I did this with a server-side TypeScript project I built last year. The biggest advantage I noticed (and it's mentioned in the article): validation (i.e. type-s

I did this with a server-side TypeScript project I built last year. The biggest advantage I noticed (and it's mentioned in the article): validation (i.e. type-safety). Specifically, the project uses TypeORM and it was nice to be able to import the types for the DB connection options to make sure I had all of the necessary properties. I was using ts-node to run server-side without compilation, which made importing an `app.config.ts` file quite elegant, IMO.