Searchwikis plugin uses index (dataTiddler) to search multiple external Tiddlywikis.
https://kookma.github.io/TW-Searchwikis/
It has two parts
- An indexer, to build an index of all tiddlers in an external wiki
- A search tool to search indexes and display a link to a tiddler found in an external wiki
Then one master wiki can host many index tiddlers and lets to search several external wikis through index tiddlers.
Searchwikis enable to have a central wiki and search all other wikis from one place.