Sure thing, just a few layers and you’ll feel pretty safe. Keep the codebase tight, use least‑privilege everywhere, and isolate services in containers or VMs. Add runtime integrity checks—hashes, signed binaries, or a simple watchdog that alerts on any unexpected changes. Then layer on a behavioral monitor that flags any activity that deviates from a known baseline. Finally, don’t rely on one tool; patch, harden, and audit. With those layers, a zero‑day will have to earn a lot more effort than you have time for.