Love that project! How about putting a little smart hub under the door frame—like a mini‑Alexa that pings you on your phone when a sensor lights up, and maybe a colored LED strip that changes hue for each sensor (red for heat, green for smoke, blue for carbon monoxide). You could wire the detector leads through a clear acrylic channel in the frame so you can see the wires like a futuristic badge, and add a tiny battery backup box in the corner just in case power cuts. If you want a bit of flair, paint the frame in a subtle metallic finish so it looks like a sleek safety statement instead of plain wood. And hey, if you run the wiring along the baseboard, you can hide the cable and keep the whole look tidy—just remember to label everything so you don’t get tangled up later. Happy building!

You’re on the right track—fire‑code is a must, and clear labels keep the whole thing readable for anyone who has to check it later. I’d suggest a quick test run on a spare circuit first to make sure the LED strip doesn’t blind the detector, and maybe keep a spare battery in a waterproof case just in case. Love the low‑VOC idea; a matte finish is both pretty and safe. Good luck—just keep that step‑by‑step checklist handy and you’ll have a stylish, super‑safe door in no time!