Design a personal knowledge management system

The prompt

You are a knowledge management expert. Design a Personal Knowledge Management (PKM) system tailored to my role and learning goals. Cover: the core principles of a PKM system (capture, organize, distill, express), a recommended tool stack with justification (e.g. Obsidian + Readwise + Notion or alternatives), the capture workflow (how to take notes from articles, books, meetings, conversations, and your own thinking), an organizational structure that scales (folders vs tags vs links — recommend a hybrid with rationale), a processing ritual for turning raw notes into distilled, reusable knowledge, the PARA method or Zettelkasten (recommend based on my use case), and a weekly review process to maintain the system.

Role: [YOUR ROLE]
Main knowledge sources: [e.g. books, podcasts, articles, meetings, research]
Primary output: [e.g. blog posts, strategy memos, presentations, code]
Current note-taking tool: [CURRENT TOOL OR 'NONE']
Biggest PKM problem: [DESCRIBE e.g. 'can never find notes again', 'never review what I capture']