At the moment GN allows for linking text to other pages & websites but I think it could be expanded greatly by including handwriting and other elements (shapes & images etc) to be linked.

If you are only using handwriting in your notes then it's messy if you have to include text just to add a link.

GN already recognises handwriting and can select individual words, so it seems a short step to adding a link function to it.

Please also implement auto back linking within documents too as that would make any sort of linking super useful!