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Last updated: July 12, 2026

Download Holdout Lab

The research + paper-trading edition is free and runs entirely on your own machine. Current release: v0.1.1 (release notes ship in the bundle as CHANGELOG.md).

Download holdout-lab-v0.1.1.zipSHA256SUMS

Requirements

• macOS — Docker Desktop for Mac; Apple Silicon runs natively.
• Windows 10/11 — Docker Desktop for Windows (its default WSL 2 backend is fine — no extra setup).
• Linux — Docker Desktop or plain Docker Engine with the compose plugin (the commands below use docker compose, v2). Add your user to the docker group or prefix commands with sudo.
• ~2 GB free disk to start (market data grows with what you ingest).

Install Docker and open it once so the daemon is running before you continue.

Install (3 steps)

1. Unzip the bundle and open a terminal in the unzipped folder.

2. macOS / Linux (also WSL or Git Bash on Windows):

   ./setup.sh              # once: creates .env with a fresh session secret
   docker compose up -d    # pulls the images and starts the stack

   Windows (PowerShell) — the setup script is a shell script, so create .env with these lines instead, then start the stack:

   $bytes = [byte[]]::new(32)
   [System.Security.Cryptography.RandomNumberGenerator]::Create().GetBytes($bytes)
   $secret = -join ($bytes | ForEach-Object { $_.ToString('x2') })
   (Get-Content .env.template) -replace '__GENERATE__', $secret | Set-Content .env
   docker compose up -d

3. Open http://localhost:8080 and register — the first account becomes the owner.

Full guide — including IB paper trading, updating, and backups: Install with Docker.

Verify the download (optional)

Download SHA256SUMS into the same folder as the zip, then:

• macOS: shasum -a 256 -c SHA256SUMS --ignore-missing
• Linux: sha256sum -c SHA256SUMS --ignore-missing
• Windows (PowerShell): Get-FileHash holdout-lab-v0.1.1.zip — compare the hash to the holdout-lab-v0.1.1.zip line in SHA256SUMS.

What you get

• Zero-setup crypto paper trading — no keys, no broker account.
• The nine-stage anti-overfit gauntlet, research at scale, and the Learn course.
• IB paper trading with your own Interactive Brokers account (optional).
• Self-hosted and private: everything binds to localhost, your keys and data never leave your machine, no telemetry.

This edition is research, backtesting, and paper trading only — live trading is disabled. It's research & education software, not investment advice. See the bundledLICENSE and THIRD-PARTY-NOTICES.md.

Questions or trouble installing? support@holdoutlab.com