To install project

• composer install

• configure database connection in the .env file

• php artisan migrate --seed

My thoughts

In case I would have more time to complete the project, I would bet on:

• Implement CQRS, as it will be a given advantage as we decouple the modules, which are touching each other often. For this type of application seems to be really helpful, and we avoid problems with circular dependencies in the future.
• Implement hexagonal architecture. Now the whole skeleton is done, so it will be a big challenge, but I would consider hex/onion with parts of DDD.
• Audit logs and event sourcing for the system, esp. for duel storing at the infrastructure level
• Pagination for duels history and caching a bit
• Improve the flow of delay stamps as for large scale it cause memory leaks - it is fault of Redis, as every delayed message is being on a new entry.
• Probably I would discuss with the team about repository, as eloquent uses active record pattern and abstraction for data layer can be helpful in terms of separation of concerns, but on the other hand it increases the complexity and time markup over whole engineering process.
• Mutation testing (infection) for testing the tests :)
• Supervisor config and more metrics, retrying failed jobs etc
• For multiple duals at the same time be probably would have to fight against deadlocks caused by transactional logics, so think about isolation level and way of locks management