# Hawk > Multi-tenant AI coding middleware. OpenAI-compatible endpoint for IDEs. Retired. Canonical case study: [Hawk](https://robert.textual.au/work/hawk) Author: [Robert Andrew](https://robert.textual.au/about) - Client: Textual - Role: Sole developer - Engagement period: Jan 2025 – Jun 2025 - Engagement: product - Technologies: Rust, Node, PostgreSQL, React, LangGraph Public limits: implementation details, orchestration architecture, profile learning mechanics. A multi-tenant AI coding middleware that learned how developers work, routed requests across providers, and exposed an OpenAI-compatible endpoint for IDEs. Profile learning, context filtering, and budget-aware orchestration sat underneath it. Retired. Implementation details, orchestration architecture, and the profile-learning mechanics are off-limits.