It's a hardware/software exploit, so it's nowhere near as easy to install as Wii Homebrew:
geohot: i have a button on my FPGA board
geohot: that pulses low for 40ns
geohot: i set up the htab with the tons of entries
geohot: and spam press the button
geohot: right after i send the deallocate call
My Mario Kart Wii friend code: 2707-1866-0957