diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a88eca8eb..47d40b45e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -250,74 +250,3 @@ jobs:
       - uses: jupyterlab/maintainer-tools/.github/actions/check-links@v1
         with:
           ignore_links: 'lite/'
-
-  build-docs-and-lite:
-    name: Build docs with JupyterLite deployment
-    needs: build
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Install Conda environment with Micromamba
-        uses: mamba-org/setup-micromamba@v2
-        with:
-          micromamba-version: '1.5.5-0'
-          environment-name: build-env
-          create-args: >-
-            python=3.10
-            pip
-            jupyterlite-core>=0.4.0,<0.6.0
-            jupyterlite-xeus>=2,<3
-            jupyterlite-sphinx
-            sphinx
-            sphinx-tabs
-            pydata-sphinx-theme
-            sphinx-autodoc-typehints
-            sphinx-exercise
-            sphinx-togglebutton
-            myst-parser<4.0.0
-
-      - name: Download extension package
-        uses: actions/download-artifact@v4
-        with:
-          name: extension-artifacts
-
-      - name: Install the extension
-        shell: bash -l {0}
-        run: |
-          set -eux
-          cp ./jupytergis_core/dist/jupytergis*.whl ./jupytergis_lab/dist/jupytergis*.whl ./jupytergis_qgis/dist/jupytergis*.whl .
-          python -m pip install jupytergis*.whl
-
-      - name: Build the docs site
-        shell: bash -l {0}
-        working-directory: docs
-        run: |
-          set -eux
-          sphinx-build . dist
-
-      - name: Upload artifact
-        id: upload-docs-artifact
-        uses: actions/upload-pages-artifact@v3
-        with:
-          path: ./docs/dist
-          retention-days: 30
-
-  deploy:
-    needs: build-docs-and-lite
-    if: github.ref == 'refs/heads/main'
-    permissions:
-      pages: write
-      id-token: write
-
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-
-    runs-on: ubuntu-latest
-    steps:
-      - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@v4
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 1b6be8391..84b970360 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -20,11 +20,13 @@ build:
     # Override the create_environment step (undocumented feature) to create
     # multiple environments.
     create_environment:
+      # Pin micromamba
+      - /bin/bash --login -c "micromamba self-update --version 2.0.5"
       # Create the env for building the docs
       - /bin/bash --login -c "micromamba env create -n jupytergis-docs -f docs/environment-docs.yml"
       # Create the isolated env for building JupyterGIS
-      - /bin/bash --login -c "micromamba create -n jupytergis-build -c conda-forge yarn=3 hatch pip python=3.12"
-      - /bin/bash --login -c "micromamba run -n jupytergis-build pip install -r requirements-build.txt"
+      - /bin/bash --login -c "micromamba create -n jupytergis-build -c conda-forge nodejs hatch pip python=3.13"
+      - /bin/bash --login -c "micromamba run -n jupytergis-build pip install 'jupyterlab==4.3' 'datamodel-code-generator>=0.23.0'"
 
     # Override the install step to do nothing - we already created the envs
     install:
@@ -33,18 +35,8 @@ build:
     # Before building the docs, build JupyterGIS in its isolated environment,
     # then install the wheels into the docs environment.
     pre_build:
-      - /bin/bash --login -c "micromamba run -n jupytergis-build yarn install"
-      - /bin/bash --login -c "micromamba run -n jupytergis-build yarn dev"
-      - /bin/bash --login -c "micromamba run -n jupytergis-build jupyter labextension list 2>&1 | grep -ie 'jupytergis-core.*OK'"
-      - /bin/bash --login -c "micromamba run -n jupytergis-build jupyter labextension list 2>&1 | grep -ie 'jupytergis-lab.*OK'"
-      - /bin/bash --login -c "micromamba run -n jupytergis-build yarn build:packages"
-
-      - |-
-        /bin/bash --login -c "micromamba run -n jupytergis-docs \
-          python -m pip install \
-          $(ls ./python/jupytergis_core/dist/jupytergis*.whl) \
-          $(ls ./python/jupytergis_lab/dist/jupytergis*.whl) \
-          $(ls ./python/jupytergis_qgis/dist/jupytergis*.whl)"
+      - /bin/bash --login -c "micromamba run -n jupytergis-build jlpm install"
+      - /bin/bash --login -c "micromamba run -n jupytergis-build jlpm build"
 
     build:
       html:
diff --git a/README.md b/README.md
index 856b50116..8ed6ea086 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,9 @@
 [![lite-badge]][lite] [![docs-badge]][docs]
 
