Another mod, another summary.
This one's easy, you have 5 tiers of coins[iron, gold , emerald , diamond and netherite], inspired by the game Terra ria, each coin can be made and also turned into the other higher or lower values, 9-->1 and so on. There is also currently 2 ways of portable cash storage and coin storage and a tool used for making said coins. for more info check screenshots and as always use JEI.
https://www.curseforge.com/minecraft/mc-mods/jei
Great for quest rewards, even better for servers and scenarios.
Can you use it in a modpack? ofc you can!