Riza is pioneering a method called "just-in-time programming," which enables dynamic software systems by leveraging large language models (LLMs) to generate and execute code in real-time without prior code reviews or tests. This approach is particularly useful for handling diverse data formats, such as CSV, JSON, or XML, by prompting LLMs to write scripts that extract required information from user-submitted files on-the-fly. Though LLMs are not infallible, their speed allows for rapid iteration and error correction, with retry loops enhancing reliability. Riza provides an isolated, secure environment for executing LLM-generated code, and is developing a comprehensive just-in-time programming platform that includes frameworks for integrating error handling, testing, observability, and evaluation of LLM output, based on insights from early customers.