This mod allows you to modify the behavior of milk buckets. By default it doesn't change anything. In the config you can change how much milk affects the duration and amplifier as multipliers. You can also have a black- or whitelist for effects milk affects.
Can I use this in my modpack?
Of course, this mod is meant for balancing.
Can you port it to forge?
No, I won't but anyone who wants to can do it.
Can you port to any other minecraft version?
My goal is to maintain this mod for the latest minecraft version. If you really need it you should be able to port it fairly easily.