free cctv design tool

https://xeon-wiki.win/index.php/Integrating_Floor_Plan_Security_Planning_into_CCTV_System_Design

The free CCTV design tool I've been using lets me drag cameras onto a floor plan, adjust angles, and instantly see coverage zones. It calculates resolution and storage needs based on my choices. Perfect for planning a home security setup without expensive software. Saves a lot of guesswork when placing cameras.