The Grand Hello Project is an attempt to construct a chain of esoteric programs, each outputting the subsequent program's source, culminating in a simple "Hello, World!" program. Each program must not be a cheating program, in a way that is probably only obvious to User:Taneb.
Level 1: HQ9+
We start with a very simple language, practically designed for this purpose. The "h" keyword in HQ9+ outputs "Hello, World!", which is very handy.
Level 2: deadfish
Deadfish is another joke language, but one that is less obvious to ascertain its function by looking at it.