Is this the font awesome you refer (I'm assuming it is the Free for Web white button)?
I changed the link in layouts.html from
to
<link rel="stylesheet" href="{{=URL('static','css/fontawesome.min.css')}}"/>
First I copied just the fontawesome.min.css to the static/css folder, but that didn't work.
The I copied everything in the fontawesome-free-5.7.2-web.zip to the static folder, but that also didn't work.
For each try I restarted web2py.
Am I missing any required step?
Thanks,
JM