diff --git a/.gitignore b/.gitignore
index 5f7b4f8..ce74cdf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,50 +1,40 @@
-# This file contains default .gitignore rules. To use it, copy it to .gitignore,
-# and it will cause files like your settings.php and user-uploaded files to be
-# excluded from Git version control. This is a common strategy to avoid
-# accidentally including private information in public repositories and patch
-# files.
-#
-# Because .gitignore can be specific to your site, this file has a different
-# name; updating Drupal core will not override your custom .gitignore file.
+# Do not edit this file. It is automatically generated by https://www.oliverdavies.uk/build-configs.
 
-# Ignore core when managing all of a project's dependencies with Composer
-# including Drupal core.
-/web/
-!/web/modules/custom/
+.editorconfig
+.env
+.gitattributes
+vendor/
+web/.csslintrc
+web/.eslintignore
+web/.eslintrc.json
+web/.ht.router.php
+web/.htaccess
+web/INSTALL.txt
+web/README.md
+web/autoload.php
+web/core/
+web/example.gitignore
+web/index.php
+web/modules/README.txt
+web/modules/contrib/
+web/profiles/README.txt
+web/robots.txt
+web/sites/*/files/
+web/sites/*/private/
+web/sites/*/services*.yml
+web/sites/*/settings*.php
+web/sites/README.txt
+web/sites/default/default.services.yml
+web/sites/default/default.settings.php
+web/sites/development.services.yml
+web/sites/example.settings.local.php
+web/sites/example.sites.php
+web/sites/simpletest/
+web/themes/README.txt
+web/themes/contrib/
+web/update.php
+web/web.config
 
-# Ignore dependencies that are managed with Composer.
-# Generally you should only ignore the root vendor directory. It's important
-# that core/assets/vendor and any other vendor directories within contrib or
-# custom module, theme, etc., are not ignored unless you purposely do so.
-/vendor/
 
-# Ignore configuration files that may contain sensitive information.
-/web/*/settings*.php
-/web/*/services*.yml
+.dir-env/
 
-# Ignore paths that contain user-generated content.
-/web/*/files
-/web/*/private
-
-# Ignore multi-site test environment.
-/web/simpletest
-
-# If you prefer to store your .gitignore file in the sites/ folder, comment
-# or delete the previous settings and uncomment the following ones, instead.
-
-# Ignore configuration files that may contain sensitive information.
-# */settings*.php
-
-# Ignore paths that contain user-generated content.
-# */files
-# */private
-
-# Ignore multi-site test environment.
-# simpletest
-
-# Nix.
-/.direnv/
-
-/.editorconfig
-/.gitattributes
-/.phpunit.result.cache
diff --git a/.tmux b/.tmux
index 6131250..3356311 100755
--- a/.tmux
+++ b/.tmux
@@ -1,7 +1,5 @@
 #!/usr/bin/env bash
 
-# Based on https://github.com/opdavies/dotfiles/blob/main/bin/t.
-
 set -o errexit
 set -o nounset
 
@@ -9,21 +7,21 @@ session_name="${1:-atdc}"
 session_path="${2:-$(pwd)}"
 
 if tmux has-session -t="${session_name}" 2> /dev/null; then
-  tmux attach -t "${session_name}"
-  exit
+  tmux attach -t "${session_name}" ||
+    tmux switch-client -t "${session_name}"
 fi
 
 tmux new-session -d -s "${session_name}" -n vim -c "${session_path}"
 
-# 1. Main window: Vim, server, shell
+# 1. Main window: Vim.
 tmux send-keys -t "${session_name}:vim" "nvim" Enter
 tmux split-pane -t "${session_name}:vim" -h -c "${session_path}" -p 40
-tmux send-keys -t "${session_name}:vim.right" "php -S 0.0.0.0:9000 -t web" Enter
-tmux split-pane -t "${session_name}:vim" -c "${session_path}" -v
-tmux send-keys -t "${session_name}:vim.bottom-right" "./run test && watch-changes web/modules/custom ./run test" Enter
+tmux send-keys -t "${session_name}:vim.right" "./run start" Enter
 
