ReviewCerberus is an open-source CLI tool that uses LLM APIs (Anthropic, AWS Bedrock, Ollama) to automatically review code changes and generate structured reports on logic, security, and quality issues. It's an early-stage GitHub project with minimal uptake (31 stars, 3 HN points) showing the space is crowded but unmonetized.

One insight: This is a commoditizing wrapper around LLM code review that has zero revenue signals, low distribution reach, and trades directly against entrenched players (GitHub Copilot Code Review, Coderabbit, Gitpod), making it a low-priority wedge candidate unless founder has founder-led go-to-market evidence.