That PR has been merged and official nightly build is available on wandbox. But when I select a nim HEAD on wandbox, it uses nim-0.19.2 not 0.19.9.
Problem is this URL doesn't always return latest devel version (currently, it is ver 0.19.9), but it could return a latest stable version (0.19.2) [https://api.github.com/repos/nim-lang/nightlies/releases/latest](https://api.github.com/repos/nim-lang/nightlies/releases/latest) I'm studying about Github API to get latest devel version.