Can we make the backend-boilerplate like the building-blocks?

[samuko-things]

Bug description

The building-blocks development is done such that we only have to write our development code in typescript. this typescript code is then built and can be used in cjs or esm nodejs projects.
Currently in the backend-boilerplate, development has to be done in typescript, commonjs, and esm.
Can we make the backend-boilerplate such that, like the building-blocks, we would only have to develop in typescript and the typescript code can be built/converted to be used by commonjs and esm project (without having to develop separately in commonjs and esm)?

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