Superc8 is a drop‑in, modern replacement for the `c8` code‑coverage tool. It fixes upstream bugs, rewrites everything as ESM, updates dependencies and adds improvements such as reliable exit codes, flake‑free tests, private imports and better reporting, while still using Node’s built‑in V8 coverage and supporting the same CLI/config options as `c8`. It’s aimed at developers who want accurate, no‑setup coverage for JavaScript/TypeScript projects (Node ≥ 22) and can replace `c8` or `nyc` in their test workflows.