Open SmartHome System "Prototype for Everyone"

The thing looks to me like one of the many already existing cheap DIY solutions

It doesn't look like that to me. I am interested in technology and usefulness. The fact that we are very aware ourselves and, despite fascination, have decided against smart home applications is another matter.

Remove the "cheap" if necessary. I am really curious about what other software will be added and how it is set up from scratch. Then we can continue to discuss whether it is a "DIY solution" or not.

For me, it doesn't look like that. I am interested in technology and utility. That we are very aware of ourselves and, despite fascination, have decided against SmartHome applications is a different matter.

100% agreement on my part. We have also very consciously decided against SmartHome. I find it really reassuring that my conventional electrical system will simply work and will never demand updates or maintenance from me. Eventually, though, Shellys will be installed.

Give us just a little more time before you tear the project apart... OK?

I don't think anyone here wants to tear the project apart prematurely. We are all just terribly curious how you implement various details. Only the blockchain was torn apart, and rightly so. Speaking of blockchain: I still don't see the advantage of a blockchain. Why does a door, switch, lamp, etc. always have to know the history of data in a blockchain? What is the advantage compared to a completely conventional digital signature of control commands?

Apropos Blockchain: I still don't see the advantage of a blockchain. Why does a door, switch, lamp, etc. always have to know the history of data on a blockchain? What is the advantage compared to a completely conventional digital signature of the control commands?

I don't know, I already wrote that blockchain is not just about keeping the history. Nothing is a must, there are many ways to Rome.

I find it super reassuring that my conventional electrical system will simply work and will never require updates or maintenance from me

Here the same, but with modern electrical systems. I find it just as reassuring that it will always work and never demand maintenance or updates. But you don’t have to press anything anymore and can change everything anytime from the sofa.

But eventually Shellys will be installed

I think there should be no maintenance and updates? You are contradicting yourself.

I find it super reassuring that my conventional electrical system will just work and will never require updates or maintenance from me

But eventually Shellys will be added

That contradicts itself. If a security vulnerability appears with the Shellys or any protocol becomes vulnerable, you have to update. Especially with the Shellys, you should constantly keep an eye on the firmware changelogs. Those things are absolutely not error-free.
In contrast, I know numerous KNX systems that have been running flawlessly for well over 10 or nearly 20 years without any "intervention." KNX, to stick with the example, is old and comparatively slow, but also incredibly robust. Current competitors will first have to match that lifespan. Of course, when everything is brought onto IP and servers come into play, which ultimately are also online, you may have to take care of it here as well.