diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index 5f1dcc2..2abcafb 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -16,4 +16,4 @@
 <!--- Links to any documentation -->
 <!--- Links to any related PRs -->
 
-# Screenshots (if appropriate):
+# Screenshots (if appropriate)
diff --git a/.github/workflows/mega-linter.yml b/.github/workflows/mega-linter.yml
new file mode 100644
index 0000000..a8e3ec3
--- /dev/null
+++ b/.github/workflows/mega-linter.yml
@@ -0,0 +1,52 @@
+# MegaLinter GitHub Action configuration file
+# More info at https://megalinter.io
+---
+name: MegaLinter
+
+# Trigger mega-linter at every push. Action will also be visible from
+# Pull Requests to main
+on:
+  pull_request:
+    branches:
+      - main
+
+env:
+  APPLY_FIXES: none
+  APPLY_FIXES_EVENT: pull_request
+
+concurrency:
+  group: ${{ github.ref }}-${{ github.workflow }}
+  cancel-in-progress: true
+
+jobs:
+  megalinter:
+    name: MegaLinter
+    runs-on: ubuntu-latest
+
+    # Give the default GITHUB_TOKEN write permission to comment the Megalinter output onto pull requests
+    # and read permission to the codebase
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+      # Git Checkout
+      - name: Checkout Code
+        uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.PAT || secrets.GITHUB_TOKEN }}
+
+      # MegaLinter
+      - name: MegaLinter
+
+        # You can override MegaLinter flavor used to have faster performances
+        # More info at https://megalinter.io/latest/flavors/
+        uses: oxsecurity/megalinter@v8
+
+        id: ml
+
+        # All available variables are described in documentation
+        # https://megalinter.io/latest/config-file/
+        env:
+          VALIDATE_ALL_CODEBASE: true
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index fbf7567..f4b8a0d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -137,4 +137,7 @@ dmypy.json
 
 # App working directories
 tmp*/
-.DS_Store
\ No newline at end of file
+.DS_Store
+
+# Megalinter reports
+megalinter-reports/
\ No newline at end of file
diff --git a/.markdownlint.yaml b/.markdownlint.yaml
new file mode 100644
index 0000000..4f8c675
--- /dev/null
+++ b/.markdownlint.yaml
@@ -0,0 +1,6 @@
+# markdownlint YAML configuration
+
+# MD024/no-duplicate-heading/no-duplicate-header - Multiple headings with the same content
+MD024:
+  # Only check sibling headings
+  siblings_only: true
\ No newline at end of file
diff --git a/.mega-linter.yml b/.mega-linter.yml
new file mode 100644
index 0000000..c3a753a
--- /dev/null
+++ b/.mega-linter.yml
@@ -0,0 +1,16 @@
+# Configuration file for MegaLinter
+#
+# See all available variables at https://megalinter.io/latest/config-file/ and in
+# linters documentation
+
+# all, none, or list of linter keys
+APPLY_FIXES: none
+
+# If you use ENABLE_LINTERS variable, all other linters will be disabled by
+# default
+ENABLE_LINTERS:
+  - BASH_SHELLCHECK
+  - MARKDOWN_MARKDOWNLINT
+
+# Ignore the pull request template
+FILTER_REGEX_EXCLUDE: .github/pull_request_template.md
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 71ec66f..de9bcc3 100644
--- a/Makefile
+++ b/Makefile
@@ -67,3 +67,21 @@ integration_test: up
 	APP_CONFIG=TestingConfig pipenv run pytest tests/integration
 	docker compose down
 
+megalint:  ## Run the mega-linter.
+	docker run --platform linux/amd64 --rm \
+		-v /var/run/docker.sock:/var/run/docker.sock:rw \
+		-v $(shell pwd):/tmp/lint:rw \
+		oxsecurity/megalinter:v8
+
+megalint-fix:  ## Run the mega-linter and attempt to auto fix any issues.
+	docker run --platform linux/amd64 --rm \
+		-v /var/run/docker.sock:/var/run/docker.sock:rw \
+		-v $(shell pwd):/tmp/lint:rw \
+		-e APPLY_FIXES=all \
+		oxsecurity/megalinter:v8
+
+clean-megalint: ## Clean the temporary files.
+	rm -rf megalinter-reports
+
+lint-check: clean-megalint megalint
+
diff --git a/README.md b/README.md
index 4407e34..04086d4 100644
--- a/README.md
+++ b/README.md
@@ -30,13 +30,15 @@ or to run it in Pycharm, use the run template that's specified and it should wor
 
 The site uses PyBabel for translations.
 
