A minimal variable font viewer using HarfBuzz
SDL, FreeType, HarfBuzz
Supporting a feature request submitted to Love2D, I created an MVP example of how to load variable fonts, detect their (common) axis limits and style sets, and render them with FreeType and SDL3. As you may have noticed, all of those libraries are what Love (12+ anyway) is based on.
Try it out; it even includes a few example fonts, featuring GitHub’s very own Mona Sans:

