Hardware temperature and fan speed monitor for Apple Silicon Macs. Summer is still under development.

• Real-time CPU temperature monitoring
• GPU temperature tracking
• Battery, Enclosure, Wi-Fi, Storage sensors
• Fan speed display
• Native Universal (ARM64 and Intel) performance
• Optimized for M1/M2/M3/M4

• macOS 13.0+
• Apple Silicon Mac (M1/M2/M3/M4) or Intel Mac
• Xcode 15+

1. Clone repository
2. Open Summer.xcodeproj
3. Select your Team in Signing & Capabilities
4. Build (⌘B) and Run (⌘R)

• Build: Compiles Universal SMC binary from source
• Sensors: Reads temperature and fan data via SMC
• UI: SwiftUI displays real-time hardware stats

• App code: MIT
• SMC binary: GPL v2 (from smcFanControl project)

This project interfaces with Apple's System Management Controller using a binary tool based on the original smc utility.

• SMC Tool: Original implementation by devnull (2006).
• Contributions: Portions Copyright (C) 2013 Michael Wilber.
• License: This component is licensed under the GNU General Public License (GPL) version 2 or later.

Special thanks to the open-source community and the authors of smcFanControl for maintaining and distributing these tools over the years.