Actual Plugin and core:
https://www.spigotmc.org/resources/keycard-api.49743/
https://www.spigotmc.org/resources/recipesredone-1-13-api-hooks.49733/
Addons:
https://www.spigotmc.org/resources/keycardredstone.49961/
https://www.spigotmc.org/resources/keycardchests.49960/
This would be B O N K E R S if you add this minehut staff.