pub fn system_config_file() -> Option<PathBuf>Expand description
Returns the path to the system configuration file.
On Unix-like systems, uses the XDG_CONFIG_DIRS environment variable (falling back to
/etc/xdg/uv/uv.toml if unset or empty) and then /etc/uv/uv.toml
On Windows, uses %SYSTEMDRIVE%\ProgramData\uv\uv.toml.