Ah, the cards are a good idea. If I could ask about your experiences to get a better idea of a potential solution:

• Is searching through lemmy/hexbear preferable due to the interface, or how the information is presented?
• Did you go to hexbear first due to your familiarity with it or because it was what first came to mind?
• Do you usually look for this info on your phone?
• Is some info good but you'd have to reformat it so you don't end up using it?
• Do you ever put stuff that's good in your own words?
• Do you find the formatting (headings, subheadings, bold, etc.) to be helpful in navigating and finding the stuff you are looking for when you have like a huge effortpost?