First commit

.editorconfig

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+# This is the top-most .editorconfig file; do not search in parent directories.
+root = true
+
+# All files.
+[*]
+end_of_line = LF
+indent_style = space
+indent_size = 4
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[Makefile]
+indent_style = tab

.gitignore

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+.DS_Store
+.vscode
+/vendor
+composer.lock
+.phpunit.result.cache
+/var

Containerfile

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+FROM php:8.1-alpine
+
+WORKDIR /code
+COPY --from=composer:2 /usr/bin/composer /usr/bin/composer
+COPY ./ /code
+
+RUN composer install

Makefile

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+PHP = docker compose run php
+
+.PHONY: composer_install composer_update static_analysis tests
+
+composer_install:
+	@$(PHP) composer install
+
+composer_update:
+	@$(PHP) composer update
+
+static_analysis:
+	@$(PHP) vendor/bin/psalm
+
+tests:
+	@$(PHP) rm -rf var/cache
+	@$(PHP) vendor/bin/phpunit

compose.yml

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+services:
+    php:
+        build:
+            context: .
+            dockerfile: Containerfile
+        volumes:
+            - ./:/code