depot/third_party/nixpkgs/pkgs/tools/networking/badvpn/default.upstream

url https://github.com/ambrop72/badvpn/releases
version_link '[0-9][.]tar[.][a-z0-9]+$'
version '.*/([0-9.]+)[.]tar[.].*' '\1'
	`url https://github.com/ambrop72/badvpn/releases`
	`version_link '[0-9][.]tar[.][a-z0-9]+$'`
	`version './([0-9.]+)[.]tar[.].' '\1'`