OpenModLauncher-Base/sources.json

{
	"minecraft": {
		"versions_manifest": "https://launchermeta.mojang.com/mc/game/version_manifest_v2.json",
		"asset_base": "https://resources.download.minecraft.net/"
	},
	"custom": {
		"files_manifest": "${CUSTOM_MANIFEST_URL}"
	}
}