MadAppGang/dingo: A meta-language for Go that adds Result types, error propagation (?), and pattern matching while maintaining 100% Go ecosystem compatibility

Dingo is a meta-language that transpiles to Go, adding Result types, Option types, sum types with pattern matching, error propagation using the ? operator, and functional utilities while maintaining 100% Go ecosystem compatibility. The project compiles Dingo syntax to clean, idiomatic Go code with zero runtime overhead, similar to how TypeScript relates to JavaScript. Currently in active development with core features like sum types, pattern matching, error propagation, and lambda functions already working. The transpiler uses a two-stage architecture: preprocessor for text transformations followed by AST processing with Go's native parser. Includes full IDE support via LSP integration with gopls proxy and source maps for accurate position mapping.