When I should use repository pattern in laravel?

I'm reading about the Laravel Best practices to reduce the code duplication as much as I can, then I read about the repository pattern and I'm following this technique but when I was exploring the https://github.com/akaunting/akaunting open source software for accounting, I saw there is nothing related to respository pattern. I really got confused, so when should I use the repository pattern? if it is helpful when why the good projects not use that pattern? or if there is something better than repository pattern?

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