After cloning the repo and installing all dependencies, running bundle exec jekyll serve throws an ERROR.
Here is the output using --verbose:

The error:
C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/liquid-4.0.3/lib/liquid/variable.rb:124:in `taint_check': undefined method `tainted?' for "en-US":String (NoMethodError)
return unless obj.tainted?
^^^^^^^^^