Tagging blog posts in jekyll is straightforward if you can use plugins like this one. However, GitHub Pages only supports a set of whitelisted plugins and I don’t see any blog-post-tagging related helpers in that list. To make Jekyll tags work on GitHub Pages, you need to create an index page for each of your tags, which is painful.
I say it automates the process a bit because while it removes the monotony of needing to remember to manually create a page for each tag you’ve created and then keep them all up-to-date as you tag more posts, you have to remember to run a command before committing and pushing your updates to GitHub pages. It trades one thing for the other, but the other is a lot less brain-consuming.
It also lets you tag posts normally, without the need to make your tags url-safe, eg:
--- layout: default tags: ["Hello World"] ---
Will work just fine and show in the browser at
Instead of having to hyphenate the tags for url-friendly concerns:
--- layout: default tags: ["hello-world"] ---
… and then un-hyphenate them later before displaying them on the page.
I did find helpful information elsewhere on the internet explaining how to achieve the same goal with a Python script and a little setup if that’s your cup of tea. Some of the setup was more involved than I felt should’ve been necessary (given what I wanted to do) so I tried to make something that only exposed a surface area that I felt was more relevant from a ruby-developer-writing-blog-posts perspective.