Request for Standalone Signed Installer for SysOptimizerTool on macOS Sequoia 15.5

[ericsegg]

Hi Audirvana Team,

I’m running macOS Sequoia 15.5 and experiencing a persistent issue where Audirvana Studio is unable to communicate with the SysOptimizerTool helper app.

Despite installing the app correctly into /Applications, granting Full Disk Access, and attempting to run the helper manually, macOS blocks the registration of com.audirvana.SysOptimizerTool with launchctl bootstrap, returning the error:

Bootstrap failed: 5: Input/output error

I’ve confirmed:

• The binary is present in /Library/PrivilegedHelperTools
• Permissions and ownership are correct
• The .plist is properly formed
• Terminal has Full Disk Access
• SIP is enabled and system integrity is intact

This appears to be due to macOS requiring signed binaries for system daemons, and the current helper seems unsigned or not properly code-signed for Sequoia’s stricter requirements.

Can you please provide a standalone, signed .pkg installer for the SysOptimizerTool helper or official guidance for resolving this issue under Sequoia 15.5?

Thanks,
Eric S

[Agoldnear]

Welcome…

Just for reference… I just downloaded macOS 15.5 and launched Audirvāna Studio and opened ‘Advanced Settings’ showing my System Optimizer settings… Playback was as expected…
(Note; I am not part of the development or support team)

[Djm1960]

As per @Agoldnear comment. Sysoptimiser installed correctly for me after an update to 15.5 with the AS installer 2.10.2. Sysoptimiser runs fine as per screenshot, your issue is not related to the installer it would appear.