I almost always get the "gist" of a book just by reading it (and even when I don't, I can quickly reference the Wikipedia page on it), so I'm not very concerned

I almost always get the "gist" of a book just by reading it (and even when I don't, I can quickly reference the Wikipedia page on it), so I'm not very concerned with outlining or summarizing works in their entirety. Instead what I try to capture with book notes are memorable or densely insightful passages. I use Notion to store these notes, since Notion's database feature (similar to Airtable but more powerful) makes it easy to connect useful passages to other metadata for quick reference later on. For example, I have a database called "Quotes" where I create a new record for each insightful passage I come across. Each quote record is connected to records from the following other databases: Books, Authors, Topics. It's not very lightweight, but the payoff is immense. I routinely think, "Damn, what was that Paul Virilio quote about second-order effects again?" And I'll quickly open my Authors database on <Paul Virilio> or my Topics database on <second-order effects> and find my quote: "When you invent the ship, you also invent the shipwreck."