Why Every Developer Needs a Second Brain

Your notes belong to you... not a SaaS company's database. Obsidian is a markdown-native infinitely extensible tool where you can build what developer's dub a "second brain". Contents Free + private Password protection + encryption Turn your notes into a database Code Funsies Custom CSS The bottom line Supercharge with Claude + MCP Links to get started Free, local, and actually yours Obsidian is free for personal use. Your vault is just a folder of .md files on your machine. There's no proprieta