Version Packages

Fix #141

docs/_data/site.cjs

@@ -9,6 +9,11 @@ module.exports = async function () {
         name: 'GitHub',
         url: 'https://github.com/modernweb-dev/rocket',
       },
+      {
+        name: 'Slack',
+        url:
+          'https://join.slack.com/t/lit-and-friends/shared_invite/zt-llwznvsy-LZwT13R66gOgnrg12PUGqw',
+      },
     ],
     gitSiteUrl: 'https://github.com/modernweb-dev/rocket',
     gitBranch: 'main',

docs/_includes/_joiningBlocks/head/site.njk

@@ -1,11 +1,3 @@
-<link
-  href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;700&display=swap"
-  rel="stylesheet"
-/>
-<link
-  href="https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&display=swap"
-  rel="stylesheet"
-/>
 <meta name="twitter:creator" content="@modern_web_dev" />
 
 <link rel="stylesheet" href="{{ '/_assets/body.css' | asset | url }}" mdjs-use>

docs/docs/configuration/images.md

@@ -100,6 +100,82 @@ export default {
 };
 ```
 
+## Ignoring Images
+
+Files ending in `.svg` or that include `rocket-ignore.` will remain untouched.
+
+For example
+
+```md
+![Logo stays svg](logo.svg)
+![Ignore by file name](my-image.rocket-unresponsive.jpg)
+![My Image Alternative Text](my-image.jpeg)
+```
+
+becomes
+
+```html
+<img src="logo.svg" alt="Logo stays svg" rocket-image="responsive" />
+<img src="my-image.rocket-unresponsive.jpg" alt="Ignore by file name" rocket-image="responsive" />
+<picture>[...] </picture>
+```
+
+### Adjusting ignore function
+
+The default ignore function looks like this
+
+```js
+/**
+ * The default responsive ignore function will ignore files
+ * - ending in `.svg`
+ * - containing `rocket-unresponsive.`
+ *
+ * @param {object} opts
+ * @param {string} opts.src
+ * @param {string} opts.title
+ * @param {string} opts.alt
+ * @param {{name: string, value: string}[]} opts.attributes
+ * @returns {boolean}
+ */
+function ignore({ src }) {
+  return src.endsWith('svg') || src.includes('rocket-unresponsive.');
+}
+```
+
+and you can adjust it by setting it via the `imagePreset`.
+
+For this example we want to also ignore `.jpeg` files.
+
+👉 `rocket.config.js`
+
+```js
+export default {
+  imagePresets: {
+    responsive: {
+      // ...
+      ignore: ({ src }) =>
+        src.endsWith('.jpeg') || src.endsWith('svg') || src.includes('rocket-unresponsive.'),
+    },
+  },
+};
+```
+
+With that setting we get the following behavior
+
+```md
+![Logo stays svg](logo.svg)
+![Ignore by file name](my-image.rocket-unresponsive.jpg)
+![My Image Alternative Text](my-image.jpeg)
+```
+
+becomes
+
+```html
+<img src="logo.svg" alt="Logo stays svg" rocket-image="responsive" />
+<img src="my-image.rocket-unresponsive.jpg" alt="Ignore by file name" rocket-image="responsive" />
+<img src="my-image.jpeg" alt="My Image Alternative Text" rocket-image="responsive" />
+```
+
 ## Defining your own presets
 
 You can add your own image preset like so

packages/cli/CHANGELOG.md

@@ -1,5 +1,35 @@
 # @rocket/cli
 
+## 0.9.4
+
+### Patch Changes
+
+- 2b5c61d: Allow configuring the imagePreset ignore rules via the option `ignore`
+
+  ```js
+  export default {
+    imagePresets: {
+      responsive: {
+        // ...
