I recently discovered the Home Assistant project and wanted to run it myself.
Goal was to run it on a Raspberry Pi together with those cheap Xiaomi Aqara sensors but without the Xiaomi gateway. As these are Zigbee devices you need a Zigbee gateway (Conbee II stick) and the deCONZ add-on.
I was totally overwhelmed with all the things, relationships and acronyms you need to understand to get a HA system up and running. So I documented my installation process in this blog post for all the newbies like me out there:
Hope it helps! Any comments / suggestions are highly welcome as I am still a total beginner in this space.