Semi-Automatic Ice Farm

A redstone-powered, semi-automatic ice farm. The bowl fills with water, then blocks pop up to give more surfaces for the water to freeze on. When it's ready to harvest, the block can be retracted. Features lights to keep the water melted while filling, retractable blocks for freezing, and an easy-to-use on/off switch. Also features wool block-based construction to help prevent digging through the floor with a pickaxe and flooding the redstone. (This farm is semi-automatic because you still need to mine the ice with a pickaxe.)

Designed in Java Edition. Must be built in a cold biome.