Unpopular Opinion: Don’t Use a Raspberry Pi for That
I often end up giving the opposite unpopular opinion: RPis are overkill for a lot of DIY IoT uses. Want to have something that opens your curtains or flashes some RGB lights in your hallway or whatever? Pick yourself up an Arduino / ESP32 with built-in WiFi, often an Ethernet port, tons of GPIO. It consumes milliwatts of power, boots in under a second, and is cheap enough to be disposable.