Ask HN: How Do You Manage and Retrieve Knowledge from What You Read?

Hi,

I'm curious about how you all manage the knowledge you acquire from reading various sources, such as online articles, books, and other materials. Often, I find myself recalling something insightful I read months ago but struggle to locate the exact source or details.

What strategies or tools do you use to organize and retrieve information efficiently? Do you rely on note-taking apps, bookmarking systems, or something else entirely? How do you ensure that valuable insights are easily accessible when you need them?

Looking forward to hearing your approaches and any recommendations you might have!