I have developed quite a lot of websites with Hugo. The problem I've figured out is that I we can't develop reliable mobile apps with just Hugo static site. I've been working with GraphQL (GraphCMS and Graph.cool) and other static generators including Middleman, Gatsby and Spike. I still find Hugo to be a lot better and easier as it has nice features, community and reliability.
Is there any possibility that we can somehow implement GraphQL or Firebase database with Hugo?