Obsidian, and Mind Maps, are a great way to structure learning, and create a personal knowledgebase.
Combined with GPT4, and a carefully constructed prompt, it's simple to generate an initial learning path, with links for subtopics that can be used to automatically create a new markdown document when clicked, and to then add personally researched information, tips and links to existing content.
Obisidan:
https://obsidian.md/
Markmind plugin:
https://lnkd.in/dyyV7Kp9