 [lite-badge]: https://jupyterlite.rtfd.io/en/latest/_static/badge.svg
-[lite]: https://geojupyter.github.io/jupytergis/lite/lab/index.html?path=france_hiking.jGIS/
+[lite]: https://jupytergis.readthedocs.io/en/latest/lite/lab/index.html?path=france_hiking.jGIS/
 [docs-badge]: https://readthedocs.org/projects/jupytergis/badge/?version=latest
-[docs]: https://geojupyter.github.io/jupytergis
+[docs]: https://jupytergis.readthedocs.io
 
 ⚠️ This extension is work in progress. Features and APIs are subject to change quickly. ⚠️
 
@@ -18,7 +18,7 @@
 - **QGIS File Support**: Load, visualize, and manipulate QGIS project files (`.qgs`, `.qgz`), and other GIS data formats.
 - **Interactive Maps**: Render interactive maps and geospatial visualizations within Jupyter notebooks using the JupyterGIS Python API.
 
-## [🪄 Try JupyterGIS now! ✨](https://geojupyter.github.io/jupytergis/lite/lab/index.html?path=france_hiking.jGIS)
+## [🪄 Try JupyterGIS now! ✨](https://jupytergis.readthedocs.io/en/latest/lite/lab/index.html?path=france_hiking.jGIS)
 
 This demo runs a JupyterLab instance entirely in your browser with WebAssembly! 🤯
 
diff --git a/docs/conf.py b/docs/conf.py
index 54459086c..344cb8eab 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -40,6 +40,7 @@
     "../examples/*.gif",
     "../examples/*.geojson",
     "../examples/*.tif",
+    "../examples/*.ipynb",
 ]
 jupyterlite_dir = "."
 jupyterlite_config = "jupyter_lite_config.json"
diff --git a/docs/environment-docs.yml b/docs/environment-docs.yml
index 3f1d8319d..28feb5133 100644
--- a/docs/environment-docs.yml
+++ b/docs/environment-docs.yml
@@ -7,8 +7,8 @@ dependencies:
   - pip # Needed to install jupytergis wheels in RTD build
 
   # Build docs & JupyterLite
-  - jupyterlite-core>=0.4.0,<0.6.0
-  - jupyterlite-xeus>=2,<3
+  - jupyterlite-core
+  - jupyterlite-xeus>=3.1.3,<4
   - jupyterlite-sphinx
   - sphinx
   - sphinx-tabs
@@ -16,9 +16,5 @@ dependencies:
   - sphinx-autodoc-typehints
   - sphinx-exercise
   - sphinx-togglebutton
-
+  - myst-parser
   - xeus-python # TODO: Do we need this?
-
-  # Install myst-parser via pip
-  - pip:
-      - myst-parser<4.0.0
diff --git a/docs/environment.yml b/docs/environment.yml
index cf391c4ef..46243e9b9 100644
--- a/docs/environment.yml
+++ b/docs/environment.yml
@@ -1,6 +1,18 @@
 name: xeus-python-kernel
 channels:
-  - https://repo.mamba.pm/emscripten-forge
+  - https://prefix.dev/emscripten-forge-dev
   - conda-forge
 dependencies:
+  - python=3.13
+  - pip
   - xeus-python
+  - requests
+  - jupyter_ydoc=2.1.5
+  - ypywidgets>=0.9.6,<0.10.0
+  - comm>=0.1.2,<0.2.0
+  - pydantic>=2,<3
+  - pip:
+      - yjs-widgets>=0.4,<0.5
+      - my-jupyter-shared-drive
+      - ../python/jupytergis_lab
+      - ../python/jupytergis_core
diff --git a/docs/jupyter-lite.json b/docs/jupyter-lite.json
index b865b7086..1907b9a8e 100644
--- a/docs/jupyter-lite.json
+++ b/docs/jupyter-lite.json
@@ -1,10 +1,4 @@
 {
   "jupyter-lite-schema-version": 0,
-  "jupyter-config-data": {
-    "appName": "JupyterGIS App",
-    "disabledExtensions": [
-      "@jupyter/collaboration-extension",
-      "@jupyter/docprovider-extension"
-    ]
-  }
+  "jupyter-config-data": {}
 }
diff --git a/packages/base/src/widget.ts b/packages/base/src/widget.ts
index cb657f98c..b21e34b2b 100644
--- a/packages/base/src/widget.ts
+++ b/packages/base/src/widget.ts
@@ -197,12 +197,12 @@ export class JupyterGISPanel extends SplitPanel {
 
