Here is a POC for one of my latest projects.
It uses Bullpress GM1 to compress an HTML page and send it to the client with an unpacker.
It also showcases ways to send functions with arguments over a SPA-like environment properly.
The unpacker will unpack the encoded sections and then unarchive the scripts to be ran, encoded in Base64.
After that, it hides the packed source code from the document (not devtools + sources) to prevent crashes.
Enjoy!