Rebase on eleventy

Author: ralphbean

.eleventy.js

@@ -0,0 +1,77 @@
+const eleventyNavigationPlugin = require("@11ty/eleventy-navigation");
+const pluginTOC = require('eleventy-plugin-toc');
+const markdownItAnchor = require("markdown-it-anchor");
+const markdownItReplaceLink = require("markdown-it-replace-link");
+
+module.exports = function(eleventyConfig) {
+  // Add navigation plugin
+  eleventyConfig.addPlugin(eleventyNavigationPlugin);
+
+  // Add TOC plugin
+  eleventyConfig.addPlugin(pluginTOC, {
+    tags: ['h2', 'h3', 'h4'],
+    ul: true,
+    wrapper: 'nav'
+  });
+
+  // Configure markdown-it with anchor support and link replacement
+  eleventyConfig.amendLibrary("md", mdLib => {
+    mdLib.set({ html: true, linkify: true, typographer: true });
+
+    // Add anchor support for headings
+    mdLib.use(markdownItAnchor, {
+      permalink: markdownItAnchor.permalink.linkInsideHeader({
+        symbol: '#',
+        placement: 'before'
+      }),
+      level: [2, 3, 4]
+    });
+
+    // Replace .md links with proper HTML paths
+    mdLib.use(markdownItReplaceLink, {
+      replaceLink: function (link, env) {
+        // Skip external links, anchors only, and non-.md links
+        if (link.startsWith('http://') ||
+            link.startsWith('https://') ||
+            link.startsWith('#') ||
+            !link.includes('.md')) {
+          return link;
+        }
+
+        // Remove .md extension and add trailing slash for clean URLs
+        // Handles both:
+        // - ./architecture/index.md -> ./architecture/index/
+        // - application-environment-api.md#anchor -> application-environment-api/#anchor
+        return link.replace(/\.md(#|$)/, '/$1');
+      }
+    });
+  });
+
+  // Set default layout for markdown files
+  eleventyConfig.addGlobalData("layout", "base.html");
+
+  // Copy assets to output
+  eleventyConfig.addPassthroughCopy("assets");
+  eleventyConfig.addPassthroughCopy("diagrams");
+
+  // Watch for changes
+  eleventyConfig.addWatchTarget("./ADR/");
+  eleventyConfig.addWatchTarget("./architecture/");
+  eleventyConfig.addWatchTarget("./ref/");
+
+  // Disable gitignore usage so we can process generated files like ADR/index.md
+  eleventyConfig.setUseGitIgnore(false);
+
+  return {
+    dir: {
+      input: ".",
+      output: "_site",
+      includes: "_includes",
+      layouts: "_layouts",
+      data: "_data"
+    },
+    templateFormats: ["md", "html", "njk"],
+    markdownTemplateEngine: false, // Don't process Markdown with Nunjucks to avoid conflicts with {{ }} syntax
+    htmlTemplateEngine: "njk"
+  };
+};

.eleventyignore

@@ -0,0 +1,7 @@
+node_modules/
+_site/
+.jekyll-cache/
+Gemfile.lock
+**/.export
+.DS_Store
+.idea/

.github/workflows/deploy-11ty.yml

@@ -0,0 +1,51 @@
+name: Deploy 11ty site to GitHub Pages
+
+on:
+  push:
+    branches: ["main"]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Build with Eleventy
+        run: make build
+
+      - name: Move architecture/ dir
+        run: mv _site/architecture/* _site/.
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v5
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

.github/workflows/gen-deploy-site.yml

@@ -1,3 +1,14 @@
 **/.export
 .DS_Store
-.idea/
+.idea/
+
+# Node.js
+node_modules/
+
+# Build output
+_site/
+
+# Jekyll (legacy - can be removed after migration)
+.jekyll-cache/
+Gemfile.lock
+ADR/index.md