A plugin with a blacklist/whitelist of folders or tags (or maybe just a search query?) that, when making links, would only allow files matching the conditions.
Multiple presets for switching between environments would be great. Tying them to workspaces would be fantastic.
I’m trying to integrate multiple related vaults into one, but they tend to have a lot of parallel files - how-tos, templates with the same names, etc. The scale of the vaults is such that I can’t think of another practical solution.