+        ignore: ({ src }) =>
+          src.endsWith('.jpeg') || src.endsWith('svg') || src.includes('rocket-unresponsive.'),
+      },
+    },
+  };
+  ```
+
+- 2b5c61d: Do not generate responsive images for files ending in `.svg` or that include `rocket-ignore.`
+- ce0b00e: don't transform external images
+- 3b1a0cf: Allow to configure check-html-links
+
+  ```js
+  export default {
+    checkLinks: {
+      /* ... */
+    },
+  };
+  ```
+
 ## 0.9.3
 
 ### Patch Changes

packages/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@rocket/cli",
-  "version": "0.9.3",
+  "version": "0.9.4",
   "publishConfig": {
     "access": "public"
   },

packages/cli/src/RocketLint.js

@@ -50,6 +50,7 @@ export class RocketLint {
 
     const checkLinks = new CheckHtmlLinksCli();
     checkLinks.setOptions({
+      ...this.config.checkLinks,
       rootDir: this.config.lintInputDir,
       printOnError: false,
       continueOnError: true,

packages/cli/src/eleventy-plugins/insertResponsiveImages.cjs

@@ -83,10 +83,20 @@ function getAttributes(data) {
 //   return classString ? classString.split(' ') : [];
 // }
 
+/**
+ *
+ * @param src {string} image src attribute value.
+ * @returns {boolean} true if src starts with https://, http:// or //
+ */
+
+function isExternalSrc(src) {
+  return /^(?:https?:)?\/\//.test(src);
+}
+
 /**
  * @param {string} html
  */
-function getImages(html) {
+function getImages(html, { imagePresets }) {
   /** @type {Heading[]} */
   const images = [];
   parser.eventHandler = (ev, _data) => {
@@ -100,16 +110,26 @@ function getImages(html) {
         const src = getAttribute(data, 'src');
         const title = getAttribute(data, 'title');
         const alt = getAttribute(data, 'alt');
+
         if (presetName) {
-          images.push({
-            presetName,
-            attributes,
-            src,
-            title,
-            alt,
-            openStart,
-            closeEnd,
-          });
+          const presetSettings = imagePresets[presetName];
+          if (!presetSettings) {
+            throw new Error(`Could not find imagePresets: { ${presetName}: {} }`);
+          }
+          const { ignore } = presetSettings;
+          const ignoreFn = typeof ignore === 'function' ? ignore : () => false;
+
+          if (!isExternalSrc(src) && !ignoreFn({ src, title, alt, attributes })) {
+            images.push({
+              presetName,
+              attributes,
+              src,
+              title,
+              alt,
+              openStart,
+              closeEnd,
+            });
+          }
         }
       }
     }
@@ -232,7 +252,7 @@ async function insertResponsiveImages(html) {
     imagePresets: config.imagePresets,
   };
 
-  let images = getImages(html);
+  let images = getImages(html, options);
   images = resolveFilePath(images, options);
   images = await responsiveImages(images, options);
   const newHtml = updateHtml(html, images);

packages/cli/src/normalizeConfig.js

@@ -19,6 +19,22 @@ import { fileURLToPath } from 'url';
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 
+/**
+ * The default responsive ignore function will ignore files
+ * - ending in `.svg`
+ * - containing `rocket-unresponsive.`
+ *
+ * @param {object} opts
+ * @param {string} opts.src
+ * @param {string} opts.title
+ * @param {string} opts.alt
+ * @param {{name: string, value: string}[]} opts.attributes
+ * @returns {boolean}
+ */
+function ignore({ src }) {
+  return src.endsWith('svg') || src.includes('rocket-unresponsive.');
+}
+
 /**
  * @param {Partial<RocketCliOptions>} inConfig
  * @returns {Promise<RocketCliOptions>}
@@ -50,6 +66,7 @@ export async function normalizeConfig(inConfig) {
         widths: [600, 900, 1640],
         formats: ['avif', 'jpeg'],
         sizes: '100vw',
+        ignore,
       },
     },
   };

packages/cli/test-node/RocketCli.images.test.js

@@ -56,6 +56,79 @@ describe('RocketCli images', () => {
           '</p>',
         ].join('\n'),
       );
+
+      const keepSvgHtml = await readStartOutput(cli, 'ignores/index.html', {
+        formatHtml: true,
+        replaceImageHashes: true,
+      });
+
+      // ignores src="[...].svg" and src="[...]rocket-unresponsive.[...]"
