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Privileged Helper
ventaphobia edited this page Apr 23, 2026
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The helper is smc-helper, installed as ventaphobia.smc-helper under /Library/PrivilegedHelperTools with a LaunchDaemon plist. The app bundles it under Contents/Library/LaunchServices and blesses it through ServiceManagement.
SMCHelperManager is app-side. It detects missing/stale installs, blesses or repairs, probes XPC reachability, executes fan commands, reads SMC values, and exposes status messages.
smc-helper/main.swift is helper-side. It can run command-line commands such as set, auto, and read, or run as an NSXPC service. It opens AppleSMC, validates inputs, writes fan mode/target keys, and exposes control metadata.
The helper is optional. Documentation and UI should keep the monitoring-without-helper path clear.
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