Hi TiddlyWiki community!
I'm not sure if there are any Todoist users out there, but if there are, you may be interested in learning that there's a way to integrate the Todoist web-application directly into a tiddler. I personally have it on my dashboard tiddler that shows up when I open the wiki, and find it really useful as an additional tool to stay organized.
Before I get started on how to do this, I'll just note that you do not need todoist premium for this. It works with the free account (which is what I use).
As another quick sidebar, the todoist free account just recently had several previously premium features unlocked, including integration with google calendar, and comments for your tasks.
Here's how to add Todoist to your wiki:
Step 1
Create a tiddler titled TodoistLogin or something to that effect. You will need this to login to todoist once per device. Once you've logged in (per device) it should remain that way in your wiki unless you change the browser you are using.
In the body of that tiddler add this text:
Close the editor, and then login to todoist as you would normally using the web app that shows up.
Step 2
In another tiddler, or the main place you'd like to see the Todoist web app, simply add the following text where you'd like to see the app in the tiddler:
Of course, change the width/ height if you'd like to.
Close the editor.
Step 3
You're done! You should see your tasks show up in the tiddler now. If not try a refresh.
As I said you will need to login on each device that you use the wiki on (though you may not if you already use Todoist in your browser on that machine (I have not tested if that would work).
I use TiddlyDesktop primarily right now, and it works well on that. It should work on any modern browser I think.