xBuildBuild, type-check, and serve TypeScript projects

xBuild is a fast, esbuild-powered toolchain with variant builds, lifecycle hooks, and compile-time macros.

🧩

Multi-variant builds

Define multiple build targets in one config and run selected variants with `--build`.

🧠

Enable type checks and `.d.ts` generation with `types` and `declaration` options.

🪝

Extend the build process using `onStart`, `onResolve`, `onLoad`, `onEnd`, and `onSuccess`.

⚡

Use `$$ifdef`, `$$ifndef`, and `$$inline` for conditional code and build-time evaluation.

🔁

Use `--watch` and `--serve` for fast local iteration.

⚙️

Reuse familiar esbuild options while adding xBuild features on top.