While we could spend an entire post discussing different automation ideas and the future of the smart home, this post is meant to simply review the products of the manufacturer Deltaco that I'm currently using.
The camera SH-IPC09 is the latest addition. I bought it on the second hand market for close to half the price. I was happy with the image quality, it also offers unique mounting methods, for example with a magnet socket. The camera uses an internal battery that seems to have a fantastic battery life and it's easy to connect to when not at home.
The door sensor SH-WS02 is a device consisting of two parts essentially (+ a part that keeps the sensor on the wall). The sensor reports whenever the magnet and the sensor is separated or close to each other. You can set this up for simple notifications or more advanced triggers such as turning the lights on.
The smart plug SH-PS01 is a socket that you put in the electrical sockets in the wall for example. It allows you to remotely turn the electricity on or off. You can also use it with additional triggers.
In my collection I also use regular smart bulbs, I found these to perform best with white light (both warm and cold). The colors are great but a bit weak in their output. You can schedule these lights and use triggers with them as well.
One thing that you have to keep in mind is that the devices across the board are reliant on wifi. I changed network SSID (the name displayed in the list of available networks) and then I had to reconfigure them. A simple task, but noteworthy nonetheless.
It's also important to keep device compatibility in mind, the Deltaco products are in large compatible with Google Home and based off of Tuya protocol which means Tuya can control the devices, but not necessarily the other way around.
I have yet to test all the functions when being away from home, but the camera has performed above expectations. Management is done through the phone app (in my case Android).