diff --git a/_toc.yml b/_toc.yml
index fe670d42..3072c831 100644
--- a/_toc.yml
+++ b/_toc.yml
@@ -321,6 +321,7 @@ parts:
       - file: contributing/roles
       - file: contributing/contributing_guidelines
       - file: contributing/developing_a_course
+      - file: contributing/new_course_checklist_timeline
       - file: contributing/suggestions_form
 
   - caption: Community Guidelines and Policy Information
diff --git a/contributing/new_course_checklist_timeline.ipynb b/contributing/new_course_checklist_timeline.ipynb
new file mode 100644
index 00000000..e69e4c98
--- /dev/null
+++ b/contributing/new_course_checklist_timeline.ipynb
@@ -0,0 +1,83 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "06e8fcaf-9d9a-4584-9747-d7129c96b31c",
+   "metadata": {},
+   "source": [
+    "# New Course Checklist and Timeline  \n",
+    "\n",
+    "## Timescales & Ordering  \n",
+    "\n",
+    "### **12 weeks before delivery**  \n",
+    "- [ ] Schedule and hold **initial logistics call** with Programme Management and Delivery Team  \n",
+    "- [ ] Identify delivery lead and delivery team members  \n",
+    "- [ ] Identify materials reviewer for **materials appropriateness** review (a subject matter expert who will assess whether the content is accurate, complete, and suitable for the intended audience; this review is separate from the functionality and accessibility review conducted later)\n",
+    "- [ ] Define roles: Developer, Leader, Helper, Participant, Programme Management  \n",
+    "- [ ] Schedule recurring project check-ins  \n",
+    "- [ ] Open GitHub Issue for the new course; create feature branch in [CfRR_Courses repo](https://github.com/coding-for-reproducible-research/CfRR_Courses)  \n",
+    "- [ ] Draft **course objectives** and detailed **learning objectives** for each section of the course\n",
+    "- [ ] Identify a high-level timeline for the delivery of the course \n",
+    "\n",
+    "### **6 weeks before delivery**  \n",
+    "- [ ] Submit first complete draft of materials to the branch \n",
+    "- [ ] Assign website functionality review to Liam Berrisford (GitHub: @liamjberrisford)  \n",
+    "- [ ] Assign materials appropriateness review to designated reviewer  \n",
+    "- [ ] Populate `programme_information`  \n",
+    "- [ ] Populate `section_landing_page`  \n",
+    "- [ ] Populate `where_is_my_understanding` quiz (`JSON` files confirmed to render via `JupyterQuiz`)  \n",
+    "- [ ] Add course pages to `_toc.yml`  \n",
+    "- [ ] Check for overlap or missing sections  \n",
+    "- [ ] Test interactive plots, embedded HTML, and widgets  \n",
+    "- [ ] Validate quiz rendering (`display_quiz(\"path/to/quiz.json\")`)  \n",
+    "- [ ] Verify all file paths use **relative paths** for Jupyter Book  \n",
+    "- [ ] Confirm all assets (images, data files, HTML) load correctly  \n",
+    "- [ ] Include slides/PDFs as required and confirm static content links  \n",
+    "- [ ] Execute all notebooks end-to-end  \n",
+    "- [ ] Peer-review code comments and markdown explanations \n",
+    "\n",
+    "### **4 weeks before delivery**  \n",
+    "- [ ] Address all outstanding feedback from internal reviews  \n",
+    "- [ ] Confirm all assets are correctly linked and functional  \n",
+    "- [ ] Ensure Continuous Integration (CI) build for Jupyter Book passes, including accessibility checks\n",
+    "\n",
+    "### **2 weeks before delivery**  \n",
+    "- [ ] Freeze content  \n",
+    "- [ ] Perform final proofreading and “top-to-bottom” notebook execution  \n",
+    "- [ ] Notify Liam Berrisford (@liamjberrisford) that materials are ready for integration into the website  \n",
+    "- [ ] Obtain final sign-off from Liam  \n",
+    "- [ ] Notify [Jenny McGarvey](https://libguides.exeter.ac.uk/prf.php?id=b1cb0409-e2fc-11ef-b755-0647746d9baf) of the upcoming course; specify that it will be available on the website in approximately 2 weeks. \n",
+    "- [ ] Merge feature branch into main  "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "64cc4c3d-6356-4d44-b804-63cffb851b44",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.19"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/pyproject.toml b/pyproject.toml
index d8dd54fb..3493b4fe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,6 @@ matplotlib = "*"
 scikit-learn = "*"
 pyvis = "*"
 plotly = "^6.0.0"
-snowballstemmer = "2.2.0"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]