http://yannesposito.com/Scratch/en/blog/Hakyll-setup/ http://www.blaenkdenum.com/posts/the-switch-to-hakyll/
Build is done via some CI (Travis, CirceCI, GitLab CI)
https://www.stackbuilders.com/news/dr-hakyll-create-a-github-page-with-hakyll-and-circleci http://timbaumann.info/posts/2013-08-04-hakyll-github-and-travis.html https://begriffs.com/posts/2014-08-12-create-static-site-with-hakyll-github.html http://chrisdone.com/posts/hakyll-and-git-for-you-blog
https://pages.gitlab.io/ https://about.gitlab.com/gitlab-ci/ https://gitlab.com/pages/hakyll