diff --git a/package-lock.json b/package-lock.json
index 58881cb03..e987084e0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -31,6 +31,7 @@
       "devDependencies": {
         "@laboratoria/curriculum-parser": "^6.0.0-alpha.0",
         "@laboratoria/mdlint": "^1.2.3",
+        "@laboratoria/sdk-js": "8.0.0-beta.0",
         "@octokit/rest": "^20.0.2",
         "@sentry/vite-plugin": "^2.16.0",
         "@testing-library/jest-dom": "^6.1.5",
@@ -1380,9 +1381,9 @@
       "license": "Apache-2.0"
     },
     "node_modules/@firebase/app": {
-      "version": "0.10.4",
-      "resolved": "https://registry.npmjs.org/@firebase/app/-/app-0.10.4.tgz",
-      "integrity": "sha512-oKd5cT+fDbQ22X8Am3tBOrSFdDp8n4NJDqld4uo+H/PL9F+D3ogtTeiPyDWw1lZK7FsMbmtRrPRozlmJFzSKAQ==",
+      "version": "0.10.5",
+      "resolved": "https://registry.npmjs.org/@firebase/app/-/app-0.10.5.tgz",
+      "integrity": "sha512-iY/fNot+hWPk9sTX8aHMqlcX9ynRvpGkskWAdUZ2eQQdLo8d1hSFYcYNwPv0Q/frGMasw8udKWMcFOEpC9fG8g==",
       "license": "Apache-2.0",
       "dependencies": {
         "@firebase/component": "0.6.7",
@@ -1437,12 +1438,12 @@
       "license": "Apache-2.0"
     },
     "node_modules/@firebase/app-compat": {
-      "version": "0.2.34",
-      "resolved": "https://registry.npmjs.org/@firebase/app-compat/-/app-compat-0.2.34.tgz",
-      "integrity": "sha512-enteBla1gBYObauvsC9bRRoqHZnOW48ahYABZ+l+FEiWil1rw0gVihl8D4eLqtQp/ci8+fbOBf3ZL19uFq/OCw==",
+      "version": "0.2.35",
+      "resolved": "https://registry.npmjs.org/@firebase/app-compat/-/app-compat-0.2.35.tgz",
+      "integrity": "sha512-vgay/WRjeH0r97/Q6L6df2CMx7oyNFDsE5yPQ9oR1G+zx2eT0s8vNNh0WlKqQxUEWaOLRnXhQ8gy7uu0cBgTRg==",
       "license": "Apache-2.0",
       "dependencies": {
-        "@firebase/app": "0.10.4",
+        "@firebase/app": "0.10.5",
         "@firebase/component": "0.6.7",
         "@firebase/logger": "0.4.2",
         "@firebase/util": "1.9.6",
@@ -1456,12 +1457,12 @@
       "license": "Apache-2.0"
     },
     "node_modules/@firebase/auth-compat": {
-      "version": "0.5.8",
-      "resolved": "https://registry.npmjs.org/@firebase/auth-compat/-/auth-compat-0.5.8.tgz",
-      "integrity": "sha512-qUgmv/mcth9wHPTOCKgAOeHe5c+BIOJVcbX2RfcjlXO3xnd8nRafwEkZKBNJUjy4oihYhqFMEMnTHLhwLJwLig==",
+      "version": "0.5.9",
+      "resolved": "https://registry.npmjs.org/@firebase/auth-compat/-/auth-compat-0.5.9.tgz",
+      "integrity": "sha512-RX8Zh/3zz2CsVbmYfgHkfUm4fAEPCl+KHVIImNygV5jTGDF6oKOhBIpf4Yigclyu8ESQKZ4elyN0MBYm9/7zGw==",
       "license": "Apache-2.0",
       "dependencies": {
-        "@firebase/auth": "1.7.3",
+        "@firebase/auth": "1.7.4",
         "@firebase/auth-types": "0.12.2",
         "@firebase/component": "0.6.7",
         "@firebase/util": "1.9.6",
@@ -1473,9 +1474,9 @@
       }
     },
     "node_modules/@firebase/auth-compat/node_modules/@firebase/auth": {
-      "version": "1.7.3",
-      "resolved": "https://registry.npmjs.org/@firebase/auth/-/auth-1.7.3.tgz",
