I use tsconfig's `paths` in combination with the `require-rewrite` npm module (https://github.com/IUnknown68/require-rewrite).

Here's an example:

    // tsconfig.json
    ...
    "paths": {
        "#src/*": ["src/*"],
    }
    ...

    // package.json
    ...
    "requireRewrite": {
        "map": [
             [
                "#src/",
                "dist/src/"
             ],
        ]
    }
    ...
   
    // src/path1/x.ts
    import { X } from '#src/path2/y.ts`