How to list tags across multi-instance docs in one place?

[eelmafia]

I'm working on a project that uses multiple doc instances, so I have /docs/, /examples/ and /community/. I've noticed that if I set identical tags on a post in /docs and /examples won't be shown together. Tags created for content in /docs will only encompass /docs and vice versa.

Is it possible to have the tags be global so that if tagX is shared between multiple docs then clicking on said tag would display links to all sections of the site that have that tag?

[slorber]

Unfortunately, we don't have any easy way to achieve that, all plugins are "sandboxed" currently.

In the future, React Server Components might give you the flexibility to pick/merge/render multiple plugin data the way you want, but we don't support that yet (track #9089)

[eelmafia]

That's what I assumed. What would be the "hard" way to achieve that?

[slorber]

The hard way would be to extend existing plugins (#4138), or fork them to enhance them the way you want.

Alternatively, you can create a plugin that gets access to all the plugins contentLoaded data (containing all plugins tags) and implement your own tags merge logic and create a custom tags page from the merged data. See also #10574 (comment)