DiffDeploy

DiffDeploy is a web app + CLI that analyzes a pull request and generates a minimal, verifiable deployment plan: which services to build, which tests to run, which migrations to apply, and which environments to promote. It plugs into GitHub/GitLab and common CI systems, then uses dependency graphs and runtime signals to avoid the usual “rebuild everything” waste. The product is brutally pragmatic: it won’t magically understand every monorepo edge case, but it will save real money for teams with large CI bills and slow pipelines. It provides a change-impact report, a recommended pipeline, and guardrails (block deploy if risky files changed without required checks). Start with JavaScript/TypeScript monorepos (Nx/Turborepo) and expand later. The core value is measurable: fewer CI minutes, faster lead time, and fewer accidental partial deploys.