Need new ide extension

[JEWEL]

For online extension development, the Niotron IDE is a viable option.

Niotron IDE

Alternatively, for local extension development, I recommend utilizing the modern FAST-CLI.

Fast : An Efficient Way to Build & Publish Extensions

[FAST-CLI] [Version Badge] Credit: The idea of the installation process and the project structures is inspired by Rush. Thanks a ton, Shreyash FAST (Feature-rich AppInventor Source Terminal) is An Efficient Way to Build & Publish App Inventor Extensions. With FAST, you no longer need to use any class level annotations except @DesignerComponent. Explore the wiki section for comprehensive overview and step-by-step instructions on FAST. If yo…

For coding, I'd suggest VS Code or IntelliJ IDEA.