I bought a mini PC with Home Assistant already installed off Amazon. There are tons of different ways to get it up and going as you know. Really what works best for you.
This is the thread that I used when researching the Home Assistant Device Bridge. This can explain it much better than me.
It really is very simple and opens up a world of possibilities and if you are Iike me and prefer the Hubitat system and interface then you can continue to use it.