I'm writing an isomorphic Key Value Store with webpack.

This is currently my approach to load the libraries, which obviously doesn't work, because webpack wants to resolve both require.
Whats' the right approach?

var db = null;



if (typeof window === 'undefined') {

    // node context

    db = require('level');

} else {

    // browser context

    db = require('gazel');

}

I know, that you can provide a target to webpack.
But I have no idea how to use that.

Thanks!