-      "integrity": "sha512-RiU1PjziOxLuyswtYtLK2qSjHIQJQGCk1h986SUFRbMQfzLXbQg8ZgXwxac1UAfDOzgzqPNCXhBuIlSK2UomoQ==",
+      "version": "1.7.4",
+      "resolved": "https://registry.npmjs.org/@firebase/auth/-/auth-1.7.4.tgz",
+      "integrity": "sha512-d2Fw17s5QesojwebrA903el20Li9/YGgkoOGJjagM4I1qAT36APa/FcZ+OX86KxbYKCtQKTMqraU8pxG7C2JWA==",
       "license": "Apache-2.0",
       "dependencies": {
         "@firebase/component": "0.6.7",
@@ -1863,9 +1864,9 @@
       }
     },
     "node_modules/@firebase/vertexai-preview": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/@firebase/vertexai-preview/-/vertexai-preview-0.0.1.tgz",
-      "integrity": "sha512-N8m9Xr0YZKy0t9SpQDuHrL2ppEAT/iqf88Y/O00QNA/Td/BMCL8sJ0c+Savh1TVrqh0rNp9n6HkZ39e/O5mwhA==",
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/@firebase/vertexai-preview/-/vertexai-preview-0.0.2.tgz",
+      "integrity": "sha512-NOOL63kFQRq45ioi5P+hlqj/4LNmvn1URhGjQdvyV54c1Irvoq26aW861PRRLjrSMIeNeiLtCLD5pe+ediepAg==",
       "license": "Apache-2.0",
       "dependencies": {
         "@firebase/app-check-interop-types": "0.3.2",
@@ -2009,9 +2010,9 @@
       }
     },
     "node_modules/@grpc/grpc-js": {
-      "version": "1.9.14",
-      "resolved": "https://registry.npmjs.org/@grpc/grpc-js/-/grpc-js-1.9.14.tgz",
-      "integrity": "sha512-nOpuzZ2G3IuMFN+UPPpKrC6NsLmWsTqSsm66IRfnBt1D4pwTqE27lmbpcPM+l2Ua4gE7PfjRHI6uedAy7hoXUw==",
+      "version": "1.9.15",
+      "resolved": "https://registry.npmjs.org/@grpc/grpc-js/-/grpc-js-1.9.15.tgz",
+      "integrity": "sha512-nqE7Hc0AzI+euzUwDAy0aY5hCp10r734gMGRdU+qOPX0XSceI2ULrcXB5U2xSc5VkWwalCj4M7GzCAygZl2KoQ==",
       "license": "Apache-2.0",
       "dependencies": {
         "@grpc/proto-loader": "^0.7.8",
@@ -3124,12 +3125,14 @@
       }
     },
     "node_modules/@laboratoria/sdk-js": {
-      "version": "7.5.0",
-      "resolved": "https://registry.npmjs.org/@laboratoria/sdk-js/-/sdk-js-7.5.0.tgz",
-      "integrity": "sha512-OT4ACJUa/QTbmPqbTJXGyJ2jtL/2m4E26VP98aMDlPv7jEDYFImnmdjxE9nP1/zwzb4dPaTykTlK9EFvAEXNMw==",
+      "version": "8.0.0-beta.0",
+      "resolved": "https://registry.npmjs.org/@laboratoria/sdk-js/-/sdk-js-8.0.0-beta.0.tgz",
+      "integrity": "sha512-56QBgVjfbLxaIT/NWm+pN7RZqgN5TXWFLkA5X25NiIbpUBhyXZRm6JOv+j3bhg1kZ5/fPg/Bj+Ra0+AI3L+aPw==",
+      "dev": true,
+      "license": "MIT",
       "dependencies": {
         "blueimp-md5": "^2.19.0",
-        "firebase": "^10.9.0"
+        "firebase": "^10.12.2"
       },
       "engines": {
         "node": ">=18.0.0"
@@ -3162,6 +3165,19 @@
         "react-router-dom": "^6.22.3"
       }
     },
+    "node_modules/@laboratoria/sdk-react/node_modules/@laboratoria/sdk-js": {
+      "version": "7.6.0",
+      "resolved": "https://registry.npmjs.org/@laboratoria/sdk-js/-/sdk-js-7.6.0.tgz",
+      "integrity": "sha512-EzXlmqsKDu3GlQ/KfSX10c9E0tLowTDLl84eMErCZ5/q18KQVGqLPlFpVvixxba08+XACHKD1vqUNuwNtyTe/Q==",
+      "license": "MIT",
+      "dependencies": {
