Sooner or later you will face with situation when you want/need to make some
changes in the library. Then the most important tool for you it's
[`npm link`](https://docs.npmjs.com/cli/link).

Please, notice that it will not work if you link library just from root of the
repo. It happens due to location of sources `./src`. You need to pack library
first `make pack` and then link it from `./dist` directory.

Yeah it's not such comfortable solution for development. But it can fixed by
writing small script similar as `make pack` but with linking every file and
directory from `./src` to the some directory and linking then from it. Notice
that you need to link `package.json` and `package-lock.json` as well.

So step by step:

```bash
make pack;
cd dist;
npm link;

cd $project_dir/js # Navigate to JS directory of the project where you want to link the library
npm link foris
```

And that's it ;)