Espruino Pico has everything you need pre-installed. It can be used from virtually any device with a USB port so you can get started in seconds.
JLCPCB – Prototype 10 PCBs for $2 + 2 days Lead Time
China’s Largest PCB Prototype Enterprise, 300,000+ Customers & 10,000+ Online Orders Per Day
Inside a huge PCB factory: https://www.youtube.com/watch?v=_XCznQFV-Mw