You can view the online version at https://diff.telethon.dev.

You can also view this locally after compiling by simply opening index.html in your web browser of choice.

To "compile" the site, you must run the following Python script:

python get-all-tl.py

This will clone or update the tdesktop repository, checkout each revision that affects scheme.tl files, and then analyze them to generate a "compact" diff.js difference. None of these files are included in the repository to greatly reduce bloat.

This is the front-end, and is just the skeleton and outfit of the application.

This has the logic to calculate the difference between any two layers, working with their deltas, and updating the frontend.