Bettyblocks

Contributed to the core of an enterprise low-code platform that lets both professional and citizen developers build web applications without writing boilerplate.

The problem

A low-code platform has to serve two audiences with incompatible expectations. Citizen developers want to assemble an application visually and never see a runtime. Professional developers want an escape hatch the moment the visual model stops fitting their problem — and they will abandon the platform entirely if it does not exist.

Serving only the first group produces a toy. Serving only the second produces a framework nobody needed.

What I built

Work spanned the full stack.

Elixir for the backend services. A platform like this runs many customers’ applications side by side, which makes concurrency and fault isolation the central problem rather than an optimisation. The BEAM’s process model is built for exactly that shape: one tenant’s failure stays that tenant’s failure.

React and TypeScript for the front-end components that make up the visual builder, with GraphQL joining the two layers — a fit for a product where the client decides what it needs rather than the server anticipating it, since the shape of a generated application is not known in advance.

WebAssembly extensions as the escape hatch: the point where a developer can drop out of visual composition into custom code without leaving the platform to do it.

Outcome

Platform capability that holds both audiences at once — visual development that stays genuinely visual, and a route to custom code that does not require abandoning it.