it is so much slower to start than perl, that you don't want to run it for quick one-off tasks
~ > time perl -e ''
perl -e '' 0.01s user 0.01s system 10% cpu 0.179 total
~ > time raku -e ''
raku -e '' 0.09s user 0.04s system 53% cpu 0.232 total
~ >