homebridge-shelly VS homebridge-raspbian-image

The only thing I could think of is using something like a Shelly Plus 1 in HomeKit (firmware/Homebridge paired to a strike of the appropriate voltage.

This or this.

You could use a generic LED strip and a Shelly RGBW2 flashed with shelly-homekit or use it without flashing through homebridge-shelly

They’re not HomeKit compatible by default (nothing DIN rail mounted will be) but could potentially be supported using Homebridge depending on which relay you go with.

homebridge-shelly

Yup! This would be my recommendation. A Shelly 2.5 if you want to add two independent circuits to HomeKit. Not native, but works fantastic! The Shelly can be added to HomeKit via a Homebridge plugin or (my personal favorite) Mongoose HomeKit firmware. Plus you can still use your normal-looking wall switches!

Either a Shelly 1, 1PM, or 2.5 depending on if you just want on/off, power monitoring, or need a dual channel option. Can be integrated to HomeKit via Homebridge or my favorite, Mongoose Shelly HomeKit.

And then as CautiousAd said either Mongoose HomeKit Firmware (my personal favorite) or Shelly Homebridge will get you up and running 👍🏼

I can't recommend Shelly enough, the Shelly 1L is a no-neutral relay that can go in behind your switches and tends to be pretty solid. You can control them through an app, flash with shelly-homekit, or use homebridge-shelly to control them.

Following this guide on the repo, I am running into this warning: [deCONZ] warning: not a deCONZ gateway

For anyone new to this game: Homebridge is far better and far easier than HOOBS to maintain over the long haul, regardless of HOOBS marketing insisting otherwise. And don't just trust me on this, ask any popular plugin developer.

I just image it with rasberry pi imager using the homebridge instructions - https://github.com/homebridge/homebridge-raspbian-image/wiki/Getting-Started.

It has RTL8152B. The doc for raspian HB image here https://github.com/homebridge/homebridge-raspbian-image/wiki/Supported-Raspberry-Pi-Models

Which is different from Ring's Doorbell, but the fact still remains, Ring doesn't have a smart watch app, nor is it natively HomeKit compatible. However if you set up Homebridge for it, you can make it so.

The same Raspberry Pi that Homebridge is on, I'd imagine. It's included as an extra package in the official installer image: https://github.com/homebridge/homebridge-raspbian-image/wiki/How-To-Install-AdGuard-Home

As for the original issue - you may have downloaded a corrupt image - if you really want to use their image (rather than build the OS then install) download it from here but check the sha256 of the downloaded file before using Etcher. I use QuickHash on my Mac but other programs exist for all platforms.