+        "blueimp-md5": "^2.19.0",
+        "firebase": "^10.11.1"
+      },
+      "engines": {
+        "node": ">=18.0.0"
+      }
+    },
     "node_modules/@mui/base": {
       "version": "5.0.0-beta.40",
       "resolved": "https://registry.npmjs.org/@mui/base/-/base-5.0.0-beta.40.tgz",
@@ -7620,20 +7636,20 @@
       }
     },
     "node_modules/firebase": {
-      "version": "10.12.1",
-      "resolved": "https://registry.npmjs.org/firebase/-/firebase-10.12.1.tgz",
-      "integrity": "sha512-B/R3BX26OAgreA64JN0lYspYRHMS36E19/Sv9WsyQu1RqPGBzWkBlt1RW6+38SdtMDlAnk3ibKL/SRSQHb1xRw==",
+      "version": "10.12.2",
+      "resolved": "https://registry.npmjs.org/firebase/-/firebase-10.12.2.tgz",
+      "integrity": "sha512-ZxEdtSvP1I9su1yf32D8TIdgxtPgxwr6z3jYAR1TXS/t+fVfpoPc/N1/N2bxOco9mNjUoc+od34v5Fn4GeKs6Q==",
       "license": "Apache-2.0",
       "dependencies": {
         "@firebase/analytics": "0.10.4",
         "@firebase/analytics-compat": "0.2.10",
-        "@firebase/app": "0.10.4",
+        "@firebase/app": "0.10.5",
         "@firebase/app-check": "0.8.4",
         "@firebase/app-check-compat": "0.3.11",
-        "@firebase/app-compat": "0.2.34",
+        "@firebase/app-compat": "0.2.35",
         "@firebase/app-types": "0.9.2",
-        "@firebase/auth": "1.7.3",
-        "@firebase/auth-compat": "0.5.8",
+        "@firebase/auth": "1.7.4",
+        "@firebase/auth-compat": "0.5.9",
         "@firebase/database": "1.0.5",
         "@firebase/database-compat": "1.0.5",
         "@firebase/firestore": "4.6.3",
@@ -7651,13 +7667,13 @@
         "@firebase/storage": "0.12.5",
         "@firebase/storage-compat": "0.3.8",
         "@firebase/util": "1.9.6",
-        "@firebase/vertexai-preview": "0.0.1"
+        "@firebase/vertexai-preview": "0.0.2"
       }
     },
     "node_modules/firebase/node_modules/@firebase/auth": {
-      "version": "1.7.3",
-      "resolved": "https://registry.npmjs.org/@firebase/auth/-/auth-1.7.3.tgz",
-      "integrity": "sha512-RiU1PjziOxLuyswtYtLK2qSjHIQJQGCk1h986SUFRbMQfzLXbQg8ZgXwxac1UAfDOzgzqPNCXhBuIlSK2UomoQ==",
+      "version": "1.7.4",
+      "resolved": "https://registry.npmjs.org/@firebase/auth/-/auth-1.7.4.tgz",
+      "integrity": "sha512-d2Fw17s5QesojwebrA903el20Li9/YGgkoOGJjagM4I1qAT36APa/FcZ+OX86KxbYKCtQKTMqraU8pxG7C2JWA==",
       "license": "Apache-2.0",
       "dependencies": {
         "@firebase/component": "0.6.7",
diff --git a/package.json b/package.json
index edc4a36a4..f8e4cb2f5 100644
--- a/package.json
+++ b/package.json
@@ -57,6 +57,7 @@
   "devDependencies": {
     "@laboratoria/curriculum-parser": "^6.0.0-alpha.0",
     "@laboratoria/mdlint": "^1.2.3",
+    "@laboratoria/sdk-js": "8.0.0-beta.0",
     "@octokit/rest": "^20.0.2",
     "@sentry/vite-plugin": "^2.16.0",
     "@testing-library/jest-dom": "^6.1.5",
diff --git a/scripts/README.md b/scripts/README.md
index 7f33f44b4..5af66301a 100644
--- a/scripts/README.md
+++ b/scripts/README.md
@@ -71,10 +71,25 @@ Argumentos:
 Opciones:
 
