Setup K868-a32 and k868-a16s

[twostar]

I have 2 boards installed using KS2 firmware: K868-a32 and k868-a16s

What's the best way to set them up, i would like to use home assistant and MQTT but still want light to work in case home assistant breaks.

Should i setup boards using IFTTT, and only integrate MQTT for some scene automations, remote control and reading relay states?

That's how I'm doing it, HA if available but with the Kincony boards doing as much as possible natively via IFTTT rules.  This way even if HA goes down or disconnects, basic functionality will still be present.

Note that if you want to do anything more complex than very basic stuff you either need to use an external relay to feed a digital output to another digital input to chain IFTTT rules, or wait for updated firmware that implements this change request.