#HTE
Demonstrating the Simple Technique of Using Magnets for Hidden Cabinet/Drawer Locks
You might not use this to build a gun safe, but here B-Star Crafts demonstrates the simple technique of using magnets to provide low-level cabinet and drawer security:
While the techniques are basic, the video seems to have scratched many an itch; at press time it had 13 million views and counting.
https://www.core77.com/posts/110518/Demonstrating-the-Simple-Technique-of-Using-Magnets-for-Hidden-CabinetDrawer-Locks