 * `--locale`: Puede ser `es` o `pt`. Por defecto es `es`.
+* `--variant`: Variente de implementación (si el proyecto tiene variantes).
 * `--noop`: Si esta opción está presente el script nos dirá que es lo que haríá
   paso a paso pero sin realmente hacer nada. Es útil para familiarizarse con el
   script.
 
+:warning: Para pasar opciones al script cuando invocamos a través de
+`npm-scripts` (`npm run create-cohort-project`) hay que separar las opciones con
+` -- ` para que `npm` las pase al script.
+
+```sh
+npm run create-cohort-project projects/05-fleet-management-api /tmp XXX999 -- --variant java
+```
+
+Si invocamos directamente no es necesario. Por ejemplo:
+
+```sh
+./scripts/create-cohort-project.mjs projects/05-fleet-management-api /tmp XXX999 --variant java
+```
+
 ***
 
 ## Testing y linters
diff --git a/scripts/create-cohort-project.mjs b/scripts/create-cohort-project.mjs
index bb3cd571d..6396426b3 100755
--- a/scripts/create-cohort-project.mjs
+++ b/scripts/create-cohort-project.mjs
@@ -14,12 +14,15 @@ import {
   transformLearningObjectives,
   loadYaml,
 } from '@laboratoria/curriculum-parser/lib/project.js';
-import { getFilesWithLocales,
+import { parseProject } from '@laboratoria/sdk-js';
+import {
+  getFilesWithLocales,
   defaultLocale,
   supportedLocales,
   getLearningObjectivesHeadings,
   getLearningObjectivesHierarchy,
-  createLearningObjectivesMarkdown } from './script-utils.mjs';
+  createLearningObjectivesMarkdown
+} from './script-utils.mjs';
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const uiUrl = 'https://curriculum.laboratoria.la';
@@ -87,7 +90,7 @@ const copy = async (src, repoDir, opts) => {
 
   // rename / replace default files with localized content
   if (opts.locale && opts.locale !== defaultLocale) {
-    const files = getFilesWithLocales(repoDir, [ opts.locale ]);
+    const files = getFilesWithLocales(repoDir, [opts.locale]);
     await Promise.all(files.map(filepath => rename(`${filepath}`, `${filepath.replace(`.${opts.locale}`, '')}`)));
   }
 
@@ -125,15 +128,21 @@ const addExplainDevConfigFile = async ({ project, cohort, track, repoDir }) => {
 };
 
 const addLocalizedLearningObjectives = async (repoDir, opts, meta) => {
-
-  const learningObjectives = await transformLearningObjectives(repoDir, {
+  const { learningObjectives, variants } = await transformLearningObjectives(repoDir, {
     lo: path.join(__dirname, '../learning-objectives'),
   }, meta);
 
-  // Note: learningObjectives returns list of specific oa's 
-  // example: so for js/modules -> js/modules/esm, js/modules/common
+  if (variants?.length && !opts.variant) {
+    throw new Error('Project has variants, please specify one with --variant');
+  }
+
+  const parsedProject = parseProject({ ...meta, learningObjectives, variants });
+  const combinedLearningObjectives = parsedProject.getCombinedLearningObjectives(opts.variant);
 