         (this._consoleTracker.widgetAdded as any).emit(consolePanel);
         await consolePanel.sessionContext.ready;
-        await consolePanel.console.inject(
-          `from jupytergis_lab import GISDocument\ndoc = GISDocument("${jgisPath}")`
-        );
         this.addWidget(this._consoleView);
         this.setRelativeSizes([2, 1]);
         this._consoleOpened = true;
+        await consolePanel.console.inject(
+          `from jupytergis_lab import GISDocument\ndoc = GISDocument("${jgisPath}")`
+        );
         consolePanel.console.sessionContext.kernelChanged.connect((_, arg) => {
           if (!arg.newValue) {
             this.removeConsole();
diff --git a/python/jupytergis_core/src/jgisplugin/modelfactory.ts b/python/jupytergis_core/src/jgisplugin/modelfactory.ts
index f4eeaad3c..38c1967c4 100644
--- a/python/jupytergis_core/src/jgisplugin/modelfactory.ts
+++ b/python/jupytergis_core/src/jgisplugin/modelfactory.ts
@@ -18,8 +18,7 @@ export class JupyterGISModelFactory
   /**
    * Whether the model is collaborative or not.
    */
-  readonly collaborative =
-    document.querySelectorAll('[data-jupyter-lite-root]')[0] === undefined;
+  readonly collaborative = true;
 
   /**
    * The name of the model.
diff --git a/python/jupytergis_lab/jupytergis_lab/__init__.py b/python/jupytergis_lab/jupytergis_lab/__init__.py
index 47c21a2fc..0d4f3c58f 100644
--- a/python/jupytergis_lab/jupytergis_lab/__init__.py
+++ b/python/jupytergis_lab/jupytergis_lab/__init__.py
@@ -8,13 +8,6 @@
 
     __version__ = "dev"
 
-import sys
-
-if sys.platform == "emscripten":
-    raise ImportError(
-        "Cannot use the JupyterGIS Python API in a JupyterLite kernel yet"
-    )
-
 from .notebook import GISDocument  # noqa
 
 
diff --git a/python/jupytergis_lab/jupytergis_lab/notebook/gis_document.py b/python/jupytergis_lab/jupytergis_lab/notebook/gis_document.py
index 3d0bf9b27..a19b2f22e 100644
--- a/python/jupytergis_lab/jupytergis_lab/notebook/gis_document.py
+++ b/python/jupytergis_lab/jupytergis_lab/notebook/gis_document.py
@@ -29,7 +29,6 @@
     LayerType,
     SourceType,
 )
-from .utils import normalize_path
 
 logger = logging.getLogger(__file__)
 
@@ -64,11 +63,6 @@ def __init__(
 
         comm_metadata = GISDocument._path_to_comm(path)
 
-        # Create an empty project file if it does not exist
-        if comm_metadata["path"] and not os.path.isfile(comm_metadata["path"]):
-            with open(comm_metadata["path"], "w") as fd:
-                fd.write("{}")
-
         ydoc = Doc()
 
         super().__init__(
@@ -708,7 +702,7 @@ def _path_to_comm(cls, filePath: Optional[str]) -> Dict:
         contentType = None
 
         if filePath is not None:
-            path = normalize_path(filePath)
+            path = filePath
             file_name = Path(path).name
             try:
                 ext = file_name.split(".")[1].lower()
diff --git a/python/jupytergis_lab/jupytergis_lab/notebook/tests/test_api.py b/python/jupytergis_lab/jupytergis_lab/notebook/tests/test_api.py
index 45a1ee15c..8f723100a 100644
--- a/python/jupytergis_lab/jupytergis_lab/notebook/tests/test_api.py
+++ b/python/jupytergis_lab/jupytergis_lab/notebook/tests/test_api.py
@@ -4,23 +4,6 @@
 from jupytergis_lab import GISDocument
 
