For people who are thinking about getting into electronics: that project is very complex for what it does. Nothing wrong with it as long as your goal is to learn advanced fabrication techniques, but most people don't need any of this stuff for one-off, home projects with no strict low price / small size requirements.<p>The main culprit is that "custom ESP32-S3 board" - in this application, it is equivalent to a combination of a random off-the-shelf ESP32 board and a separate battery charger/protector. Half of the equipment on the list (hot air, hot plate, microscope, logic analyzer, etc...) is only needed for this board.<p>Weirdly enough, the rest of the device is a solid design, suitable for someone with "a few months" of electronic experience: lots of pre-made modules, and designing a carrier PCB for them. This means large and easy to solder 2.54mm hole spacing, regular soldering iron, no microscope, etc.. It's a really weird contrast for me....