A templating engine basically provides tools for effective metadata interpolation inside static files (templates). At web application runtime, the engine parses and replaces variables with actual content values. Finally client gets a HTML page generated from the template, where all metadata (variables, statements, expressions) has been proceed.
Raku ecosystem has a few modern templating engines: Template::Mojo (last commit on 12 Jun 2017), Template::Mustache (last commit on 25 Jul 2020 — it's alive!), Template6 (last commit on 20 Nov 2020 - active maintenance), Template::Classic (last commit on 11 Apr 2020), [Template