diff --git a/.github/workflows/upgrade-from-latest-release.yml b/.github/workflows/upgrade-from-latest-release.yml
index f2c713c471d..8d83bfc9347 100644
--- a/.github/workflows/upgrade-from-latest-release.yml
+++ b/.github/workflows/upgrade-from-latest-release.yml
@@ -29,13 +29,50 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node }}
+      - uses: pnpm/action-setup@v3
+        name: Install pnpm
+        with:
+          version: 8
+          run_install: false
+      - name: Only install direct dependencies
+        run: pnpm config set auto-install-peers false
+      - name: Install libreoffice
+        uses: awalsh128/cache-apt-pkgs-action@v1.4.2
+        with:
+          packages: libreoffice libreoffice-pdfimport
+          version: 1.0
+      - name: Get pnpm store directory
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+      - uses: actions/cache@v4
+        name: Setup pnpm cache
+        with:
+          path: ${{ env.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+      - name: Only install direct dependencies
+        run: pnpm config set auto-install-peers false
+      -
+        name: Install libreoffice
+        uses: awalsh128/cache-apt-pkgs-action@v1.4.2
+        with:
+          packages: libreoffice libreoffice-pdfimport
+          version: 1.0
+      -
+        name: Install all dependencies and symlink for ep_etherpad-lite
+        run: bin/installDeps.sh
+      - name: Install admin ui
+        working-directory: admin
+        run: pnpm install
+      - name: Build admin ui
+        working-directory: admin
+        run: pnpm build
       -
         name: Install Etherpad plugins
-        # Important: Installer for old master which does not have pnpm right now
-        # The --legacy-peer-deps flag is required to work around a bug in npm v7:
-        # https://github.com/npm/cli/issues/2199
         run: >
-          npm install --no-save --legacy-peer-deps
+          pnpm run install-plugins
           ep_align
           ep_author_hover
           ep_cursortrace
@@ -49,12 +86,12 @@ jobs:
           ep_spellcheck
           ep_subscript_and_superscript
           ep_table_of_contents
-      -
-        name: Install all dependencies and symlink for ep_etherpad-lite
-        run: src/bin/installDeps.sh
       -
         name: Run the backend tests
-        run: cd src && npm test
+        run: pnpm run test
+      -
+        name: Install all dependencies and symlink for ep_etherpad-lite
+        run: ./bin/installDeps.sh
       # Because actions/checkout@v4 is called with "ref: master" and without
       # "fetch-depth: 0", the local clone does not have the ${GITHUB_SHA}
       # commit. Fetch ${GITHUB_REF} to get the ${GITHUB_SHA} commit. Note that a
@@ -70,44 +107,12 @@ jobs:
         # For pull requests, ${GITHUB_SHA} is the automatically generated merge
         # commit that merges the PR's source branch to its destination branch.
         run: git checkout "${GITHUB_SHA}"
-      - uses: pnpm/action-setup@v3
-        name: Install pnpm
-        with:
-          version: 8
-          run_install: false
-      - name: Only install direct dependencies
-        run: pnpm config set auto-install-peers false
-      -
-        name: Install libreoffice
-        uses: awalsh128/cache-apt-pkgs-action@v1.4.2
-        with:
-          packages: libreoffice libreoffice-pdfimport
-          version: 1.0
-      - name: Get pnpm store directory
-        shell: bash
-        run: |
-          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
-      - uses: actions/cache@v4
-        name: Setup pnpm cache
-        with:
-          path: ${{ env.STORE_PATH }}
-          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
-          restore-keys: |
-            ${{ runner.os }}-pnpm-store-
+
       -
         name: Install all dependencies and symlink for ep_etherpad-lite
         run: bin/installDeps.sh
-      -
-        name: Run the backend tests
-        run: pnpm test
-      -
-        name: Install Cypress
-        working-directory: ./src
-        run: pnpm install cypress
       -
         name: Run Etherpad & Test Frontend
         working-directory: ./src
         run: |
-          pnpm run dev &
-          curl --connect-timeout 10 --max-time 20 --retry 5 --retry-delay 10 --retry-max-time 60 --retry-connrefused http://127.0.0.1:9001/p/test
-          ./node_modules/cypress/bin/cypress run --config-file tests/frontend/cypress/cypress.config.js
+          pnpm run test-ui --project=chromium
diff --git a/src/static/js/pluginfw/LinkInstaller.ts b/src/static/js/pluginfw/LinkInstaller.ts
index a3034e28170..f3906f36903 100644
--- a/src/static/js/pluginfw/LinkInstaller.ts
+++ b/src/static/js/pluginfw/LinkInstaller.ts
@@ -35,7 +35,6 @@ export class LinkInstaller {
                 this.dependenciesMap.set(dependency, new Set([name]))
             }
         }
-
     }
 
     public async installFromPath(path: string) {
@@ -177,9 +176,10 @@ export class LinkInstaller {
             // We already added the sub dependency
             this.dependenciesMap.get(dependency)?.add(plugin)
         } else {
-            this.linkDependency(dependency)
-            // Read sub dependencies
+
             try {
+                this.linkDependency(dependency)
+                // Read sub dependencies
                 const json:IPluginInfo = JSON.parse(
                     readFileSync(pathToFileURL(path.join(pluginInstallPath, dependency, 'package.json'))) as unknown as string);
                 if(json.dependencies){
@@ -199,7 +199,16 @@ export class LinkInstaller {
             // Check if the dependency is already installed
             accessSync(path.join(node_modules, dependency), constants.F_OK)
         } catch (err) {
-            symlinkSync(path.join(pluginInstallPath, dependency), path.join(node_modules, dependency), 'dir')
+            try {
+                if(dependency.startsWith("@")){
+                    const newDependency = dependency.split("@")[0]
+                    symlinkSync(path.join(pluginInstallPath, dependency), path.join(node_modules, newDependency), 'dir')
+                } else {
+                    symlinkSync(path.join(pluginInstallPath, dependency), path.join(node_modules, dependency), 'dir')
+                }
+            } catch (e) {
+                // Nothing to do. We're all set
+            }
         }
     }
 
diff --git a/src/static/js/pluginfw/installer.ts b/src/static/js/pluginfw/installer.ts
index 1912ed7f5fc..973bdd56f56 100644
--- a/src/static/js/pluginfw/installer.ts
+++ b/src/static/js/pluginfw/installer.ts
@@ -79,8 +79,6 @@ export const checkForMigration = async () => {
   // Initialize linkInstaller
   await linkInstaller.init()
 
-
-
   try {
     await fs.access(installedPluginsPath, fs.constants.F_OK);
   } catch (err) {