diff --git a/.devcontainer/README.md b/.devcontainer/README.md
new file mode 100644
index 0000000..2dd506d
--- /dev/null
+++ b/.devcontainer/README.md
@@ -0,0 +1,9 @@
+# Devcontainer Configuration
+
+This folder contains configuration files required for Codespaces/devcontainers.
+Please do not modify its contents unless you know what you are doing and there
+is a specific change to the devcontainer configuration you need to make.
+
+If you believe you have a broken configuration or are unsure if you have the
+latest version of the configuration, please follow the 
+[instructions to add codespaces to your project](https://docs.opensafely.org/getting-started/how-to/add-github-codespaces-to-your-project/).
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 0000000..978488f
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,55 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/python
+{
+    "name": "OpenSAFELY",
+    "image": "ghcr.io/opensafely-core/research-template:v0",
+    // Features to add to the dev container. More info: https://containers.dev/features.
+    "features": {
+        "ghcr.io/devcontainers/features/docker-in-docker:2": {}
+    },
+    "postCreateCommand": "/bin/bash /opt/devcontainer/postCreate.sh ${containerWorkspaceFolder}",
+    "postAttachCommand": "/bin/bash /opt/devcontainer/postAttach.sh",
+    "forwardPorts": [
+        8787
+    ],
+    "portsAttributes": {
+        "8787": {
+            "label": "RStudio IDE"
+        }
+    },
+    // Configure tool-specific properties.
+    "customizations": {
+        "codespaces": {
+            "repositories": {
+                "opensafely/server-instructions": {
+                    "permissions": {
+                        "contents": "read"
+                    }
+                }
+            }
+        },
+        "vscode": {
+            "extensions": [
+                "ms-python.python",
+                "ms-toolsai.jupyter",
+                "ms-toolsai.jupyter-renderers"
+            ],
+            "settings": {
+                "extensions.ignoreRecommendations": true,
+                "files.autoSave": "afterDelay",
+                "files.autoSaveDelay": 1000,
+                "git.autofetch": true,
+                "python.analysis.extraPaths": [".devcontainer/ehrql-main/"],
+                "python.defaultInterpreterPath": "/opt/venv/bin/python",
+                "python.terminal.activateEnvInCurrentTerminal": true,
+                "python.terminal.activateEnvironment": true,
+                "window.autoDetectColorScheme": true
+            }
+        }
+    },
+    // Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+    // "remoteUser": "root"
+    "remoteEnv": {
+        "MAX_WORKERS": "2"
+    }
+}
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..5d37250
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,6 @@
+# Set the default behavior, in case people don't have core.autocrlf set.
+* text=auto
+
+# ensure unix line endings on windows for files that need them.
+*.sh eol=lf
+codelists/* eol=lf
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..27f4a0a
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,7 @@
+version: 2
+
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
diff --git a/.github/workflows/setup.yaml b/.github/workflows/setup.yaml
new file mode 100644
index 0000000..d433966
--- /dev/null
+++ b/.github/workflows/setup.yaml
@@ -0,0 +1,45 @@
+name: Setup repository
+on:
+  workflow_dispatch:
+  push:
+      branches: [main]
+permissions:
+  contents: write
+jobs:
+  setup:
+    name: Initialise OpenSAFELY project.
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Update README.md and remove action
+        shell: bash
+        run: |
+          export GITHUB_REPOSITORY_OWNER="$(echo $GITHUB_REPOSITORY | awk -F/ '{print $1}')"
+          export GITHUB_REPOSITORY_NAME="$(echo $GITHUB_REPOSITORY | awk -F/ '{print $2}')"
+          envsubst < README.md > tmp && mv tmp README.md
+          rm .github/workflows/setup.yaml
+      - name: Do not run on template repository
+        id: is_template
+        # The only way to trigger this to run when used as a template is on
+        # push to main.  But that means it would also trigger when we push to
+        # the template repo itself, which we do not want. So, check if we are
+        # in a template repo
+        run: |
+          is_template=false
+          curl --silent -X GET \
+            -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
+            -H "Accept: application/vnd.github.baptiste-preview+json" \
+            https://api.github.com/repos/$GITHUB_REPOSITORY \
+            | jq --exit-status '.is_template == false' || is_template=true
+          # output true/false so later actions can be skipped
+          echo "::set-output name=is_template::$is_template"
+      - name: Commit changes
+        # only actually commit the changes if this is not a template repo
+        if: steps.is_template.outputs.is_template == 'false'
+        run: |
+          # use the same author as the initial commit
+          git config user.email "$(git log -1 --pretty=format:'%ae')"
+          git config user.name "$(git log -1 --pretty=format:'%an')"
+          git add .
