... CoWork - development, content creation GitHub - obvious Obsidian - documenting build process, ADR's, and long term memory ChatGPT / Perplexity / Gemini - As think tank - refining ideas Workflowy - insanely useful repository for nested info Comment from Gil Levy(@gil_levy): For building Qualtix, my 5 are: 1. ChatGPT - product thinking, copy, SEO structure, and debugging direction 2. VS