Claude Tandem runs several Claude accounts side by side on a Mac and hands projects between accounts and Macs
Shown on HN, brew install altsang/tap/claude-tandem adds profiles with their own Claude app and Claude Code sign-ins while sharing skills, settings.json, CLAUDE.md and plugins, plus badged Dock icons to tell them apart. When one account hits its limit, tandem send and tandem receive move a project's files and memory to another account or Mac over iCloud Drive by default, with every file verified (Show HN).
