I will say the same thing i've told every other installer at this point.
You need to learn the system inside and out, before installing it for others. This is due to the fact that the system is extremely complex.
Yes, I did say 30 minutes to write a lighting system driver, if i have all the protocol sheets, etc.
But there is a lot more than writing device templates.
Please understand, we've dealt with way too many people who have said the exact same thing you've told us in reply, who quite frankly, see dollar signs, before they have their sense in check. It has cost me hundreds of hours in support, that has taken away from very important development time, as I had elected to undo damage that these installers had done for customers, and who the installers had subsequently dumped on us for support. I say, installers, as plural, because this has happened more than once, with different installers.
I provide support to individuals setting up their own systems, and as a matter of principle, do not provide this support to installers unless i am paid for my time.