TRMNL
One gadget I forgot to mention in yesterday’s post was the TRMNL. Externally, it’s a small e-paper (7.5-inch) display in a minimal frame that can be mounted on a vertical surface or left to stand on a desk or table. It’s very lightweight, and can go weeks or months between charges (depending on how often you set the screen to refresh.) Internally (though you don’t really need to know anything about this as an end user) it’s an ESP32-based computer that can refresh itself over the internet and provide ambient information based on plugins that you can configure on the TRMNL website.
I haven’t written any plugins myself yet, but the documentation for doing so is available and seems pretty straightforward. Plugins are built in a Ruby-based templating system.