Think you need a monthly subscription to keep your home secure? Think again. In this episode, Chelsea Miller breaks down exactly how to build a fully functional home security system that operates entirely without cloud fees, data-sharing agreements, or the recurring charges that most companies bake into their business models. Whether you're fed up with Ring's latest price hike or starting fresh, this checklist covers everything from camera selection and local storage hardware to the protocol pitfalls that trip up most DIY builders.

• Not all "local storage" cameras are truly offline—some still require cloud authentication to function or lock features behind paywalls after 30 days, so look specifically for cameras with RTSP protocol support and microSD slots that work without internet access.

• Zigbee and Z-Wave motio ...