FanBubble is a free macOS menu-bar app (beta). It stays out of sight while your Mac is calm. When the CPU load stays high or the Mac gets hot, a small bubble appears. See: - Top apps by CPU, grouped per app and updated every 2 seconds - A live CPU graph with your alert level, plus memory and swap - Ask AI: a plain-English answer (Status / Cause / What to do) from your own Claude or OpenCode CLI, only when you press Analyze - A menu-bar gauge that shows the load even when the bubble is hidden