This is your addon in typescript.
It uses typescripttolua and gmod-typescript in order to work.
First run npm i to install typescript and other dependencies to your workspace.
Then run npm run build inside of the workspace.
Lua files will be output exactly as placed in the /src/ folder, but in the /lua/ folder. That's it! Your addon is ready.
You can automate this with npm run dev, which will auto build your project if you change any typescript source code.