Maddie's hardware journey began when her dad introduced her to Lovable, leading her to lock herself in her room and build. She uses Cursor's agent view to brainstorm projects, get shopping lists, and triple-check hardware purchases, avoiding costly mistakes. Her thermal receipt printer accepts messages from a website, prints them via a Raspberry Pi, and logs them in a database, though it broke after running continuously since October. She also built a Twitter pager using a Raspberry Pi and the Spoke network, chaining Twitter API events through a Cloudflare Worker and email to the pager. Maddie advocates for building for fun over practicality, which she says is the fastest path to shipping. She also introduces the concept of a personal API that stores details like coffee orders and restaurant preferences, enabling both humans and AI agents to automate thoughtful actions without asking. Her dream project is a dot matrix printer for banners, and she troubleshoots AI by asking it to double-check its work.