composer.json

{
    "require": {
        "php": "^7.4",
        "woohoolabs/larva": "^0.7.0",
        "woohoolabs/worm": "^0.7.0"
    },
    "config": {
        "platform": {
            "php": "7.4"
        }
    }
}

docker-compose.yml

php:
    image: php:7.4.0RC1-fpm-alpine3.10
    volumes:
        - .:/code
    working_dir: "/code"
    command: /bin/sh -c "docker-php-ext-install opcache && cp ./php.ini /usr/local/etc/php/conf.d/zz-custom-php.ini && php -v"

php.ini

[PHP]
display_startup_errors=1
error_reporting=E_ALL

[OPCACHE]
zend-extension=opcache
opcache.enable=1
opcache.enable_cli=1
opcache.preload=/code/preload.php

preload.php

<?php

opcache_compile_file('vendor/woohoolabs/worm/src/Worm.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Connection/ConnectionInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Driver/DriverInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Select/SelectQueryInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Condition/ConditionsInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Condition/ConditionBuilderInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Select/SelectQueryBuilderInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/QueryBuilderInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Driver/TranslatedQuerySegment.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Insert/InsertQueryInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Update/UpdateQueryInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Delete/DeleteQueryInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Truncate/TruncateQueryInterface.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Execution/IdentityMap.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Model/ModelInterface.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Model/Relationship/RelationshipInterface.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Execution/Persister.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Execution/QueryExecutor.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Insert/InsertQueryBuilderInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/DmlCommandBuilderInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Update/UpdateQueryBuilderInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Delete/DeleteQueryBuilderInterface.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Truncate/TruncateQueryBuilderInterface.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Query/SelectQueryBuilder.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Select/SelectQueryBuilder.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Query/ConditionBuilder.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Condition/ConditionBuilder.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Query/InsertQueryBuilder.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Insert/InsertQueryBuilder.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Query/UpdateQueryBuilder.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Update/UpdateQueryBuilder.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Query/DeleteQueryBuilder.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Delete/DeleteQueryBuilder.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Query/TruncateQueryBuilder.php');
opcache_compile_file('vendor/woohoolabs/larva/src/Query/Truncate/TruncateQueryBuilder.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Model/AbstractModel.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Model/Relationship/RelationshipBuilderInterface.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Model/Relationship/HasManyRelationship.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Model/Relationship/HasOneRelationship.php');

// Preloading works if I delete the last 4 lines from the preload file (although there are some warnings
// because HasManyRelationhip and HasOneRelationship are unlinked)
opcache_compile_file('vendor/woohoolabs/worm/src/Model/Relationship/AbstractRelationship.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Model/Relationship/BelongsToOneRelationship.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Model/Relationship/HasManyThroughRelationship.php');
opcache_compile_file('vendor/woohoolabs/worm/src/Model/Relationship/BelongsToManyRelationship.php');