+      expect(keepSvgHtml).to.equal(
+        [
+          '<p>Ignore SVG</p>',
+          '<p><img src="../_assets/logo.svg" alt="Logo stays svg" rocket-image="responsive" /></p>',
+          '<p>Ignore if contains <code>rocket-unresponsive.</code></p>',
+          '<p>',
+          '  <img',
+          '    src="../_assets/my-image.rocket-unresponsive.jpg"',
+          '    alt="Logo stays svg"',
+          '    rocket-image="responsive"',
+          '  />',
+          '</p>',
+          '<p>Responsive</p>',
+          '<p>',
+          '  <picture>',
+          '    <source',
+          '      type="image/avif"',
+          '      srcset="/images/__HASH__-600.avif 600w, /images/__HASH__-900.avif 900w"',
+          '      sizes="100vw"',
+          '    />',
+          '    <source',
+          '      type="image/jpeg"',
+          '      srcset="/images/__HASH__-600.jpeg 600w, /images/__HASH__-900.jpeg 900w"',
+          '      sizes="100vw"',
+          '    />',
+          '    <img',
+          '      alt="My Image Alternative Text"',
+          '      rocket-image="responsive"',
+          '      src="/images/__HASH__-600.jpeg"',
+          '      width="600"',
+          '      height="316"',
+          '      loading="lazy"',
+          '      decoding="async"',
+          '    />',
+          '  </picture>',
+          '</p>',
+        ].join('\n'),
+      );
+    });
+
+    it('can configure more patterns to ignore', async () => {
+      cli = await executeStart('e2e-fixtures/images/ignore-more.rocket.config.js');
+      const keepSvgHtml = await readStartOutput(cli, 'ignores/index.html', {
+        formatHtml: true,
+        replaceImageHashes: true,
+      });
+
+      // ignores src="[...].svg" and src="[...]rocket-unresponsive.[...]"
+      expect(keepSvgHtml).to.equal(
+        [
+          '<p>Ignore SVG</p>',
+          '<p><img src="../_assets/logo.svg" alt="Logo stays svg" rocket-image="responsive" /></p>',
+          '<p>Ignore if contains <code>rocket-unresponsive.</code></p>',
+          '<p>',
+          '  <img',
+          '    src="../_assets/my-image.rocket-unresponsive.jpg"',
+          '    alt="Logo stays svg"',
+          '    rocket-image="responsive"',
+          '  />',
+          '</p>',
+          '<p>Responsive</p>',
+          '<p>',
+          '  <img src="../_assets/my-image.jpeg" alt="My Image Alternative Text" rocket-image="responsive" />',
+          '</p>',
+        ].join('\n'),
+      );
     });
 
     it('renders multiple images in the correct order', async () => {

packages/cli/test-node/RocketCli.service-worker.test.js

@@ -31,7 +31,7 @@ describe('RocketCli e2e', () => {
     }
   });
 
-  it.only('will add a script to inject the service worker', async () => {
+  it('will add a script to inject the service worker', async () => {
     cli = await executeBuild('e2e-fixtures/service-worker/rocket.config.js');
     const indexHtml = await readStartOutput(cli, 'index.html');
     const indexInject = getInjectServiceWorker(indexHtml);

packages/cli/test-node/e2e-fixtures/images/docs/_assets/logo.svg

@@ -0,0 +1,33 @@
