- A toggle has been added under `users.users.<name>.enable` to allow toggling individual users conditionally. If set to false, the user account will not be created.
- New hooks were added:
-`writableTmpDirAsHomeHook`: This setup hook ensures that the directory specified by the `HOME` environment variable is writable.
-`addBinToPathHook`: This setup hook checks if the `bin/` directory exists in the `$out` output path and, if so, adds it to the `PATH` environment variable.
-`gitSetupHook`: This setup hook sets up a valid Git configuration, including the `user.name` and `user.email` fields.
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