module/paths
array
boot.janet on line 2599, column 1
The list of paths to look for modules, templated for
module/expand-path. Each element is a two-element tuple, containing
the path template and a keyword :source, :native, or :image
indicating how require should load files found at these paths.
A tuple can also contain a third element, specifying a filter that
prevents module/find from searching that path template if the filter
doesn't match the input path. The filter can be a string or a
predicate function, and is often a file extension, including the
period.