+<svg fill="#e63946" version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 511.998 511.998" xml:space="preserve">
+   <g>
+  <path d="M98.649,430.256c-46.365,28.67-71.17,30.939-78.916,23.51c-7.75-7.433-6.519-32.307,20.182-79.832
+    c24.953-44.412,65.374-96.693,113.818-147.211l-11.279-10.817C93.124,267.348,51.871,320.751,26.291,366.279
+    c-19.228,34.22-37.848,79.134-17.375,98.766c5.84,5.6,13.599,7.935,22.484,7.935c22.269,0,51.606-14.677,75.469-29.432
+    c44.416-27.464,96.044-70.919,145.373-122.362l-11.279-10.817C192.517,360.888,141.976,403.464,98.649,430.256z"/>
+
+    <rect x="238.112" y="272.64" transform="matrix(-0.7218 -0.6921 0.6921 -0.7218 237.9094 656.5383)" width="25.589" height="15.628"/>
+
+    <rect x="268.895" y="302.163" transform="matrix(-0.7218 -0.6921 0.6921 -0.7218 270.4774 728.6761)" width="25.589" height="15.628"/>
+
+    <rect x="232.827" y="268.929" transform="matrix(-0.7218 -0.6921 0.6921 -0.7218 297.4719 673.0591)" width="102.364" height="15.628"/>
+  <path d="M500.916,41.287c-7.769,1.59-76.412,16.062-93.897,34.294l-50.728,52.899l-114.703-3.629l-39.198,40.876l79.28,40.569
+    l-21.755,22.687l72.848,69.858l21.755-22.687l43.857,77.51l39.197-40.876l-8.433-114.451l50.727-52.899
+    c17.485-18.234,29.067-87.422,30.331-95.251l1.801-11.169L500.916,41.287z M228.209,161.383l19.842-20.692l93.688,2.964
+    l-48.775,50.864L228.209,161.383z M401.632,327.686l-35.822-63.308l48.776-50.865l6.886,93.482L401.632,327.686z
+      M332.298,276.743l-50.287-48.223L412.89,92.037l50.288,48.223L332.298,276.743z M473.009,128.036l-48.316-46.334
+    c14.54-8.427,44.787-17.217,68.076-22.632C488.336,82.567,480.82,113.155,473.009,128.036z"/>
+
+    <rect x="302.369" y="231.988" transform="matrix(-0.7218 -0.6921 0.6921 -0.7218 384.0262 633.9694)" width="34.12" height="15.628"/>
+
+    <rect x="411.311" y="127.35" transform="matrix(-0.6921 0.7218 -0.7218 -0.6921 807.9747 -74.331)" width="17.061" height="15.628"/>
+
+    <rect x="394.288" y="145.087" transform="matrix(-0.7218 -0.6921 0.6921 -0.7218 586.0206 542.7934)" width="15.628" height="17.06"/>
+
+    <rect x="376.571" y="163.565" transform="matrix(-0.7218 -0.6921 0.6921 -0.7218 542.7271 562.3462)" width="15.628" height="17.06"/>
+
+    <rect x="161.111" y="185.158" transform="matrix(0.7071 0.7071 -0.7071 0.7071 192.1943 -60.3323)" width="15.628" height="33.35"/>
+
+    <rect x="184.683" y="172.695" transform="matrix(0.707 0.7072 -0.7072 0.707 182.4625 -83.9076)" width="15.628" height="11.118"/>
+    </g>
+</svg>

packages/cli/test-node/e2e-fixtures/images/docs/ignores.md

@@ -0,0 +1,15 @@
+---
+layout: layout-raw
+---
+
+Ignore SVG
+
+![Logo stays svg](./_assets/logo.svg)
+
+Ignore if contains `rocket-unresponsive.`
+
+![Logo stays svg](./_assets/my-image.rocket-unresponsive.jpg)
+
+Responsive
+
+![My Image Alternative Text](./_assets/my-image.jpeg)

packages/cli/test-node/e2e-fixtures/images/ignore-more.rocket.config.js

@@ -0,0 +1,10 @@
+/** @type {Partial<import("../../../types/main").RocketCliOptions>} */
+const config = {
+  imagePresets: {
+    responsive: {
+      ignore: ({ src }) =>
+        src.endsWith('.jpeg') || src.endsWith('svg') || src.includes('rocket-unresponsive.'),
+    },
+  },
