👋 I'm ziyi. Every dev with multiple Git accounts knows this pain: git config --global, ssh-add, editing ~/.ssh/config. Daily. So I built Gum – like nvm for Git. One command (gum use work) switches both identity and SSH keys. ✨ Key features: • Auto-reads & manages your ~/.ssh/config • One-line install: macOS, Linux, WSL (Homebrew, apt, Scoop) • Interactive UI (arrow keys / vim) Before: 5 manual steps. After: gum use work. Open source. Free. Built for devs who hate context switching.