High-control static web workflow with predictable output and zero-trust validation. Built on Gulp 5, Nunjucks, Dart Sass, PostCSS, esbuild, and Sharp.

• Project Website: gulp-devstack.cebre.us (currently serves the previous v4.x build)
• Documentation: Technical Guides
• Reference: Showcase & components live on the showcase branch (work in progress)

git clone https://github.com/cebreus/gulp-devstack.git
cd gulp-devstack
pnpm install
pnpm dev

Edit src/routes/index.md to change the homepage content, then open http://localhost:3000.

Gulp DevStack is designed for developers who demand precision. It rejects framework abstractions in favor of explicit control and deterministic output.

Every routable Nunjucks template in src/routes/ maps directly to public HTML. Internal layout files use the layout-*.njk prefix and are excluded from output.

• src/routes/index.njk → /
• src/routes/404.njk → /404.html
• src/routes/about/index.njk → /about/

Routes support an "Override & Merge" pattern. If a folder contains both .njk (template) and .md (data), the build engine automatically merges them. The .md frontmatter and content are compiled into .temp/pages/*.json and injected into the Nunjucks context as page, allowing a clean split between presentation and content.

To prevent bundle bloat, the pipeline supports Asset Autodiscovery. If you create src/routes/my-page/index.scss or index.js, they are automatically compiled and injected only into that specific page.

1. Development Mode (pnpm dev): Optimized for speed. Hot-reloading via BrowserSync (strictly on port 3000), source maps, and incremental builds.
2. Production Build (pnpm build): Optimized for security and performance. Assets are revisioned (fingerprinted), SRI hashes are injected, and CSS is purged.
3. Export Mode (pnpm export): A clean handoff mode. It keeps readable, non-hashed CSS/JS and formats HTML, while preserving the same route structure as the production build.

The verify:pipeline command ensures the project never regresses:

• WCAG Audits: Automated accessibility checks via Playwright and Axe-core.

• Link Integrity: Exhaustive validation of all internal links and anchors.

• Visual Parity: Automated screenshot comparison between Build and Export modes to ensure visual consistency across pipelines.

• Strict Validation: HTML5 structure verification via html-validate.

• Graph Awareness: graphify update . refreshes graphify-out/graph.json, graphify-out/graph.html, and graphify-out/GRAPH_REPORT.md after code changes.

The image task catalogs the bitmap files it actually emitted, including their oriented intrinsic dimensions and available formats. Opaque local images also receive a generated 20px WebP LQS class backed by cacheable /assets/css/lqs.css; transparent images receive dimensions but no placeholder. Templates opt in explicitly through the shared responsiveImage macro and site.localImages descriptors. External/CDN images and SVG remain unchanged.

├── gulp/              # Modular task definitions & pipeline logic
├── scripts/           # Release, lint wrapper, and hook support scripts
├── src/
│   ├── assets/        # Global images, fonts, and icons
│   ├── config/        # Centralized site metadata (site.js, env.js)
│   ├── js/            # Global scripts bundled via esbuild
│   ├── lib/           # Shared Nunjucks components & partials
│   ├── routes/        # Source for pages (Routing & Content)
│   └── scss/          # Global styles (Bootstrap 5.3 + Custom overrides)
├── tests/
│   ├── unit/          # Pure logic testing
│   ├── integration/   # Pipeline & Gulp task validation
│   ├── e2e/           # Browser-based integrity & A11y checks
│   └── visual/        # Cross-pipeline visual parity checks
├── docs/              # Technical documentation
├── memories/          # Agent-maintained project gotchas
└── graphify-out/      # Knowledge graph outputs

• pnpm verify:pipeline - The canonical CI/CD check.
• pnpm test:ci - Runs lint, test, test:docs, build, test:smoke, build:validate:html, and test:prod/test:e2e; creates the required build artifact itself.
• pnpm test:visual - Run visual regression tests.
• pnpm run component - Scaffold new Nunjucks/SCSS components via Plop.
• graphify update . - Refresh the local code graph after code changes.

MIT - Developed by Jaroslav Vrana