Hey HN! I'm the author of SharpTS, a TypeScript interpreter and ahead-of-time compiler written in C#.

*What makes it different:*

- Dual execution modes - interpret TypeScript directly OR compile to native .NET executables - Full C# interop - compile TypeScript to DLLs that C# projects can reference with full type safety

*What works today:*

- Core TypeScript: classes, interfaces, generics, async/await, decorators - Advanced types: union/intersection types, literal types, type guards - Compiles to verifiable .NET IL with performance comparable to hand-written C# - 80+ unit tests, supports most of TypeScript's feature set

*Why I built it:*

I wanted to understand how TypeScript really works under the hood, and I thought .NET developers might appreciate being able to run TypeScript without Node.js. The AOT compilation to .NET IL was a fun challenge - mapping TypeScript's structural type system to .NET's nominal types required some creative solutions.

*Current limitations:*

- No npm module support (yet) - Some advanced type system features are still in progress - Standard library is partial (see STATUS.md)

The repo has detailed architecture docs if you're curious about the implementation details. Would love feedback, especially from TypeScript or compiler folks!

Example usage: ``` # Install dotnet tool install -g SharpTS

# Interpret sharpts script.ts

# Compile to .NET sharpts --compile script.ts dotnet script.dll ```

Happy to answer questions!