{
	writeShellApplication,
	packer,
	...
}:
writeShellApplication {
	name = "validate";
	runtimeInputs = [
		packer
	];
	text = ''
		shopt -s globstar
		packer init sources
		for vars in distros/**/*.pkrvars.hcl; do
			packer validate -except=upload "-var-file=''${vars}" sources/
		done
	'';
}