I n another post I described a series of manual steps to bypass the restriction of not being able to use non-whitelisted plugins. By default, GH pages only allows whitelisted plugins, a limitation limitations enforced by GitHub by the usage of running Jekyll in safe mode, which is the GitHub’s recommended way for the Jekyll configuration. This restriction also applies when choosing

I tried out adding building the site using the “Jekyll Actions” action (helaili/jekyll-action) as recommended by Jekyll itself, but I ran into problems because I got this error and was too lazy to hunt it down.

env: can't execute 'ruby-2.7': No such file or directory

Luckily, I found the Jekyll Deploy Action by jeffreytse who works out of the box. It will build my site including the custom plugins. Thanks, Jeffrey!