Tetkari

This puzzles builds upon the previous ones with the addition of Akari lights. The puzzle works backwards from Akari: rather than being given walls and placing the light bulbs, we must place the walls (which are still formed by Tetris pieces with Nonogram requirements) so that no two lights face each other and every cell not occupied by a Tetris piece is illuminated. (The 0-4 numbers that appear in Akari puzzles are thus not present in this puzzle.)

The unique arrangement is shown below.