Open Source Development

Google Summer of Code Please post your inquiries and discussions about MIT App Inventor Google Summer of Code submissions here. Extension Development This category is for questions specifically about working with MIT App Inventor's open source repository as it pertains to extension development. Anyone interested in developing an extension should start by reviewing the following documents and ask questions here if you encounter issues. Also check the parent category #open-source-development for additional troubleshooting when it comes to building the master or ucr branches.

Topic	Replies	Views	Activity
About the Open Source Development category Open Source Development	5	2897	January 16, 2024
Ant Task Summary Open Source Development faq	8	1774	October 17, 2026
Major Change to MIT App Inventor backend Open Source Development	3	66	October 16, 2026
Rush 2.2: a maintained extension builder for App Inventor v206 Extension Development	12	250	October 15, 2026
[OS]🚀 Introducing BoltWS Companion — A Live Development Companion For Extension Developers! Useful for Bolt, Fast, Rush CLI Extension Development	7	134	October 13, 2026
🏃‍♂️ Fast : An Efficient Way to Build & Publish Extensions Extension Development extension-developmen , fast-cli , extension-builder	529	31519	October 12, 2026
My extension is getting an error Extension Development bug-or-problem , extensions	3	125	October 8, 2026
⚡ [OS] Bolt CLI — A Modern, Lightning-Fast Extension Compiler with Java/Kotlin, Maven & Universal Migration! Extension Development extension-developmen	17	656	October 2, 2026
Deciding the Topic Open Source Development	3	105	September 30, 2026
RFC: Records — a dictionary with a name and a shape (feedback wanted) Open Source Development	22	398	September 28, 2026
DroidForge Studio Open Source Development bug-or-problem	11	308	September 23, 2026
Android App Bundle (.aab) Toolkit + GUI Open Source Development	11	316	September 20, 2026
Neo UI redesign — a work-in-progress demo, feedback wanted Open Source Development	38	676	September 20, 2026
A Vibe Coding Cautionary Tale - Check for Back Ends in the Code Extension Development	50	485	September 16, 2026
Create Sub Directory in ASD on first run? Extension Development	8	144	September 13, 2026
Unable to load file:http://192.168.1.4:8888/ode /download/file/5629----------/assets/1.jpg Open Source Development	17	265	September 9, 2026
Major changes coming to MIT App Inventor development Open Source Development	6	262	September 8, 2026
Helper Blocks Help! Extension Development	21	311	September 13, 2026
Add border and colour to rounded corners bitmap? Extension Development	26	361	September 13, 2026
How do I set an Image component with an image url? Extension Development	4	76	September 7, 2026
Extension code unable to read image file in assets? Extension Development	6	119	August 31, 2026
New layout for ListView - Custom? Open Source Development	9	226	August 26, 2026
Android 15+ : Status and Nav Bar Colours Extension Development	51	12656	August 19, 2026
Extension intent with whatsapp doubt Extension Development bug-or-problem , errors	9	972	August 4, 2026
Need help in making app inventor MPEG-TS Video Player extension Extension Development	4	183	July 27, 2026
Help with the development of the Unity Ads extension Extension Development extensions	9	436	July 26, 2026
Device Lock [BETA TESTER] Extension Development testing , extensions , help , app-test	9	351	July 19, 2026
Implementing native Padding and Margin properties for visible components Open Source Development	17	368	July 13, 2026
Please create a taifun thermometre extension Extension Development bug-or-problem	2	98	July 6, 2026
APK/AAB Manifest Editor Helpful Developer Tool (Update App Manifest, Change MinSDK, TargetSDK, Direct APK to APK and AAB to AAB Signer With Keystore) Open Source Development apk-tools , androidmanifest , apk-signer	0	328	July 4, 2026