trait for limiting number of keys in hashes by usage

Quick hack to determine whether a shared libray is present

Get the kernel CPU information on Linux

Raku port of Perl's List::UtilsBy module 0.11

Raku port of Perl's Memoize module 1.03

rename files based on regular expressions

Make a singleton class that wraps the methods so they appear like class methods

Provide an immutable Map value type

Take a snapshot of the installed modules for later reinstallation

Port of perl whiff