Xiaomi devices with out the gateway?

[bobbles]

In a word, yes.
You will need the custom DH's though.
Do a search and I'm sure you will find them.

[Deprecated] Xiaomi / Aqara ZigBee device drivers (possibly may no longer be maintained)

NOTE: Although many users have had great success using them, Xiaomi / Aqara ZigBee devices are NOT officially supported or guaranteed to work on the Hubitat Elevation platform. I am maintaining a collection Xiaomi device drivers for Hubitat in a GitHub repository, at veeceeoh/xiaomi-hubitat. These device drivers are based on the bspranger/Xioami repository of device handlers for SmartThings, but with significant modifications and improvements for use only on the Hubitat Elevation hub platform. …