zeit/pkg needs to know which assets to include for TypeScript (tsconfig.json) and be able to resolve any dynamic requires.
This package.json shows how to configure zeit/pkg with gluegun.
In this example, the assets key is used for pkg to copy necessary files into the built binary
and resolve the dynamic requires to find extensions and commands. TypeScript requires some basic
type definitions (*.d.ts files) to compile and run which are included with the TypeScript compiler.