# Pastebin t2c7IihR
raku -e '


multi a(IO() $file where .f) { start { my $a = $file.relative: "/etc"; say $a; die "wrong: file: $file, a: $a" if $a eq "." || $a.starts-with: "../" } }
multi a(IO() $dir  where .d) { start await do for $dir.dir -> $file { a $file } }

await a "/etc"

'