
Free
Test Your Business Idea in a Simulation
A setup guide for MiroFish, the open-source engine where simulated people react to your pitch, plus a workflow that turns their objections into questions for real customers.
0 €
Node 18+, Python 3.11–3.12 with uv or Docker, an LLM API key in OpenAI format and a Zep Cloud key (usage is billed and can be high). Fully local option with Ollama needs a strong computer.
What you get
- Honest framing What a simulation can tell you, and why it is not market research.
- Install Source or Docker, the four keys, language switch.
- Privacy Where your pitch goes, and the fully local fork.
- 6-step workflow One-page seed, one question, small run, agent interviews, objection list, five real talks.
- 2 templates Seed template and objections sheet.
In three steps
- Unzip and open the guide PDF. Decide first whether your idea is confidential.
- Install MiroFish (or the local fork) with the commands from the guide, then fill in seed-template.md.
- Or paste INSTALL-WITH-CLAUDE.md into Claude Code and let it set things up step by step.
Fabian Faraz Farid · All links