What you can do is use the esptool and copy out the entire 4mb flash contents to a file. You can then host that in github, and people can download the image and flash with that. Please note wifi settings with passwords will be in the file, so you might want to blank thouse before you dump the image.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
What you can do is use the esptool and copy out the entire 4mb flash contents to a file. You can then host that in github, and people can download the image and flash with that. Please note wifi settings with passwords will be in the file, so you might want to blank thouse before you dump the image.