While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
I don't know anything about the Internet Archive site - Is it legitimate? Or likely to leave my hardware with unwanted baggage? Are these videos likely to be taken down?
Here's a quick search on the site that turns up 59 AGI videos (and some unrelated), but maybe there are more:
For those who don't know, the American Gunsmithing Institute (AGI) videos are generally very, very useful. And they cover a wide variety of firearms. If anyone has a list of the AGI video titles they can share here, it might make searching for them on the site much easier.