can you explain to me how fleet run a script is implemented under the hood

Greetings, here are some good reads on script execution https://fleetdm.com/releases/introducing-cross-platform-script-execution https://fleetdm.com/docs/using-fleet/scripts#step-1-enable-script-execution

if it is possible I \want to know how it is implemented under the hood

Maybe this helps? https://github.com/fleetdm/fleet/tree/main/orbit/pkg/scripts Fleet/fleetd (formerly known as orbit) is open source. Let me know if you have any questions