Bound to your Mac.
Local activation is tied to a device identity. A download key does not replace that activation.
Sumtuto.
Local trust,
clearly governed.
A local security environment that connects your Mac, its activation, and the applications allowed to execute.
Built for macOSApple silicon · Existing M4 Pro environment tested
Your access starts here.
Enter the download key provided by BlackGrid Labs to access the Sumtuto installer.
Download access verified
Your download key opens the installer. Local execution activation remains separate.
Development preview. Developer ID signing and notarization are pending.
Need a key? Contact BlackGrid Labs
YOUR MACLOCAL ACTIVATIONAPPROVED EXECUTION
One local environment. A clear boundary at every step.
Trust lives where
the work happens.
Sumtuto keeps the execution decision on your Mac, with explicit approval and a visible local status.
Approval before execution.
Participating applications request a short-lived approval before protected work can run.
A local view of trust.
See activation, component checks, and local audit status in one place.
Available deliberately.
This development preview was tested with the existing M4 Pro environment. New-Mac setup, M1 validation, Developer ID signing and notarization remain pending. Physical offline restart and sleep checks are also pending. Designed for local, device-bound execution; broader release certification is not claimed.