-Text to translate is marked up in `.html` and `.py` templates and files with the [gettext](https://en.wikipedia.org/wiki/Gettext) mechanism. Then a `messages.pot` file is build via Pybabel, which collates all the text to translate. Based on the content of the `.pot` file translation files `messages.po` are created for all specified language codes. Finally, the `.po` files are compiled into `.mo` files, which are then used on the page.
+Text to translate is marked up in `.html` and `.py` templates and files with the [gettext](https://en.wikipedia.org/wiki/Gettext) mechanism. Then a `messages.pot` file is build via Pybabel, which collates all the text to translate.
+
+Based on the content of the `.pot` file translation files `messages.po` are created for all specified language codes. Finally, the `.po` files are compiled into `.mo` files, which are then used on the page.
 
 1. Extract text to translation
 
 To build/re-build the translation messages.pot use:
 
-```
+```shell
 pipenv run pybabel extract -F babel.cfg -o rh_ui/translations/messages.pot .
 ```
 
@@ -47,7 +49,7 @@ pipenv run pybabel extract -F babel.cfg -o rh_ui/translations/messages.pot .
 To create a new language messages file, run the following, changing the 2 character language code at the end to the
 required language code. Only generate a individual language file once.
 
-```
+```shell
 pipenv run pybabel init -i rh_ui/translations/messages.pot -d rh_ui/translations -l cy
 ```
 
@@ -56,7 +58,7 @@ pipenv run pybabel init -i rh_ui/translations/messages.pot -d rh_ui/translations
 Once created, you can update the existing language messages.po files to include changes in the messages.pot by running
 the following. This will update ALL language files.
 
-```
+```shell
 pipenv run pybabel update -i rh_ui/translations/messages.pot -d rh_ui/translations
 ```
 
@@ -66,7 +68,7 @@ pipenv run pybabel update -i rh_ui/translations/messages.pot -d rh_ui/translatio
 > Double check your translation files (messages.po) for the `#, fuzzy` comment. This indicates that the tranlsation isn't an exact match and won't be rendered on the page. Double check the translations and remove any incorrectly matched lines, then remove the `fuzzy` comment.
 
 To compile updates to the messages.po files into messages.mo (the file actually used by the site) use:
-```
+```shell
 pipenv run pybabel compile -d rh_ui/translations
 ```
 ## Venom Tests
@@ -96,7 +98,7 @@ against a local HTTP only instance. However, it may be useful for development to
   `Strict-Transport-Security` test case which is bound to fail locally.
 
 * Now run the tests against the docker dev RH UI using the official OVH Venom docker image (
-  See https://github.com/ovh/venom?tab=readme-ov-file#docker-image for more details on running venom and docs on
+  See <https://github.com/ovh/venom?tab=readme-ov-file#docker-image> for more details on running venom and docs on
   configuration).
 
