Did you mean “my own openhab-cloud instance” ? or something else ?
Yes of course, it was my first option, but I also use Google Assistant (working out of the box with myopenhab.org) … and to make a personnal openhab-cloud with google assitant / alexa working was very complex …
So I search a simple way to expose only some items to IFTTT (with some security concern) , and didn’t find one, so I did this (check the code only few lines).
And more, this gateway does not need openhab-cloud nor myopenhab.org.
Very easy/simple to use and light (I am running it on my RPI3 with openhab)
By the way, I am sure it can help someone with the same need I had.