It depends where the task runs. ChatGPT tasks and Claude's cloud tasks do not need your computer. Claude Desktop tasks and /loop do, and a sleeping laptop skips them.
Same idea as Zapier, with a visual workflow builder, AI steps and the option to host it on your own small server for free. More assembly, no per-task bill.
When something happens in one app, Zapier does something in another. Thousands of apps, no code, AI steps in the middle. Easy to start; the bill grows.