System bugs demand attention, whether you're debugging code or warning a teammate about a glitch. Use 🔧🐞🚫 when reporting a fix in progress, or ⚠️💻🐛 in a quick status update about a problem on the server. For thorough investigations, 🐛⚙️🔍 signals the hunt is on. These combos fit perfectly in developer chats, bug trackers, or even casual tech support DMs.