You may use this mod in a modpack as long as you do not make money off of it (Adf.ly, exclusive access from donations, etc.), you give credit (Linking back to this thread), you do not make any changes to the mod aside from config files, and you follow all of the other terms listed in the license below.
Bullseye is a simple mod that adds a handful of new arrow types, ranging from fire arrows that can catch blocks on fire, melt ice, and burn mobs, to dye arrows that can dye sheep, players with leather armor, various blocks, and more!
Check out the official Bullseye wiki for more information about the mod, crafting recipes, and more!
We have a Discord server! You can join with the following invite link: https://discord.gg/0loJvLMgvZi0q596