I don’t actually NEED the e-mail server part, I wonder if there is a build for the e/os without the e-mail sync?

It’s a i5-8600 3.1 Ghz 6-core.

as others have said it’s a pre release sample for testing and might have bugs but the QP4W tells you the processor type

https://www.cpu-world.com/sspec/QP/QP4W.html

Depends on the lock being actuated and the torque of the servo, I have some that can do 4.4 N-m.

https://www.amazon.com/high-torque-servo/s?k=high+torque+servo

A stepper motor would also work for sure.

If you have some electronic skill you can use espHome on a esp32 microcontroller to control an RC Servo motor.

https://esphome.io/components/servo.html

If you want out-of-box there are several electronic locks that will work.

https://community.home-assistant.io/t/smart-locks-compatible-with-home-assistant/590662

Family Dollar moved into these neighborhoods undercut the local stores forcing them out of business, so now these folks will have nothing. Fuck Family Dollar!