I saw a smart home the other day and I got to admit, my caveman DNA was activated and I got jealous. My caveman DNA demands that I also make my home a smart one.

The thing is, I kind of don't really know how and where to begin, thus why I came to you guys for help.

I know that I want to do this gradually, over months or years, apply new smart devices like smart plugs, sensors, cameras, and the like little by little. As for appliances, only when mine stop working and need replacement.

I also want to be able to control my AC, my electric shutters, check how much energy my house is using and how much my solar panels are producing. These ones, I admit, are the ones that I'm most unsure about on how to go about it. I'm not an electrician, and might need to hire one.

As for a server, that's already taken care off. I have a synology server, or a raspberry pi 5 if for some reason my synology can't handle it. I know of "Home Assistant", is this the best software or do you recommend others?

Needless to say, I don't want to be dependent on companies or cloud services. This is a self-host project. I'm tech-savvy, I don't mind to get my hands dirty, but I do want to build something that is stable. "Set it and forget it" kind of thing.

So my question are:
1- Do you have any recommendations of where I should start? Like for example, light switches first, then smart plugs, etc.
2- If I should take into consideration the number of devices. Could they potentially clog my router or my wifi AP's if they get too many? If yes, is there a way to prevent this?
3- Do you have any article or guide or video that you recommend me checking out?
4- Do you have any tips, advice or warnings in general? Like problems that you know that I'll run into later, or things that you don't think are worth smartifying, etc (whatever you want to say, give it to me, I'll appreciate anything)

Its screen and touchpad work as well as they always have, even though it's largely been gathering dust beneath my desk for the past two years. It's obsolete and too slow for modern (read: under 7 years old) macOS, but it's not broken.

I could install Linux and set up a server, but my Pi has already filled that role.

This topic came to mind because a friend sent two truly broken laptops—including a MBP of similar vintage to the one discussed here—home with me to send to electronics recycling. Kicking about for other opinions before I add this computer to the pile.

I went to university for computer science up until the pandemic started. It was great. I remember working on so many projects that were basic but a lot of fun and others that were a lot more complex but still fun and rewarding. For example, one of the staples of beginner projects is Conway's Game of Life. I remember building that in HTML, CSS, and Java Script. One of my other favorite projects was a website for alum to visit to see alumni news and events, and also to lookup other alum.

What were your favorite projects when learning to code?