-  if (!learningObjectives) {
+  // Note: combinedLearningObjectives returns list of objects, each with a
+  // property `id` containing a string like: js/modules, s/modules/esm, etc
+
+  if (!combinedLearningObjectives?.length) {
     return;
   }
 
@@ -142,9 +151,14 @@ const addLocalizedLearningObjectives = async (repoDir, opts, meta) => {
     path.join(__dirname, '../learning-objectives', 'intl', `${lang}.yml`),
   );
 
-  const categoryTree = getLearningObjectivesHierarchy(learningObjectives);
+  const categoryTree = getLearningObjectivesHierarchy(combinedLearningObjectives);
   const sectionTree = getLearningObjectivesHeadings(categoryTree, intl);
-  const text = createLearningObjectivesMarkdown(learningObjectives, sectionTree, intl, lang);
+  const text = createLearningObjectivesMarkdown(
+    combinedLearningObjectives,
+    sectionTree,
+    intl,
+    lang,
+  );
   const readmePath = path.join(repoDir, 'README.md');
   const contents = (await readFile(readmePath, 'utf8')).split('\n');
   const startIndex = contents.findIndex(
@@ -226,14 +240,13 @@ const main = async (args, opts) => {
   ensureSrc(src);
 
   const slug = path.basename(src).slice(3);
-  const repoName = prefix ? `${prefix}-${slug}` : slug;
+  const repoName = `${prefix ? `${prefix}-` : ''}${slug}${opts.variant ? `-${opts.variant}` : ''}`;
   const repoDir = dest ? `${dest}/${repoName}` : repoName;
 
   await ensureRepoDir(repoDir, opts);
   await copy(src, repoDir, opts);
   await addBootcampInfo(repoDir);
   const meta = await loadYaml(path.join(src, 'project.yml'));
-  // console.log('learning Objectives son', learningObjectives);
   await addExplainDevConfigFile({
     project: slug,
     cohort: prefix,
@@ -299,6 +312,9 @@ Este es un mensaje de ayuda para que puedas usarlo.
     # crea el proyecto Markdown Links en la ruta actual para DEV999
     npm run create-cohort-project projects/04-md-links ./ DEV999
 
+    # crea proyecto Fleet Management API en su variante de Java
+    npm run create-cohort-project projects/05-fleet-management-api / XXX999 -- --variant java
+
 Acá puedes encontrar la documentación completa:
 https://github.com/Laboratoria/curriculum/tree/main/scripts#create-cohort-project
 `);
diff --git a/scripts/script-utils.mjs b/scripts/script-utils.mjs
index 422143865..4474e84ef 100644
--- a/scripts/script-utils.mjs
+++ b/scripts/script-utils.mjs
@@ -8,7 +8,7 @@ export const getFilesWithLocales = (dir, locales) => {
   const dirents = readdirSync(dir, { withFileTypes: true });
   const filesWithExt = dirents.reduce((accumFiles, dirent) => {
     const fullPath = path.resolve(dir, dirent.name);
-    dirent.isDirectory() ? accumFiles.push(...getFilesWithLocales(fullPath, locales)) : accumFiles.push(fullPath); 
+    dirent.isDirectory() ? accumFiles.push(...getFilesWithLocales(fullPath, locales)) : accumFiles.push(fullPath);
     return accumFiles;
   }, []);
   const regexLocaleMD = new RegExp(`\.(${locales.join('|')})\.md`);
@@ -16,16 +16,16 @@ export const getFilesWithLocales = (dir, locales) => {
 }
 
