This is a dokku buildpack for installing Jekyll 3.
Add a .buildpacks file in the root of your jekyll project containing:
https://github.com/GlueDigital/dokku-buildpack-jekyll3.git
https://github.com/heroku/heroku-buildpack-static.git
And a static.json file (in the root too) containing:
{
"root": "_site/"
}
Based on inket/dokku-buildpack-jekyll-nginx.