Interesting project, I've often looked for something like this but haven't found anything that does the job. I'm on a mac and can't wait to try this out. Can I ask what you're using adblock-rs for?
As for adblock-rs, I'm using it to detect and automatically disable requests related to ads and other unnecessary stuff. This helps cut down on noise and saves some time for developers.
Patching electron apps is fairly common. You can take a look at Spicetify or BetterDiscord to see the process in more detail