I doubt that this is some pie-in-the-sky idea intended for some imagined future world where .yacy is an ICANN recognized top level www domain.
edit:
Here is a thread from way back in 2003 recording someones struggles with Jetty + Perl. Seems like it could be done then, but in a way that would be “slow”.
I might find some clue from the monks over on PerlMonks. Or perhaps it would be easier just to run Abyss. I think there is a Linux version, and I know for certain that Abyss can run all my scripts, as it is the web server I used for testing scripts locally.
Yes there is a Linux version.
More clues that Perl is compatible with Jetty: originally in Spanish.
Google english translation:
German:
I still have not read all the details but looks like it was working by the end.