Here's how to have your Kortex prompts, tags, notes and templates on every computer you use. On your first computer, open the Kortex side panel and sign in. Sync works only when you're signed in.
It goes through your Kortex account. On the second computer, add the Kortex extension from the Chrome Web Store. Open the side panel there, and sign in with the account you used on the first computer.
A different account has a different library. Open the Prompts tab in the side panel, or the Prompts page in the Kortex Workspace. The prompts you made on the first computer should show up.
Then open the tag views and Notebook Templates in the Workspace. Check for the tags and templates you made. Sync covers Kortex's organizing data.
Your notebooks and sources stay in Gemini Notebook, formerly NotebookLM, in your Google account. A few things stay on the computer that made them: prompt versions, Recently deleted, and your use history. Find the full steps and fixes on the Kortex website.