Add Docker configuration for local setup

.gitignore

@@ -1,6 +1,7 @@
 /.phpunit.result.cache
 /.php-cs-fixer.cache
 /.php-cs-fixer.php
+/.idea
 /composer.lock
 /phpunit.xml
 /vendor/

CONTRIBUTING.md

@@ -45,3 +45,32 @@ Unit tests:
 ```bash
 composer test:unit
 ```
+
+## Docker Setup
+
+Clone your fork, then install the dev dependencies:
+```bash
+make composer ARGS="install"
+```
+## Lint
+
+Lint your code:
+```bash
+make lint
+```
+## Tests
+
+Run all tests:
+```bash
+make test
+```
+
+Check types:
+```bash
+make test-types
+```
+
+Unit tests:
+```bash
+make test-unit
+```

Makefile

@@ -0,0 +1,33 @@
+# Well documented Makefiles
+DEFAULT_GOAL := help
+help:
+	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z0-9_-]+:.*?##/ { printf "  \033[36m%-40s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
+
+##@ [Docker]
+start: ## Spin up the container
+	docker-compose up -d
+
+stop: ## Shut down the containers
+	docker-compose down
+
+build: ## Build all docker images
+	docker-compose build
+
+##@ [Application]
+composer: ## Run composer commands. Specify the command e.g. via "make composer ARGS="install|update|require <dependency>"
+	docker-compose run --rm app composer $(ARGS)
+
+lint: ## Run the Linter
+	docker-compose run --rm app ./vendor/bin/pint -v
+
+test-lint: ## Run the Linter Test
+	docker-compose run --rm app ./vendor/bin/pint --test -v
+
+test-types: ## Run the PHPStan analysis
+	docker-compose run --rm app ./vendor/bin/phpstan analyse --ansi
+
+test-unit: ## Run the Pest Test Suite
+	docker-compose run --rm app ./vendor/bin/pest --colors=always
+
+test: ## Run the tests. Apply arguments via make test ARGS="--init"
+	make test-lint && make test-types && make test-unit

docker-compose.yml

@@ -0,0 +1,13 @@
+version: '3'
+
+services:
+  app:
+    image: termwind-docker
+    container_name: termwind-docker
+    stdin_open: true
+    tty: true
+    build:
+      context: .
+      dockerfile: docker/Dockerfile
+    volumes:
+      - .:/usr/src/app

docker/Dockerfile

@@ -0,0 +1,11 @@
+FROM php:8.2-cli-alpine
+
+# INSTALL AND UPDATE COMPOSER
+COPY --from=composer /usr/bin/composer /usr/bin/composer
+RUN composer self-update
+
+WORKDIR /usr/src/app
+COPY . .
+
+# INSTALL YOUR DEPENDENCIES
+RUN composer install --prefer-dist