+          git commit --amend --no-edit
+          git push origin $GITHUB_REF --force
diff --git a/.github/workflows/test_runner.yaml b/.github/workflows/test_runner.yaml
new file mode 100644
index 0000000..a3f3dc4
--- /dev/null
+++ b/.github/workflows/test_runner.yaml
@@ -0,0 +1,17 @@
+name: Test that the project is runnable
+
+on: [push, workflow_dispatch]
+env:
+  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  DOCKER_RO_TOKEN: ${{ secrets.DOCKER_RO_TOKEN }}
+  STATA_LICENSE: ${{ secrets.STATA_LICENSE }}
+  HONEYCOMB_API_KEY: ${{ secrets.HONEYCOMB_API_KEY }}
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    name: Test the project can run, using dummy data
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+    - name: Test that the project is runnable
+      uses: opensafely-core/research-action@v2
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1c206cf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,12 @@
+*~
+model.log
+*/input.csv
+__pycache__
+.python-version
+/output/*
+metadata/*
+venv/
+.DS_Store
+.Rhistory
+.Rproj.user/
+.devcontainer/ehrql-main/
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
new file mode 100644
index 0000000..a67970f
--- /dev/null
+++ b/.vscode/tasks.json
@@ -0,0 +1,25 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "OpenSAFELY run project",
+            "type": "shell",
+            "command": "opensafely run run_all -f",
+            "problemMatcher": [],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "presentation": {
+                "echo": true,
+                "reveal": "always",
+                "focus": true,
+                "panel": "new",
+                "showReuseMessage": false,
+                "clear": true,
+            }
+        }
+    ]
+}
\ No newline at end of file
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..df56052
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) {{current_year}} {{organisation}}
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..db682a6
--- /dev/null
+++ b/README.md
@@ -0,0 +1,21 @@
+# ${GITHUB_REPOSITORY_NAME}
+
+[View on OpenSAFELY](https://jobs.opensafely.org/repo/https%253A%252F%252Fgithub.com%252Fopensafely%252F${GITHUB_REPOSITORY_NAME})
+
+Details of the purpose and any published outputs from this project can be found at the link above.
+
+The contents of this repository MUST NOT be considered an accurate or valid representation of the study or its purpose. 
+This repository may reflect an incomplete or incorrect analysis with no further ongoing work.
+The content has ONLY been made public to support the OpenSAFELY [open science and transparency principles](https://www.opensafely.org/about/#contributing-to-best-practice-around-open-science) and to support the sharing of re-usable code for other subsequent users.
+No clinical, policy or safety conclusions must be drawn from the contents of this repository.
+
+# About the OpenSAFELY framework
+
+The OpenSAFELY framework is a Trusted Research Environment (TRE) for electronic
+health records research in the NHS, with a focus on public accountability and
+research quality.
+
+Read more at [OpenSAFELY.org](https://opensafely.org).
+
+# Licences
+As standard, research projects have a MIT license. 
diff --git a/analysis/dataset_definition.py b/analysis/dataset_definition.py
new file mode 100644
index 0000000..18824f6
--- /dev/null
+++ b/analysis/dataset_definition.py
@@ -0,0 +1,14 @@
+from ehrql import create_dataset
+from ehrql.tables.tpp import patients, practice_registrations
+
+dataset = create_dataset()
+
+index_date = "2020-03-31"
+
+has_registration = practice_registrations.for_patient_on(
+    index_date
+).exists_for_patient()
+
+dataset.define_population(has_registration)
+
+dataset.sex = patients.sex
diff --git a/codelists/codelists.json b/codelists/codelists.json
new file mode 100644
index 0000000..5cc232f
--- /dev/null
+++ b/codelists/codelists.json
@@ -0,0 +1,3 @@
+{
+  "files": {}
+}
\ No newline at end of file
diff --git a/codelists/codelists.txt b/codelists/codelists.txt
new file mode 100644
index 0000000..e69de29
diff --git a/docs/.gitkeep b/docs/.gitkeep
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/docs/.gitkeep
@@ -0,0 +1 @@
+
diff --git a/logs/.gitkeep b/logs/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/output/.gitkeep b/output/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/project.yaml b/project.yaml
new file mode 100644
index 0000000..0aadb83
--- /dev/null
+++ b/project.yaml
@@ -0,0 +1,12 @@
+version: '3.0'
+
+# Ignore this`expectation` block. It is required but not used, and will be removed in future versions.
+expectations:
+  population_size: 1000
+
+actions:
+  generate_dataset:
+    run: ehrql:v1 generate-dataset analysis/dataset_definition.py --output output/dataset.csv.gz
+    outputs:
+      highly_sensitive:
+        dataset: output/dataset.csv.gz