This won't work because it requires user input. People are lazy, and unless you are extremely disciplined I guarantee you will stop wanting to use that input box very soon after installing.
Buttercoin dropped the original JavaScript repository and rewrote the entire thing in Scala/Java. They are not releasing the new software, but planning on white-labeling their new product (very similar to bex.io).
[1] https://www.safer-networking.org/spybot-anti-beacon/