Rainwater was dripping through a hole in the gas station awning onto a plastic patio chair that nobody ever sat in. Beside the propane exchange cage, a teenager in a stained hoodie was soldering wires onto a tiny green board using a USB iron plugged into a battery bank. Cars rolled past twenty feet away without noticing that someone was effectively assembling a wireless computer in public for less than the cost of a fast food combo meal. That feels important somehow. The ESP32 keeps appearing in places where expensive hardware usually doesn’t survive. Backpacks. Toolboxes. Cracked Pelican cases. Glove compartments filled with receipts and loose change. People build entire portable systems around it using parts scavenged from dead electronics and discount bins. Then those systems end up doing things that, ten years ago, would have required equipment with military aesthetics and four digit price tags. Most people still mentally file the ESP32 under “maker board.” A toy for hobbyists.…