DokuWiki already automatically links camel-cased words. It will find a page with the same name, and turn your text into a link. The Autolink plugins take that a step further, allowing you to add links to specific pieces of text. For example, you could make it so that the word “Things” will link to mywiki:things, no matter where it’s found on your wiki.
You can achieve effectively the same thing in tiddlywiki, where they are talking about Autolink plugins, we would be talking about wikitext and macros.
You could make a macro to emulate this behaviour.
Allowing you to add links to specific pieces of text the easiest way is to turn this piece into a tiddler,
using the excise tool in the editor makes it a seperate tiddler and its title is the reference to it.
In the my wiki tiddler you may excise something into the things tiddler, you could call it “things” or “mywiki:things” and reference it with [[mywiki:things]]
However there are so many ways to tackle this with TiddlyWiki out of the box