Ruby APICreating Extensions for SketchUp uses the Ruby API. Whether you're creating plugins, extensions or add-ons (synonyms for the same thing) then you'll need to know some Ruby. Post here if you're creating an Extension and have any questions.Feature RequestsThis is the category to use if you’d like to suggestion new features or functionality for any of the Developer resources such as the Ruby API, SketchUp SDK or other extension related features.SketchUp SDKIf you're working creating importers or exporters for SketchUp then you'll want to work with the SketchUp SDK. This is where you can discuss issues or ask questions about the process.Extension Warehouse for DevelopersIf you’re trying to get your extension published in Extension Warehouse and run into signing up or submission issues, you’re in the right place to ask questions. For EW usage questions, head over here instead: Extension WarehouseDeveloper AnnouncementsHello SketchUp Developers! This little corner of the forums will act as our channel to communicate outbound messages to our community. Only the SketchUp team can create new posts here, so we can keep it neat and tidy. But anyone can respond to our messages, so that we can get feedback, heaps of gratitude, complaints, etc.