I just tried to view the ‘How to Install’ link, it is broken. I found a YouTube video where the person broke KiCAD twice, talks too fast and there is no CC for us old guys. Had the person rehearsed before making the video and cleaned up after ‘then’ created the video things wouldn’t be so confusing.
Thank you for reaching out to us on the TechForum.
The link should take you to our brief post on how to import the Digi-Key KiCad Library here on the TechForum.
I hope this helps.