> I might not need to add anything to .*rc files if rtx is in my path

Generally speaking you'll probably want to use `rtx activate` in your shell rc. However you could use the shims instead if you just wanted to add a directory to PATH instead.

Of course you'd be getting rid of one of the major selling points of rtx by using shims, but it's so much faster than asdf the shims aren't as bad as they are in asdf.