Nice, wouldn't mind trying something like that myself. I'm not sure if we get enough sun though ;) I put a PiZeroW in our garden as a wildlife camera in an IP

Nice, wouldn't mind trying something like that myself. I'm not sure if we get enough sun though ;) I put a PiZeroW in our garden as a wildlife camera in an IP68 case with a waterproof USB connector for power, but alas sometimes it possibly overheats or becomes unresponsive and requires switching it off/on again. (It hit around 90C once, I have since added a little heat sink, but not sure how much that helps in a closed case). I also found I had to slightly overvolt the PiZero in the config to get the camera to function correctly. I've been trying to see if there's any interesting serial output when it becomes unresponsive by adding an ESP32 to it. But I haven't quite got the hang of programming that yet.