+};
+export default config;

packages/cli/test-node/normalizeConfig.test.js

@@ -13,6 +13,7 @@ function cleanup(config) {
   delete configNoPaths._presetPathes;
   delete configNoPaths.eleventy;
   delete configNoPaths.outputDevDir;
+  delete configNoPaths.imagePresets.responsive.ignore;
   return configNoPaths;
 }
 

packages/cli/types/main.d.ts

@@ -1,4 +1,5 @@
 import { DevServerConfig } from '@web/dev-server';
+import { CheckHtmlLinksCliOptions } from 'check-html-links/dist-types/types/main';
 
 export interface RocketPreset {
   path: string;
@@ -39,6 +40,8 @@ export interface RocketCliOptions {
     [key: string]: ImagePreset;
   };
 
+  checkLinks: Partial<CheckHtmlLinksCliOptions>;
+
   start?: RocketStartConfig;
 
   // TODO: improve all setup functions

packages/launch/CHANGELOG.md

@@ -1,5 +1,12 @@
 # @rocket/launch
 
+## 0.5.1
+
+### Patch Changes
+
+- cf44221: Adds a Slack invite to social links
+- f5d349e: add used fonts from google fonts
+
 ## 0.5.0
 
 ### Minor Changes

packages/launch/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@rocket/launch",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "publishConfig": {
     "access": "public"
   },

packages/launch/preset/_assets/brand-logos/slack.svg

@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 123 123" fill="currentColor">
+  <title>Slack</title>
+  <path stroke="none" stroke-width="1" stroke-dasharray="none" stroke-linecap="butt" stroke-dashoffset="0" stroke-linejoin="miter" stroke-miterlimit="4" fill-rule="nonzero"
+    d="M26.4 78.2c0 7.1-5.8 12.9-12.9 12.9S.6 85.3.6 78.2c0-7.1 5.8-12.9 12.9-12.9h12.9v12.9zm6.5 0c0-7.1 5.8-12.9 12.9-12.9s12.9 5.8 12.9 12.9v32.3c0 7.1-5.8 12.9-12.9 12.9s-12.9-5.8-12.9-12.9V78.2zm12.9-51.8c-7.1 0-12.9-5.8-12.9-12.9S38.7.6 45.8.6s12.9 5.8 12.9 12.9v12.9H45.8zm0 6.5c7.1 0 12.9 5.8 12.9 12.9s-5.8 12.9-12.9 12.9H13.5C6.4 58.7.6 52.9.6 45.8s5.8-12.9 12.9-12.9h32.3zM97.6 45.8c0-7.1 5.8-12.9 12.9-12.9 7.1 0 12.9 5.8 12.9 12.9s-5.8 12.9-12.9 12.9H97.6V45.8zm-6.5 0c0 7.1-5.8 12.9-12.9 12.9-7.1 0-12.9-5.8-12.9-12.9V13.5C65.3 6.4 71.1.6 78.2.6c7.1 0 12.9 5.8 12.9 12.9v32.3zM78.2 97.6c7.1 0 12.9 5.8 12.9 12.9 0 7.1-5.8 12.9-12.9 12.9-7.1 0-12.9-5.8-12.9-12.9V97.6h12.9zm0-6.5c-7.1 0-12.9-5.8-12.9-12.9 0-7.1 5.8-12.9 12.9-12.9h32.3c7.1 0 12.9 5.8 12.9 12.9 0 7.1-5.8 12.9-12.9 12.9H78.2z"/>
+</svg>

packages/launch/preset/_assets/layout.css

@@ -213,6 +213,14 @@ body[layout^='layout-home'] #main-header a:hover {
     margin-right: 50px;
   }
 
+  #main-header .content-area > .social-link {
+    margin-right: 15px;
+  }
+
+  #main-header .content-area > *:last-child {
+    margin-right: 0;
+  }
+
   #main-header .search {
     order: 1;
   }

packages/launch/preset/_data/site.cjs

@@ -9,6 +9,11 @@ module.exports = function () {
         name: 'GitHub',
         url: 'https://github.com/modernweb-dev/rocket',
       },
+      {
+        name: 'Slack',
+        url:
+          'https://join.slack.com/t/lit-and-friends/shared_invite/zt-llwznvsy-LZwT13R66gOgnrg12PUGqw',
+      },
     ],
     gitSiteUrl: 'https://github.com/modernweb-dev/rocket',
     gitBranch: 'master',

packages/launch/preset/_includes/_joiningBlocks/head/40-stylesheets-fonts.njk

