Update README.md

README.md

@@ -17,6 +17,22 @@ Welcome to the official Hugging Face organization for Poolside’s open models.
 
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+## Poolside Research Hackathon
+
+Poolside is hosting a 2-day model research hackathon in London. 
+
+Join us to push an open-weight agent model as far as you can. RL and fine-tune Laguna XS.2, our latest-generation model, on Prime Intellect Lab.
+
+- Dates: **May 29–30**
+- Partners: @nvidia + @PrimeIntellect + @huggingface
+- Prize: NVIDIA DGX Spark
+
+[Sign up on Luma](https://luma.com/poolsidehackathon).
+
+Follow submissions on our [Hackathon page](https://huggingface.co/organizations/poolside-laguna-hackathon/activity/articles).
+
+---
+
 ## Laguna XS.2
 
 [Our first open-weight model](https://huggingface.co/poolside/Laguna-XS.2): Laguna XS.2 (33B-A3B), designed for agentic coding and long-horizon work on a local machine. It uses Sliding Window Attention with per-head gating in 30 out of 40 layers for fast inference and low KV cache requirements.