Thank you for your interest in our TypeScript support!
Here are the answers to your questions:
1. In Visual Studio, all files that have build action “TypeScript Compile” implicitly reference each other. If you change the build action of your ts and declarations files to “TypeScript Compile” you should have intellisense without adding /// references. We will improve our project templates to have the TypeScript Compile build action set by default.
2. You are correct, we haven’t exposed the TypeScript build properties yet. We are still looking for the best way to handle that.
4. The NuGet UI works with known project types. Unfortunately, the AppBuilder project type is unknown to NuGet, so the commands for managing packages are unavailable. The good news is that the Package Manager Console works and you can install packages using “Install-Package”. In fact, Python and Node.js have the very same problem and we are monitoring how the NuGet team will handle the pull request for adding these project types as known projects.
If you have any other questions or suggestions, please don't hesitate to write back!
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