Install Ollama from ollama.com

Pull a model — recommended: ollama pull gemma4:e4b
Any installed model works; the page picks the first one it finds.

Allow the page to talk to Ollama (CORS). Set this before starting Ollama:
Local dev (file:// or localhost):
setx OLLAMA_ORIGINS "*"  (Windows)
export OLLAMA_ORIGINS="*"  (macOS / Linux)
Production site:
OLLAMA_ORIGINS=https://thehallucinatedlab.space
Then restart Ollama.

Make sure Ollama is running, then click Retry below.