Here's how to save a Reddit post to Gemini Notebook, formerly NotebookLM, with the Kortex extension. Open the post itself, not the subreddit list. Kortex adds a NotebookLM button to the post's action row.
Click it. Choose Create New Notebook for a new notebook, or Use Existing Notebook to add the post to research you already have. Your notebooks show in a list with a search box.
Kortex marks the best match as Suggested. If the notebook already has this post, Kortex warns you. Cancel, or add it anyway.
Open the notebook. The post is a source with its title, author and text. Kortex doesn't save the comments, so ask about the post itself.
To import more posts, repeat the same steps on each one. Find the full steps and fixes on the Kortex website.
