I've had a question burning a hole in my head for a while, "Can LLMs replace software?". Not to produce code which is compiled or interpreted but actually replace code.

I built a lightweight proxy that routes HTTP requests to Claude along with a natural language description of the app. Claude decides what to do — runs SQL queries, executes code, constructs the HTML response. No codebase.

To test it I defined two apps in natural language:

* A todo app with login, registration, session management, and CRUD
* A cat adoption site with image uploads, CRUD, and a JavaScript love button that updates without a page reload

The LLM decides on the DB schema and creates the tables in an SQLite DB on first run. It could just as easily point to a cloud store.

It's a bit slow, clumsy, and expensive, but that's only because I've cobbled it together. With integrated pipelines, data storage, and an optimised model speeds would increase and prices would decrease. 

Yes it's really basic stuff but it worked and proved a point. The application layer can exist in the LLM. I think that even though this idea is at a Will Smith spaghetti eating stage we're not looking at a future without software developers but potentially a future without software.

SaaAS: Software as an AI Service