Jcraft is just a little mod. Here's a list of features:
Dressers (no function)
Void Essence (Portal Lighter)
How to build a portal:
Shadow portals are made with Stone. Lit by Void Essence.
Book Blocks are crafted by filling the crafting table with Books.
Dressers are crafted using 3 dresser droors in a vertical line and then filling the rest with oak wood.
Dresser droors are crafted with one gold nugget with wood on both sides of it.
Noodles are crafted with a bowl, with an egg, wheat, and water bucket above it. They give you the bowl back after being eaten.