Debug multiple files in typescript

I've recently experimented with the debbuging tools in vscode. Everything seems to be working fine, I've set up the launch.json and set my program property. The problem is, breakpoints only work in the index.ts file, and I've got a commands folder as well with a file called champion.ts, in which the breakpoints stay as unbound. How can I make vscode debug those files aswell?

File structure

myapp/
├─ commands/
│  ├─ champion.ts
├─ index.ts
├─ out/
│  ├─ commands/
│  │  ├─ champion.js
│  ├─ index.js

launch.json

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "type": "node",
            "request": "launch",
            "name": "Launch Program",
            "skipFiles": [
                "<node_internals>/**"
            ],
            "program": "${workspaceFolder}/index.ts",
            "sourceMaps": true,
            
            "outFiles": [
                "${workspaceFolder}/out/*.js"
            ]
        }
    ]
}