Show HN: Proliferate- open-source, self-hostable Codex for any coding agent

Proliferate is an open-source, self-hostable AI IDE that integrates Claude Code, Codex, OpenCode, Cursor and Grok, supporting native inference on Bedrock, Azure and self-hosted servers. It enables parent agents to spawn sub-agents, creates reusable workflow chains with human approval gates, and automates tasks such as code review, QA and pull-request generation.