@@ -0,0 +1,10 @@
+<link rel="preconnect" href="https://fonts.googleapis.com" crossorigin>
+
+<link
+  href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;700&amp;display=optional"
+  rel="stylesheet"
+/>
+<link
+  href="https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&amp;display=optional"
+  rel="stylesheet"
+/>

packages/launch/test-node/RocketLaunch.preset.test.js

@@ -83,6 +83,17 @@ describe('RocketLaunch preset', () => {
         '',
         '    <meta name="twitter:card" content="summary_large_image" />',
         '',
+        '    <link rel="preconnect" href="https://fonts.googleapis.com" crossorigin />',
+        '',
+        '    <link',
+        '      href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;700&amp;display=optional"',
+        '      rel="stylesheet"',
+        '    />',
+        '    <link',
+        '      href="https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&amp;display=optional"',
+        '      rel="stylesheet"',
+        '    />',
+        '',
         '    <link rel="stylesheet" href="/_merged_assets/variables.css" />',
         '    <link rel="stylesheet" href="/_merged_assets/layout.css" />',
         '    <link rel="stylesheet" href="/_merged_assets/markdown.css" />',
@@ -138,6 +149,30 @@ describe('RocketLaunch preset', () => {
         '            ></path>',
         '          </svg>',
         '        </a>',
+        '        <a',
+        '          class="social-link"',
+        '          href="https://join.slack.com/t/lit-and-friends/shared_invite/zt-llwznvsy-LZwT13R66gOgnrg12PUGqw"',
+        '          aria-label="Rocket on Slack"',
+        '          rel="noopener noreferrer"',
+        '          target="_blank"',
+        '        >',
+        '          <span class="sr-only">Slack</span>',
+        '',
+        '          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 123 123" fill="currentColor">',
+        '            <title>Slack</title>',
+        '            <path',
+        '              stroke="none"',
+        '              stroke-width="1"',
+        '              stroke-dasharray="none"',
+        '              stroke-linecap="butt"',
+        '              stroke-dashoffset="0"',
+        '              stroke-linejoin="miter"',
+        '              stroke-miterlimit="4"',
+        '              fill-rule="nonzero"',
+        '              d="M26.4 78.2c0 7.1-5.8 12.9-12.9 12.9S.6 85.3.6 78.2c0-7.1 5.8-12.9 12.9-12.9h12.9v12.9zm6.5 0c0-7.1 5.8-12.9 12.9-12.9s12.9 5.8 12.9 12.9v32.3c0 7.1-5.8 12.9-12.9 12.9s-12.9-5.8-12.9-12.9V78.2zm12.9-51.8c-7.1 0-12.9-5.8-12.9-12.9S38.7.6 45.8.6s12.9 5.8 12.9 12.9v12.9H45.8zm0 6.5c7.1 0 12.9 5.8 12.9 12.9s-5.8 12.9-12.9 12.9H13.5C6.4 58.7.6 52.9.6 45.8s5.8-12.9 12.9-12.9h32.3zM97.6 45.8c0-7.1 5.8-12.9 12.9-12.9 7.1 0 12.9 5.8 12.9 12.9s-5.8 12.9-12.9 12.9H97.6V45.8zm-6.5 0c0 7.1-5.8 12.9-12.9 12.9-7.1 0-12.9-5.8-12.9-12.9V13.5C65.3 6.4 71.1.6 78.2.6c7.1 0 12.9 5.8 12.9 12.9v32.3zM78.2 97.6c7.1 0 12.9 5.8 12.9 12.9 0 7.1-5.8 12.9-12.9 12.9-7.1 0-12.9-5.8-12.9-12.9V97.6h12.9zm0-6.5c-7.1 0-12.9-5.8-12.9-12.9 0-7.1 5.8-12.9 12.9-12.9h32.3c7.1 0 12.9 5.8 12.9 12.9 0 7.1-5.8 12.9-12.9 12.9H78.2z"',