 /**
- * 
- * @param {array} learningObjectives 
+ *
+ * @param {array} learningObjectives
  * @returns {object} an object with keys of top level categories and values of subcategory arrays ex. { 'js': ['js/testing', ...]}
  */
 export const getLearningObjectivesHierarchy = (learningObjectives) => learningObjectives.reduce(
-  (memo, item) => {
-    const [ root, ...parts] = item.split('/');
+  (memo, { id }) => {
+    const [root, ...parts] = id.split('/');
     if (!memo[root]) {
       Object.assign(memo, { [root]: [] })
-    } 
+    }
     const subcatKeys = parts.slice(0, -1).reduce((acc, part, i, arr) =>
       [...acc, `${root}/${arr.slice(0, i + 1).join('/')}`], []);
     subcatKeys.forEach(subcat => !memo[root].includes(subcat) && memo[root].push(subcat));
@@ -37,7 +37,7 @@ export const getLearningObjectivesHierarchy = (learningObjectives) => learningOb
 const getNearestSubcategoryParent = (objectiveKey) => objectiveKey.split('/').slice(0, -1).join('/');
 
 /**
- * 
+ *
  * @param {object} categoryTree an object rep of hierarchy of categories and subcats, as returned in getLearningObjecttivesHierarchy
  * @param {object} intl localized objectives content
  * @returns {object} key is category/subcat, value is heading with intl string and heading level ex. { 'js/testing': '#### Testing' }
@@ -49,7 +49,7 @@ export const getLearningObjectivesHeadings = (categoryTree, intl) => Object.keys
 
     return {
       ...memo,
-      [rootCategoryKey]: [`### ${localizedCat.title || intl[rootCategoryKey] || rootCategoryKey }\n`],
+      [rootCategoryKey]: [`### ${localizedCat.title || intl[rootCategoryKey] || rootCategoryKey}\n`],
       ...subcats.reduce((acc, subcatKey, i) => {
         const localized = intl[subcatKey];
         const title = localized?.title || intl[subcatKey] || subcatKey;
@@ -60,9 +60,10 @@ export const getLearningObjectivesHeadings = (categoryTree, intl) => Object.keys
         // Note: this suffix is to help understand the hierarchy of the deeper objectives in the readme
         const subcatSuffix = (depth > 2) ? ` _(${(intl[nearestParent]?.title || intl[nearestParent] || nearestParent)})_` : '';
         const subheading = `${'#'.repeat(headingLevel)} ${title}${subcatSuffix}\n`
-        return ({...acc, [subcatKey]: [subheading]})
-      } , {})}
-    },
+        return ({ ...acc, [subcatKey]: [subheading] })
+      }, {})
+    }
+  },
   {},
 );
 
@@ -72,27 +73,27 @@ const linkToString = ({ title, url }, lang) => {
 };
 
 export const createLearningObjectivesMarkdown = (learningObjectives, sectionTree, intl, lang) => {
-  learningObjectives.forEach((objectiveKey) => {
-    const item = intl[objectiveKey] || {};
-    const title = item.title || objectiveKey.split('/').slice(1).join('/');
+  learningObjectives.forEach(({ id }) => {
+    const item = intl[id] || {};
+    const title = item.title || id.split('/').slice(1).join('/');
     let markup;
     if (!item.links || !item.links.length) {
       markup = `\n- [ ] **${title}**\n`;
     } else {
-       // collapsible links
+      // collapsible links
       const detailsStart = '<details><summary>Links</summary><p>\n';
       const detailsEnd = '\n</p></details>\n';
-      markup = (item.links.reduce((prev, link) => `${prev}\n  * ${linkToString(link, lang)}`, 
-        `\n- [ ] **${title}**\n\n  ${detailsStart}`) 
+      markup = (item.links.reduce((prev, link) => `${prev}\n  * ${linkToString(link, lang)}`,
+        `\n- [ ] **${title}**\n\n  ${detailsStart}`)
       ) + detailsEnd;
     }
-   
+
     // find out where to put the markup
-    const [ rootCategory, ...parts ] = objectiveKey.split('/');
+    const [rootCategory, ...parts] = id.split('/');
     if (parts.length === 1) { // we are just one level under the root cat
       sectionTree[rootCategory].push(markup);
     } else {
-      const nearestParent = getNearestSubcategoryParent(objectiveKey);
+      const nearestParent = getNearestSubcategoryParent(id);
       sectionTree[nearestParent].push(markup);
     }
   });