Every time I find a game/software/extension/whateveritis that I’m liking I want to help developers to improve it and fix possible bugs, I can imagine how you feel .
I had the same. Worse, because some ideas are technologically above my skills.
I learned to write them down, or just post them on github.
Sometimes, another person fullfills my wishes. Sometimes, the idea will just simmer longer.
Making several rules parallel is not desirable, because rules interfere an testing becomes difficult.
One rule at a time, the ones you youself are capable of. No more.
Beware for it getting over your head.