https://thingstudio.net/

Hi, I'm Mike, I've made ThingStudio, a flow programing environment for microcontrollers. It allows drag and drop programming Node-RED style, but emits MicroPython which it uploads to the micro. The board does not need the editor to run after that. Runs fully local, Apache 2 licensed. There's a functional version of the editor/IDE at linked to the home page, you'll need to install to be able to upload, because WebSerial is not universal. Please give it a while. I'm happy to answer any questions.