Is there a convention where to put resource files inside a package?

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I created a package and I would like to read and write to files (i.e. .bag, .yml, etc files).

Is there a convention where to put these files? Should the resource files be put under the modules specific to the specific computations, or a package should just have one folder dedicated to all resources?

This may depend, I fear, on the type of resource, i.e. if it's a resource that should be accessed by all nodes (and computations, scripts, etc, in general) or just by a specific node, but I would like to hear your wise suggestions.