 # 2. General shell use.
 tmux new-window -t "${session_name}" -c "${session_path}"
 
 tmux switch-client -t "${session_name}:vim.left" ||
   tmux attach -t "${session_name}:vim.left"
+
+# vim: ft=bash
diff --git a/build.yaml b/build.yaml
new file mode 100644
index 0000000..419e152
--- /dev/null
+++ b/build.yaml
@@ -0,0 +1,12 @@
+name: atdc
+type: drupal
+language: php
+
+flake:
+  devshell:
+    packages:
+      - php82
+      - php82Packages.composer
+
+experimental:
+  createTmuxStartupFile: true
diff --git a/flake.lock b/flake.lock
index ec727d9..939f23d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -72,16 +72,16 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1703200384,
-        "narHash": "sha256-q5j06XOsy0qHOarsYPfZYJPWbTbc8sryRxianlEPJN0=",
+        "lastModified": 1706371002,
+        "narHash": "sha256-dwuorKimqSYgyu8Cw6ncKhyQjUDOyuXoxDTVmAXq88s=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "0b3d618173114c64ab666f557504d6982665d328",
+        "rev": "c002c6aa977ad22c60398daaa9be52f2203d0006",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-23.11",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index c7efebc..2481116 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,7 +1,9 @@
+# Do not edit this file. It is automatically generated by https://www.oliverdavies.uk/build-configs.
+
 {
   inputs = {
     devshell.url = "github:numtide/devshell";
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
   };
 
   outputs = inputs@{ flake-parts, ... }:
@@ -12,7 +14,10 @@
 
       perSystem = { config, self', inputs', pkgs, system, ... }: {
         devshells.default = {
-          packages = with pkgs; [ "php82" "php82Packages.composer" ];
+          packages = with pkgs; [
+            "php82"
+            "php82Packages.composer"
+          ];
         };
       };
     };
diff --git a/phpcs.xml.dist b/phpcs.xml.dist
index 19bc6e5..9912848 100644
--- a/phpcs.xml.dist
+++ b/phpcs.xml.dist
@@ -1,13 +1,15 @@
 <?xml version="1.0"?>
+<!-- Do not edit this file. It is automatically generated by https://www.oliverdavies.uk/build-configs. -->
+
 <ruleset name="atdc coding standards">
   <description>PHPCS configuration file for atdc.</description>
 
-  <file>web/modules/custom</file>
-
+  
   <arg value="np"/>
 
-
-    <rule ref="Drupal">
+          <rule ref="DrupalPractice"/>
+    
+  <rule ref="Drupal">
     <exclude name="Drupal.Commenting.ClassComment.Missing"/>
     <exclude name="Drupal.Commenting.DataTypeNamespace.DataTypeNamespace"/>
     <exclude name="Drupal.Commenting.Deprecated"/>
@@ -26,5 +28,4 @@
     <exclude name="Drupal.NamingConventions.ValidFunctionName.ScopeNotCamelCaps"/>
     <exclude name="DrupalPractice.Objects.StrictSchemaDisabled.StrictConfigSchema"/>
   </rule>
-  </ruleset>
-
+</ruleset>
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 6a03a98..f1eddd0 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -1,6 +1,6 @@
 parameters:
 	ignoreErrors:
 		-
-			message: "#^Method Drupal\\\\example\\\\Controller\\\\BlogPageController\\:\\:create\\(\\) should return static\\(Drupal\\\\example\\\\Controller\\\\BlogPageController\\) but returns Drupal\\\\example\\\\Controller\\\\BlogPageController\\.$#"
+			message: "#^Method Drupal\\\\atdc\\\\Controller\\\\BlogPageController\\:\\:create\\(\\) should return static\\(Drupal\\\\atdc\\\\Controller\\\\BlogPageController\\) but returns Drupal\\\\atdc\\\\Controller\\\\BlogPageController\\.$#"
 			count: 1
-			path: web/modules/custom/example/src/Controller/BlogPageController.php
+			path: web/modules/custom/atdc/src/Controller/BlogPageController.php
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index 9f2e38e..8a1dc84 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -1,7 +1,9 @@
-parameters:
-  level: 5
-  paths:
-    - web/modules/custom/example
+# Do not edit this file. It is automatically generated by https://www.oliverdavies.uk/build-configs.
 