 
-class ProjectCreation(unittest.TestCase):
-    filename = "test.jgis"
-
-    def setUp(self):
-        if os.path.isfile(self.filename):
-            os.remove(self.filename)
-
-    def tearDown(self):
-        if os.path.isfile(self.filename):
-            os.remove(self.filename)
-
-    def test_creation(self):
-        self.doc = GISDocument(self.filename)
-
-        assert os.path.isfile(self.filename)
-
-
 class VectorTileTests(unittest.TestCase):
     def setUp(self):
         self.doc = GISDocument()
diff --git a/python/jupytergis_lab/jupytergis_lab/notebook/utils.py b/python/jupytergis_lab/jupytergis_lab/notebook/utils.py
index 36ca3a583..064d09c97 100644
--- a/python/jupytergis_lab/jupytergis_lab/notebook/utils.py
+++ b/python/jupytergis_lab/jupytergis_lab/notebook/utils.py
@@ -1,4 +1,3 @@
-import os
 from enum import Enum
 from urllib.parse import urljoin
 import requests
@@ -16,10 +15,3 @@ def multi_urljoin(*parts) -> str:
         parts[0],
         "/".join(part for part in parts[1:]),
     )
-
-
-def normalize_path(path: str) -> str:
-    if os.path.isabs(path):
-        return path
-    else:
-        return os.path.abspath(os.path.join(os.getcwd(), path))
diff --git a/python/jupytergis_lab/package.json b/python/jupytergis_lab/package.json
index 8745166bc..40b345908 100644
--- a/python/jupytergis_lab/package.json
+++ b/python/jupytergis_lab/package.json
@@ -69,7 +69,7 @@
     "@lumino/messaging": "^2.0.0",
     "@lumino/widgets": "^2.0.0",
     "react": "^18.0.1",
-    "yjs-widgets": "^0.3.9"
+    "yjs-widgets": "^0.4"
   },
   "devDependencies": {
     "@jupyterlab/builder": "^4.3.0",
diff --git a/python/jupytergis_lab/pyproject.toml b/python/jupytergis_lab/pyproject.toml
index 974618b1d..713d5cf6f 100644
--- a/python/jupytergis_lab/pyproject.toml
+++ b/python/jupytergis_lab/pyproject.toml
@@ -26,7 +26,7 @@ dependencies = [
   "requests",
   "jupyter-ydoc>=2,<4",
   "ypywidgets>=0.9.0,<0.10.0",
-  "yjs-widgets>=0.3.9,<0.4",
+  "yjs-widgets>=0.4,<0.5",
   "comm>=0.1.2,<0.2.0",
   "pydantic>=2,<3",
   "jupytergis_core>=0.1.0,<1",
diff --git a/python/jupytergis_lab/src/notebookrenderer.ts b/python/jupytergis_lab/src/notebookrenderer.ts
index af15ae3b6..c262c5d3c 100644
--- a/python/jupytergis_lab/src/notebookrenderer.ts
+++ b/python/jupytergis_lab/src/notebookrenderer.ts
@@ -16,6 +16,7 @@ import {
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
+import { showErrorMessage } from '@jupyterlab/apputils';
 import { ConsolePanel } from '@jupyterlab/console';
 import { PathExt } from '@jupyterlab/coreutils';
 import { NotebookPanel } from '@jupyterlab/notebook';
@@ -24,10 +25,11 @@ import { Toolbar } from '@jupyterlab/ui-components';
 import { CommandRegistry } from '@lumino/commands';
 import { MessageLoop } from '@lumino/messaging';
 import { Panel, Widget } from '@lumino/widgets';
-import * as Y from 'yjs';
 import {
   IJupyterYWidget,
   IJupyterYWidgetManager,
+  JupyterYDoc,
+  // JupyterYDoc,
   JupyterYModel
 } from 'yjs-widgets';
 
