[xela79]

wait... did this guy buy Apple products and expect it not the be a walled garden? wut? under what rock is he living

[mingus88]

Not only did he expect it, but he successfully did it and it was supported.

Did you not read the article?

HomeKit devices do not lock you into Apple in any way. This is just apparently a change in the Home app, which is not a requirement to use HomeKit devices.