I’m about to refactor a set of classes/modules to better organize them and having namespaces would help.
The Xojo way for this is putting classes and other modules inside a module and properly set the scope.
In past I found some problems on working with classes organized in this way, but I forgot where.

So I’m looking for suggestions or warning about this.

Such a module has to be embedded into your project, it can’t be an external reference.