And yes, I know, there are Perl-Apps [2], Go-Apps [3] and so on which can be installed within minutes. But this extra step (including debugging which happens when compiling/installing from source) isn't going to help RDAP to get traction.
[1] https://packages.debian.org/experimental/rdap [2] https://metacpan.org/pod/App::rdapper [3] https://github.com/openrdap/rdap