@@ -80,10 +82,6 @@ export class YJupyterGISLuminoWidget extends Panel {
    */
   private _buildWidget = (options: IOptions) => {
     const { commands, model, externalCommands, tracker } = options;
-    // Ensure the model filePath is relevant with the shared model path.
-    if (model.sharedModel.getState('path')) {
-      model.filePath = model.sharedModel.getState('path') as string;
-    }
     const content = new JupyterGISPanel({ model });
     let toolbar: Toolbar | undefined = undefined;
     if (model.filePath) {
@@ -132,18 +130,57 @@ export const notebookRendererPlugin: JupyterFrontEndPlugin<void> = {
       console.error('Missing IJupyterYWidgetManager token!');
       return;
     }
-    if (!drive) {
-      console.error(
-        'Cannot setup JupyterGIS Python API without a collaborative drive'
-      );
-      return;
-    }
+
     class YJupyterGISModelFactory extends YJupyterGISModel {
-      ydocFactory(commMetadata: ICommMetadata): Y.Doc {
+      protected async initialize(commMetadata: {
+        [key: string]: any;
+      }): Promise<void> {
         const { path, format, contentType } = commMetadata;
         const fileFormat = format as Contents.FileFormat;
+
+        if (!drive) {
+          showErrorMessage(
+            'Error using the JupyterGIS Python API',
+            'You cannot use the JupyterGIS Python API without a collaborative drive. You need to install a package providing collaboration features (e.g. jupyter-collaboration).'
+          );
+          throw new Error(
+            'Failed to create the YDoc without a collaborative drive'
+          );
+        }
+
+        // The path of the project is relative to the path of the notebook
+        let currentWidgetPath = '';
+        const currentWidget = app.shell.currentWidget;
+        if (
+          currentWidget instanceof NotebookPanel ||
+          currentWidget instanceof ConsolePanel
+        ) {
+          currentWidgetPath = currentWidget.sessionContext.path;
+        }
+
+        let localPath = '';
+        if (path) {
+          localPath = PathExt.join(PathExt.dirname(currentWidgetPath), path);
+
+          // If the file does not exist yet, create it
+          try {
+            await app.serviceManager.contents.get(localPath);
+          } catch (e) {
+            await app.serviceManager.contents.save(localPath, {
+              content: btoa('{}'),
+              format: 'base64'
+            });
+          }
+        } else {
+          // If the user did not provide a path, do not create
+          localPath = PathExt.join(
+            PathExt.dirname(currentWidgetPath),
+            'unsaved_project'
+          );
+        }
+
         const sharedModel = drive!.sharedModelFactory.createNew({
-          path,
+          path: localPath,
           format: fileFormat,
           contentType,
           collaborative: true
@@ -153,27 +190,10 @@ export const notebookRendererPlugin: JupyterFrontEndPlugin<void> = {
         });
 
         this.jupyterGISModel.contentsManager = app.serviceManager.contents;
+        this.jupyterGISModel.filePath = localPath;
 
-        if (!sharedModel) {
-          // The path of the project is set to the path of the notebook, to be able to
-          // add local geoJSON/shape file in a "file-less" project.
-          let currentWidgetPath: string | undefined = undefined;
-          const currentWidget = app.shell.currentWidget;
-          if (
-            currentWidget instanceof NotebookPanel ||
-            currentWidget instanceof ConsolePanel
-          ) {
-            currentWidgetPath = currentWidget.sessionContext.path;
-          }
-
-          if (currentWidgetPath) {
-            this.jupyterGISModel.filePath = PathExt.join(
-              PathExt.dirname(currentWidgetPath),
-              'unsaved_project'
-            );
-          }
-        }
-        return this.jupyterGISModel.sharedModel.ydoc;
+        this.ydoc = this.jupyterGISModel.sharedModel.ydoc;
+        this.sharedModel = new JupyterYDoc(commMetadata, this.ydoc);
       }
     }
 
diff --git a/yarn.lock b/yarn.lock
index 02bf94bf7..3740c67e0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -849,7 +849,7 @@ __metadata:
     rimraf: ^3.0.2
     typescript: ^5
     yjs: ^13.5.0
-    yjs-widgets: ^0.3.9
+    yjs-widgets: ^0.4
   languageName: unknown
   linkType: soft
 
@@ -11471,9 +11471,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"yjs-widgets@npm:^0.3.9":
-  version: 0.3.9
-  resolution: "yjs-widgets@npm:0.3.9"
+"yjs-widgets@npm:^0.4":
+  version: 0.4.0
+  resolution: "yjs-widgets@npm:0.4.0"
   dependencies:
     "@jupyter/ydoc": ^2.0.0 || ^3.0.0-a3
     "@jupyterlab/application": ^4.0.0
@@ -11489,7 +11489,7 @@ __metadata:
     uuid: ^9.0.0
     webpack: ^5.77.0
     webpack-cli: ^5.0.1
-  checksum: 463d0d2e18cfbe9c8eb769fe25390a03a3ee3c50741763de0eb3c15806d55ab5c0b6a7ace8eef8367275fd15100a4b4f4cab21a0dd9f49a18538d2c952ecdd04
+  checksum: 147fc7ae1c3d13fd591d434af33d439bc20d23494ded601dd8da5986426c6c896d7ff2a6296e24bda8d5ee17921c5c390c3b095f14fd5195506c0f891747e2fd
   languageName: node
   linkType: hard