hmpl-js is a published TypeScript npm library that implements a compact client-side template language. The actual runtime code compiles HTML strings containing `{{#request}}` block helpers into template functions; invoking those functions issues `fetch` requests, replaces placeholder comment nodes (`<!--hmpl...-->`) with server-returned HTML, and supports indicators, request status binding, event callbacks, intervals, sanitization, and memoization. The library exposes a clean typed API via `compile`, `stringify`, and the request/instance contracts in `src/types.ts`, and it is covered by a test suite running on jsdom with DOMPurify, node-fetch, and nock-based mock servers. The implementation is concentrated in one large `src/main.ts`, which keeps the dependency surface small but makes isolated changes more risky than a modular architecture would. The repository also contains the official documentation site (`www/app`, built with Astro/Starlight and Vue components) and a Jekyll-powered blog (`www/blog`) with many technical articles and SEO structured data. These are documentation/marketing assets rather than library runtime code. They introduce noticeable drift: some blog posts still demonstrate the old v2 syntax, the hardcoded structured-data version is 3.0.5 while the package is at 3.2.1, and the README-declared Node engine (`>=10.12.0`) no longer matches the modern async/AbortSignal usage in the code. Overall this is a solid, well-tested micro-library with a clear public API, but it carries medium maintainability debt from its monolithic compiler and duplicated content.