Making Extensions

Open Source Development Extension Development
1

Hi,

can someone tell me, what I need to develop extensions? AJava IDE Ffrom MS?

2

or

Niotron IDE

or

https://ai2.appinventor.mit.edu/reference/other/extensions.html

3

Here is the official documentation
http://ai2.appinventor.mit.edu/reference/other/extensions.html

And after doing a search in the community you can find for example

Taifun