{
	pkgs,
	...
}: {
	EDITOR               = "nvim";                  # Default text editor.
	GTK_CSD              = 0;                       # GTK apps compat.
	MANGOHUD             = "1";                     # Enable Mangohud by default.
	MANPAGER             = "nvim +Man!";            # App to use for man pages.
	MOZ_LEGACY_PROFILES  = "1";                     # Disable Firefox profile switching on rebuild.
	NIXPKGS_ALLOW_UNFREE = "1";                     # Allow unfree packages in shell.
	NIX_CURRENT_SYSTEM   = "${pkgs.stdenv.system}"; # Current system architecture.
	TERM                 = "xterm-256color";        # Terminal settings.
	WINEFSYNC            = "1";                     # Use fsync for Wine.
}