-includes:
-  - phpstan-baseline.neon
+parameters:
+  level: 
+  excludePaths:
+    - *Test.php
+    - *TestBase.php
+  paths:
+    
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index fe237de..179546d 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,14 +1,37 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit bootstrap="web/core/tests/bootstrap.php" colors="true">
+<!-- Do not edit this file. It is automatically generated by https://www.oliverdavies.uk/build-configs. -->
+<phpunit
+  beStrictAboutChangesToGlobalState="true"
+  beStrictAboutOutputDuringTests="false"
+  beStrictAboutTestsThatDoNotTestAnything="true"
+  bootstrap="web/core/tests/bootstrap.php"
+  cacheResult="false"
+  colors="true"
+  failOnWarning="true"
+  printerClass="\Drupal\Tests\Listeners\HtmlOutputPrinter"
+>
   <php>
-    <env name="SIMPLETEST_BASE_URL" value="http://localhost:9000"/>
+    <env name="BROWSERTEST_OUTPUT_BASE_URL" value=""/>
+    <env name="BROWSERTEST_OUTPUT_DIRECTORY" value=""/>
+    <env name="MINK_DRIVER_ARGS" value=''/>
+    <env name="MINK_DRIVER_ARGS_WEBDRIVER" value=''/>
+    <env name="MINK_DRIVER_CLASS" value=''/>
+    <env name="SIMPLETEST_BASE_URL" value="http://web"/>
     <env name="SIMPLETEST_DB" value="sqlite://localhost//dev/shm/test.sqlite"/>
+
     <ini name="error_reporting" value="32767"/>
     <ini name="memory_limit" value="-1"/>
   </php>
+   
   <testsuites>
-    <testsuite name="Example tests">
-      <directory suffix="Test.php">./web/modules/**</directory>
+    <testsuite name="functional">
+      <directory>./web/modules/custom/**/tests/**/Functional</directory>
+    </testsuite>
+    <testsuite name="kernel">
+      <directory>./web/modules/custom/**/tests/**/Kernel</directory>
+    </testsuite>
+    <testsuite name="unit">
+      <directory>./web/modules/custom/**/tests/**/Unit</directory>
     </testsuite>
   </testsuites>
 </phpunit>
diff --git a/run b/run
index 652a577..4f786ac 100755
--- a/run
+++ b/run
@@ -1,9 +1,63 @@
 #!/usr/bin/env bash
 
-set -o errexit
-set -o nounset
+# Do not edit this file. It is automatically generated by https://www.oliverdavies.uk/build-configs.
 
-PATH=${PATH}:./vendor/bin
+set -o errexit
+set -o pipefail
+
+# If we're running in CI we need to disable TTY allocation for docker compose
+# commands that enable it by default, such as exec and run.
+TTY="${TTY:-}"
+if [[ ! -t 1 ]]; then
+  TTY="-T"
+fi
+
+# Run automated tests as part of the Continuous Integration (CI) pipeline.
+function ci:test {
+  lint:dockerfile
+
+  docker compose version
+
+  docker network create traefik_proxy
+
+  cp --no-clobber .env.example .env
+
+  docker compose build --progress plain
+
+  docker compose up --detach
+  docker compose logs
+
+  composer install --quiet --no-progress
+
+  test --testdox
+
+  quality
+}
+
+# Run a command within the php container.
+function cmd {
+  docker compose exec php "${@}"
+}
+
+function coding-standards {
+  cmd phpcs "${@}"
+}
+
+function composer {
+  _exec php composer "${@}"
+}
+
+function drush {
+  _exec php drush "${@}"
+}
+
+function git-hooks:off {
+  git config --unset core.hooksPath
+}
+
+function git-hooks:on {
+  git config core.hooksPath .githooks
+}
 
 # Display a list of all available commands.
 function help {
@@ -14,10 +68,67 @@ function help {
   printf "\nExtended help:\n  Each task has comments for general usage\n"
 }
 
-# Run PHPUnit tests.
-function test {
-  paratest --group lessons "${@}"
+# Install Drupal.
+function install {
+  drush site:install -y "${@}"
 }
 
+function lint:dockerfile {
+  docker container run --rm -i \
+    hadolint/hadolint hadolint --ignore DL3008 --ignore DL3059 -t style "${@}" - < Dockerfile
+}
+
+function quality {
+  coding-standards
+  static-analysis
+}
+
+function start {
+  cp -v --no-clobber .env.example .env || true
+
+  docker compose up -d
+}
+
+function static-analysis {
+  cmd phpstan --memory-limit=-1 --no-progress "${@}"
+}
+
+function stop {
+  docker compose down
+}
+
+function test {
+  _exec php phpunit --colors=always "${@}"
+}
+
+function test:commit {
+  test --testdox --testsuite functional
+  test --testdox --testsuite kernel
+  test --testdox --testsuite unit
+
+  quality
+}
+
+function _exec {
+  docker compose exec ${TTY} "${@}"
+}
+
+function _run {
+  local service="${1}"
+  local command="${2}"
+
+  docker compose run \
+    --entrypoint "${command}" \
+    --no-deps \
+    --rm \
+    ${TTY} \
+    "${service}" "${@}"
+}
+
+# Include any local tasks.
+[[ -e run.local ]] && source run.local
+
 TIMEFORMAT=$'\nTask completed in %3lR'
 time "${@:-help}"
+
+# vim: ft=bash
diff --git a/run.local b/run.local
new file mode 100755
index 0000000..d9a6948
--- /dev/null
+++ b/run.local
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+function start {
+  php -S 0.0.0.0:9000 -t web
+}
+
+function test {
+  phpunit --colors=always "${@}"
+}
+
+# vim: ft=bash