django-htmx is a mature, open-source Django library that provides first-class integration with the htmx frontend framework. Its core functionality is delivered through middleware (HtmxMiddleware) that parses htmx request headers and exposes them as typed attributes on `request.htmx`, a set of HTTP response helpers (HttpResponseClientRedirect, HttpResponseLocation, `trigger_client_event`, etc.) that set htmx-specific response headers, and Django template tags / Jinja functions to vend and load htmx JavaScript assets with version selection, minification, extensions, and CSP nonce support. The library vendors two complete htmx implementations (htmx 2.0.10 and a heavily customized htmx 4.0.0-beta6 with bundled extensions), plus many third-party extensions. It also includes a debug extension for rendering Django error pages within htmx responses. The architecture is a classic Django reusable app: a single Python package with middleware, template tags, static files, and an example project. All core logic is sync/async capable. The codebase demonstrates exceptional craftsmanship with 100% test coverage, strict typing, modern Python (3.11+, `from __future__ import annotations`), rigorous CI/CD, and comprehensive Sphinx documentation. The main maintenance burden is the large, checked-in vendored JavaScript assets, which must be manually updated via `download_htmx.py`. Overall, this is a high-quality, actively maintained library that sets a strong example for Django ecosystem projects.