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On October 19, 2026, the author adjusted the compilation and build parameters to get the app running successfully. According to a report published the same day by the Tencent Cloud Developer Community, this fix targeted eul, an open-source menu bar monitoring tool that had gone five years without updates, enabling it to once again read CPU temperature and GPU information on a Mac Mini 6 with an Apple M6 chip. The report states that the root cause was that SMCParamStruct changed from 80 bytes to 88 bytes in arm64 user space, and that all 135 temperature keys on the M6 are of the flt type rather than the sp78 used in the Intel era. After the fix, 2,066 SMC keys are dynamically enumerated, 126 valid sensors are retained, and the logic for Intel models remains compatible. Currently, this event has only this single report of the same occurrence, with no subsequent developments.
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The author adjusted the compilation and build parameters to make the app run successfully
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Oct 19
Tencent Cloud Developer Community
eul, unmaintained for 5 years, is fixed with Workbuddy and restores temperature and GPU monitoring on Apple M6
The open-source menu bar monitoring tool eul, unmaintained for 5 years, completed a low-level fix with Workbuddy and once again reads CPU temperature and GPU information on the Mac Mini 6 with the Apple M6 chip. The root cause is that SMCParamStruct changed from 80 bytes to 88 bytes in arm64 user mode, and all 135 temperature keys on the M6 are of the flt type rather than the sp78 type from the Intel era. After the fix, it dynamically enumerates 2,066 SMC keys, retains 126 valid sensors, and remains compatible with the logic for Intel models.