HE.Net DNS and LetsEncrypt DNS challenge?

[Nomadadon]

I'm taking use of the Free DNS from he.net.  I do not have a web server up at this point, don't really want to.  But I want to generate some certificates using a letsencrypt nginx-proxy.  The configuration gives an option of 15+ DNS providers which should be used to match with LetsEncrypt but none seem to, all want a file available via API which I'm not running. 

Has anyone set this up so I can just use NPM as a proxy for some other services in my docker cluster?

[JRey]

I've used acme.sh's integration with HE DNS just fine.