This is neat. Would you be open to a PR that adds a basic build system setup, so the output files can do PWA offline stuff without depending on PHP on the serv

This is neat. Would you be open to a PR that adds a basic build system setup, so the output files can do PWA offline stuff without depending on PHP on the server? This also allows other conveniences (like not needing to hardcode absolute paths for asset files), but adds a step before being able to put the built version of the source online.