Another App As A Home-cooked Meal

I&rsquo;ve been working on another app as a home-cooked meal. A few years ago we had some solar panels and a battery installed, so I cooked up an app to show the position of the sun, how much energy was coming from the solar panels, how much was going to the battery and how much was coming from the grid. I wrote it &ldquo;caveman&rdquo; style: i.e. by hand, without LLM assistance.