+        '            />',
+        '          </svg>',
+        '        </a>',
         '      </div>',
         '    </header>',
         '',
@@ -285,6 +320,17 @@ describe('RocketLaunch preset', () => {
         '',
         '    <meta name="twitter:card" content="summary_large_image" />',
         '',
+        '    <link rel="preconnect" href="https://fonts.googleapis.com" crossorigin />',
+        '',
+        '    <link',
+        '      href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;700&amp;display=optional"',
+        '      rel="stylesheet"',
+        '    />',
+        '    <link',
+        '      href="https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&amp;display=optional"',
+        '      rel="stylesheet"',
+        '    />',
+        '',
         '    <link rel="stylesheet" href="/_merged_assets/variables.css" />',
         '    <link rel="stylesheet" href="/_merged_assets/layout.css" />',
         '    <link rel="stylesheet" href="/_merged_assets/markdown.css" />',
@@ -340,6 +386,30 @@ describe('RocketLaunch preset', () => {
         '            ></path>',
         '          </svg>',
         '        </a>',
+        '        <a',
+        '          class="social-link"',
+        '          href="https://join.slack.com/t/lit-and-friends/shared_invite/zt-llwznvsy-LZwT13R66gOgnrg12PUGqw"',
+        '          aria-label="Rocket on Slack"',
+        '          rel="noopener noreferrer"',
+        '          target="_blank"',
+        '        >',
+        '          <span class="sr-only">Slack</span>',
+        '',
+        '          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 123 123" fill="currentColor">',
+        '            <title>Slack</title>',
+        '            <path',
+        '              stroke="none"',
+        '              stroke-width="1"',
+        '              stroke-dasharray="none"',
+        '              stroke-linecap="butt"',
+        '              stroke-dashoffset="0"',
+        '              stroke-linejoin="miter"',
+        '              stroke-miterlimit="4"',
+        '              fill-rule="nonzero"',
+        '              d="M26.4 78.2c0 7.1-5.8 12.9-12.9 12.9S.6 85.3.6 78.2c0-7.1 5.8-12.9 12.9-12.9h12.9v12.9zm6.5 0c0-7.1 5.8-12.9 12.9-12.9s12.9 5.8 12.9 12.9v32.3c0 7.1-5.8 12.9-12.9 12.9s-12.9-5.8-12.9-12.9V78.2zm12.9-51.8c-7.1 0-12.9-5.8-12.9-12.9S38.7.6 45.8.6s12.9 5.8 12.9 12.9v12.9H45.8zm0 6.5c7.1 0 12.9 5.8 12.9 12.9s-5.8 12.9-12.9 12.9H13.5C6.4 58.7.6 52.9.6 45.8s5.8-12.9 12.9-12.9h32.3zM97.6 45.8c0-7.1 5.8-12.9 12.9-12.9 7.1 0 12.9 5.8 12.9 12.9s-5.8 12.9-12.9 12.9H97.6V45.8zm-6.5 0c0 7.1-5.8 12.9-12.9 12.9-7.1 0-12.9-5.8-12.9-12.9V13.5C65.3 6.4 71.1.6 78.2.6c7.1 0 12.9 5.8 12.9 12.9v32.3zM78.2 97.6c7.1 0 12.9 5.8 12.9 12.9 0 7.1-5.8 12.9-12.9 12.9-7.1 0-12.9-5.8-12.9-12.9V97.6h12.9zm0-6.5c-7.1 0-12.9-5.8-12.9-12.9 0-7.1 5.8-12.9 12.9-12.9h32.3c7.1 0 12.9 5.8 12.9 12.9 0 7.1-5.8 12.9-12.9 12.9H78.2z"',
+        '            />',
+        '          </svg>',
+        '        </a>',
         '      </div>',
         '    </header>',
         '',