Is your feature request related to a problem? Please describe.
Provisioning a project with the right environment variables is often very difficult. It's unclear which tools or scripts need to be run and what dependencies I need.

Describe the solution you'd like
I'd like for Warp to automatically embed shared env vars and secrets when I cd into the appropriate directory.

Additional context
Technically, two possible ways we could implement this are by integrating with tools like Nix or Docker. We could also investigate building our own format for representing shared environment variables on a per directory/repo basis. Using our precmd/preexec hooks, we could source these environment variables as necessary.