You need to move the service file to the right directory, for starters.

Another suggestion for Darktable. It handles this case of mixed types transparently. It’s a big thing to learn, but extremely powerful and capable, and you don’t have to know all the corners of it, just enough for your workflow.

ESPHome is amazing - there’s so much you can do without writing a single line of code.

I have built a few projects around the platform - a boiler monitor that tells me temperatures and state of zone valves, an energy monitoring system tracking electricity usage and solar export, and a hot tub mod that inhibits the heater to reduce grid import and maximize self consumption of solar. They have all been rock-solid stable.