WOFF2 to self-extracting HTML brotli compressor thingy for code-golfing competitions

• Code by Senokay / Lifthrasiir (see https://gist.github.com/lifthrasiir/1c7f9c5a421ad39c1af19a9c4f060743)
• More info in his epyt game (see https://js1024.fun/demos/2022/18/readme)
• Full brotli's dictionnary: https://gist.github.com/klauspost/2900d5ba6f9b65d69c8e

How to use it?

• Install NodeJS
• Put a txt file to compress in the same folder as the repo files (ex: test.txt).
• Your txt file must be a JS script.
• Run node packer.js test.txt test.html

What does it do?

• The script compresses your txt file using the power of Brotli's dictionnary (and Brotli's advanced compression levels).
• The compressed code can't be read directly by the browser, so it's embedded in a WOFF2 file (which supports Brotli compression).
• A HTML file is generated, which is a self-extracting WOFF2 file.
• When you open the HTML file in the browser, the contents of the txt file is evaluated.
• WOFF2 garbage is also displayed in the browser, but you can use JS or CSS to hide it.
• In many cases, the compression is much better than simply zipping the txt file (ex: test.txt becomes a 1.9kb file with this and 2.3kb with zip only).