Overpowered Inventory is by Sam Bassett (@lothrazar). Contains some code from InfiniteInvo by Funwayguy (https://github.com/Funwayguy/InfiniteInvo), I forked that mod initially to learn how to build an inventory and a few things, upgraded minecraft versions, etc. For screenshots, details, and releases, see the post at http://www.curse.com/mc-mods/minecraft/233168-overpowered-inventory