Realm, most recently featured on HN here[0], is a good example of this. Open source, widely adopted base product, with optional consultancy and now a full-featu

Realm, most recently featured on HN here[0], is a good example of this. Open source, widely adopted base product, with optional consultancy and now a full-featured platform for enterprises that need/want it. [0] https://news.ycombinator.com/item?id=12589426 https://news.ycombinator.com/item?id=12589426