Nellcorp

✉️ Composable all-in-one mail server.

A dev environment for AI agents.

Finance terminal, in your terminal.

Agent workspace built on Cloudflare Workers for creating documents, building apps, and running agents with your company’s context and systems.

SDKs and CLI for Codex Security

Self-tuning Circuit Breaker and Concurrency Limiter

A really good chat application that you can self-host.

A quality pack for Claude Code that ships with its own eval harness and honest A/B evidence — rules with receipts, not vibes.

Patterns for building software that handles money

Beautiful, AI-native markdown editor and LLM Wiki