one of the ways that libreJS allows you to annotate your files with a license is by providing a magnet link to the license you want to use
however, it has to be one of the magnet links from a list that is hardcoded into libreJS
also the x11 license magnet link has zero peers, at least as far as i can tell for leaving it active for several hours
you're welcome to try loading it if you want to: magnet:?xt=urn:btih:5305d91886084f776adcf57509a648432709a7c7&dn=x11.txt
@sneak that's what i was thinking actually, although i assume (?) this was either before IPFS was popular, or the FSF was just being weird and outdated as usual