Hi,

I need to store datas in a file, with add, remove, rotation (3 records 
max) features.
The datas are username, and the score number.

I heard about YAML. I looked here : 
https://ruby-doc.org/stdlib-1.9.3/libdoc/yaml/rdoc/YAML.html
But not too documented.

Does someone can explain me how it works ?
How i can implement that ?

Thank you very much.

Regards,

/Nathan

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