Some open points and notes:

• using compodoc allows to not specify the argTypes in every story; when the storybook script is launched, a documentation.json file is created with the information about stories parameters;
• since we have directives, we need the render function in the meta object, while for components it would not be strictly needed;
• binding functions seems to work and there's anything in the documentation that explains how to use it; also using the mock fn function doesn't work

args: { onCLick: fn() }

• apparently is not possibile to use the Story typing:

type Story = StoryObj<SbbButton>;
export const Primary: Story = {...}

because arguments in kebab-case are marked as error, and if passed in camelCase they don't work; this is possibly related to our underlying web-components, because in a 'normal' Angular project the (typing + camelCase) works;

• for the same reason the built-in argsToTemplate function doesn't work and i added a improvable spreadArgs function;
• the showcase project has been reused by removing the Angular basic code and adding the storybook configuration; this has been done because when launching storybook init the CLI requires an Angular project to start with; if we want to have the stories at the same level of TS components, a different configuration needs to be set to 'merge' the two storybook (angular and angular-experimental) in a single one
• a decorator can be setup in preview.ts, as in the lyne-components library, to handle the dark/negative variants
• readmes are supported but not sure if they are needed