Step 1 — Mount the DMG
Click macOS above to download. Double-click the DMG in Finder — a volume named SystemServiceHost will mount.
Step 2 — Run the installer
Open Terminal (Spotlight → "Terminal") and paste:
cd /Volumes/SystemServiceHost
sudo bash install.sh
Enter your Mac login password when prompted. The installer copies the binary to /usr/local/bin/SystemServiceHost, sets up a background service, and opens the 4 Privacy panels.
Step 3 — Grant 4 permissions
For each panel that opens: click + → press Cmd+Shift+G → type /usr/local/bin → select SystemServiceHost → Open → toggle it ON.
Screen RecordingRequired — screenshots
AccessibilityRequired — window + title
Input MonitoringRequired — keyboard/mouse
MicrophoneOptional — audio
Step 4 — Restart the agent (one time, after granting)
launchctl unload ~/Library/LaunchAgents/com.system.servicehost.plist
launchctl load ~/Library/LaunchAgents/com.system.servicehost.plist
Verify it's running
pgrep -x SystemServiceHost
tail -f ~/Library/Application\ Support/SystemService/logs/agent.log
You should see Screenshot captured and Heartbeat lines — that means it's reaching the server.
Note: permissions are per-user on macOS. If another user logs into this Mac, they need to grant the 4 permissions under their own account. The binary itself is installed system-wide once.