I Built My Second Brain in a Day (malvik.de)

A tech enthusiast recently shared their experience of creating a "second brain" using AI to enhance note-taking, inspired by a YouTube video on the limitations of human memory. The user built the system in a single day using Slack as the interface, where notes are categorized and stored in a Notion table according to the PARA method (Projects, Areas, Resources, Archives). Utilizing the Claude SDK, the notes receive categorization feedback, including a confidence level, while notes that lack clear categorization are sent to an "uncategorized" bucket. This project is significant for the AI/ML community as it demonstrates the practical application of AI tools in personal productivity and knowledge management. By avoiding complex workflow engines and leveraging Claude Code's integration capabilities with platforms like Vercel, Slack, and Notion, the creator streamlined the development process. The solution allows for future automation, such as creating GitHub issues and Outlook invitations, showcasing how AI can transform everyday tasks into efficient workflows. The overall message highlights the importance of prototyping and iterating quickly with the right tools, encouraging others to embrace a hands-on approach to innovation.