, the same branch, and, if you use more than one provider, the same credentials directory. The usual answer is one git worktree per agent, one terminal pane per worktree, and some way to see all of it at once.

That last part is where Windows falls out.