If this is just a single sensor input needed, and you don't mind a bit of a hack, you can get fully local YoLink input by using their D2D (Device to Device) pairing. No internet or Hub needed.
We have a Canada Post community mailbox halfway up the street, and found a YoLink contact sensor works from inside the metal community mailbox. Our box is in the middle, so there's a lot of metal and distance between the sensor and my house. The D2D connection is to a YoLink relay mounted on the wall next to my garage door, relatively far back from the street.
I configured the D2D pairing so that when the YoLink contact sensor opens, the relay turns ON and when it closes the relay turns OFF. Attached to the relay is an IKEA Shortcut button I wasn't using for anything, but you can use almost any Zigbee or Z-Wave contact sensor as well. When the YoLink relay turns OFF, that is transmitted to the hub via the Zigbee Shortcut button as a released event. The event triggers a rule to send me a message that there is activity at the mailbox.
If you're primarily or strictly a Z-Wave user, then there are many Z-Wave contact sensors with built in terminals that make wiring this pretty straight forward. If you need to reverse which events occur, you can either reverse the Z-Wave or Zigbee relay state, or it's also simple to change the order of the YoLink D2D pairing to each state of the relay (ON/OFF).
One note of caution for anyone using YoLink devices or experimenting with them. I have learned that they will go offline if there are too many events, too close together. You need at least 6 seconds between events. If you keep exceeding that frequency, the D2D connection will eventually go offline. The only way I have found to re-establish the connection is to unplug the relay for 10 minutes.
I don't own a Yolink hub, so I don't know if this is something that only occurs with their D2D connections, if it's a LoRa limitation, or if it's been solved in a firmware update in which I'll never be able to do without a hub. This is documented in their relay FAQ, so it may be something they cannot solve.
Why does the YoLink Relay disconnect frequently?
Insufficient interval time between device operations. If the device is operated too quickly or repeatedly, it may not fully respond, leading to connectivity issues. Ensure that the interval time between operations is more than 6 seconds to avoid this problem.
I soldered and used a 5v to 3.3v buck converter so I never need to worry about batteries for the IKEA Shortcut button I used, but that is optional of course.
