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This is a tiny Sinatra app that dynamically lists the files inside a public/ directory and renders them as links. It also supports a simple sort toggle via a query parameter (ascending vs descending), which is a nice, clean example of using request params to change server-side behavior.

Skills demonstrated:

•     Ruby
•     Sinatra
•     ERB templating
•     HTTP query params (sorting with ?sort=desc)
•     Filesystem exploration (Dir.glob, File.basename)
•     Basic HTML output