Snapshot per-run bundle outputs to build a rolling historical baseline

Many frontend and build-focused engineers lack a reliable rolling baseline for per-build bundle outputs, so regressions in bundle size, module duplication, or code-splitting frequently slip into releases unnoticed. This gap affects an estimated 3 million web development teams—particularly React/Next.js squads, performance engineers, and CI/release owners—who today rely on single-run snapshots or brittle threshold checks. You could build a developer-tooling service that snapshots per-run bundle artifacts (bundle size breakdowns, module graphs, asset hashes, source maps) and maintains a programmable rolling baseline (for example, the last 30 CI runs) with per-build diffs, automated regression alerts, and easy integrations into CI pipelines and observability backends. Delivering lightweight build plugins for Next.js/webpack/Vite, a storage layer optimized for delta compression, and APIs to correlate bundle deltas with runtime metrics would make the offering actionable in daily workflows. The timing is favorable: the addressable market is roughly $3.6B (3M teams × $1,200 ARPA), Next.js adoption is accelerating, and organizations are shifting performance testing left while expecting release-time insights tied to observability. This product can stand out by focusing on programmatic, per-build baselining plus frictionless CI ergonomics and prebuilt adapters for the React/Next.js ecosystem, addressing a specific pain not fully solved by medium-competition incumbents. Realistic challenges include acquisition in a fragmented build-tooling landscape, storage and retention costs, and the need to clearly prove ROI; market score 92/100 and revenue potential 70/100 suggest strong interest but require disciplined product-market fit, pricing, and execution.