   ```shell
diff --git a/load_templates.sh b/load_templates.sh
index 1d095f5..f09bd7a 100755
--- a/load_templates.sh
+++ b/load_templates.sh
@@ -10,9 +10,9 @@ DESIGN_SYSTEM_VERSION="70.0.2"
 
 TEMP_DIR=$(mktemp -d)
 
-curl -L --url "https://github.com/ONSdigital/design-system/releases/download/$DESIGN_SYSTEM_VERSION/templates.zip" --output ${TEMP_DIR}/templates.zip
-unzip ${TEMP_DIR}/templates.zip -d ${TEMP_DIR}/templates
+curl -L --url "https://github.com/ONSdigital/design-system/releases/download/$DESIGN_SYSTEM_VERSION/templates.zip" --output "${TEMP_DIR}"/templates.zip
+unzip "${TEMP_DIR}"/templates.zip -d "${TEMP_DIR}"/templates
 rm -rf rh_ui/templates/components
 rm -rf rh_ui/templates/layout
-mv ${TEMP_DIR}/templates/templates/* rh_ui/templates/
-rm -rf ${TEMP_DIR}
\ No newline at end of file
+mv "${TEMP_DIR}"/templates/templates/* rh_ui/templates/
+rm -rf "${TEMP_DIR}"
\ No newline at end of file
diff --git a/tests/integration/setup_pubsub.sh b/tests/integration/setup_pubsub.sh
index a8a8d5e..0e883e4 100755
--- a/tests/integration/setup_pubsub.sh
+++ b/tests/integration/setup_pubsub.sh
@@ -1,18 +1,18 @@
 #!/bin/sh
 
 # Wait for pubsub-emulator to come up
-bash -c 'while [[ "$(curl -s -o /dev/null -w ''%{http_code}'' '$PUBSUB_SETUP_HOST')" != "200" ]]; do sleep 1; done'
+bash -c 'while [[ "$(curl -s -o /dev/null -w ''%{http_code}'' '"$PUBSUB_SETUP_HOST"')" != "200" ]]; do sleep 1; done'
 
-curl -X PUT http://$PUBSUB_SETUP_HOST/v1/projects/rh-ui-project/topics/event_uac-update
-curl -X PUT http://$PUBSUB_SETUP_HOST/v1/projects/rh-ui-project/subscriptions/event_uac-update_rh -H 'Content-Type: application/json' -d '{"topic": "projects/rh-ui-project/topics/event_uac-update"}'
+curl -X PUT http://"$PUBSUB_SETUP_HOST"/v1/projects/rh-ui-project/topics/event_uac-update
+curl -X PUT http://"$PUBSUB_SETUP_HOST"/v1/projects/rh-ui-project/subscriptions/event_uac-update_rh -H 'Content-Type: application/json' -d '{"topic": "projects/rh-ui-project/topics/event_uac-update"}'
 
-curl -X PUT http://$PUBSUB_SETUP_HOST/v1/projects/rh-ui-project/topics/event_case-update
-curl -X PUT http://$PUBSUB_SETUP_HOST/v1/projects/rh-ui-project/subscriptions/event_case-update_rh -H 'Content-Type: application/json' -d '{"topic": "projects/rh-ui-project/topics/event_case-update"}'
+curl -X PUT http://"$PUBSUB_SETUP_HOST"/v1/projects/rh-ui-project/topics/event_case-update
+curl -X PUT http://"$PUBSUB_SETUP_HOST"/v1/projects/rh-ui-project/subscriptions/event_case-update_rh -H 'Content-Type: application/json' -d '{"topic": "projects/rh-ui-project/topics/event_case-update"}'
 
-curl -X PUT http://$PUBSUB_SETUP_HOST/v1/projects/rh-ui-project/topics/event_collection-exercise-update
-curl -X PUT http://$PUBSUB_SETUP_HOST/v1/projects/rh-ui-project/subscriptions/event_collection-exercise-update_rh -H 'Content-Type: application/json' -d '{"topic": "projects/rh-ui-project/topics/event_collection-exercise-update"}'
+curl -X PUT http://"$PUBSUB_SETUP_HOST"/v1/projects/rh-ui-project/topics/event_collection-exercise-update
+curl -X PUT http://"$PUBSUB_SETUP_HOST"/v1/projects/rh-ui-project/subscriptions/event_collection-exercise-update_rh -H 'Content-Type: application/json' -d '{"topic": "projects/rh-ui-project/topics/event_collection-exercise-update"}'
 
-curl -X PUT http://$PUBSUB_SETUP_HOST/v1/projects/rh-ui-project/topics/event_survey-update
+curl -X PUT http://"$PUBSUB_SETUP_HOST"/v1/projects/rh-ui-project/topics/event_survey-update
 
-curl -X PUT http://$PUBSUB_SETUP_HOST/v1/projects/rh-ui-project/topics/event_eq-launch
-curl -X PUT http://$PUBSUB_SETUP_HOST/v1/projects/rh-ui-project/subscriptions/event_eq-launch -H 'Content-Type: application/json' -d '{"topic": "projects/rh-ui-project/topics/event_eq-launch"}'
+curl -X PUT http://"$PUBSUB_SETUP_HOST"/v1/projects/rh-ui-project/topics/event_eq-launch
+curl -X PUT http://"$PUBSUB_SETUP_HOST"/v1/projects/rh-ui-project/subscriptions/event_eq-launch -H 'Content-Type: application/json' -d '{"topic": "projects/rh-ui-project/topics/event_eq-launch"}'