I was a Ghostty user but kept running into the same problem: too many tabs, no way to organize them. Ghostty doesn't have tab groups or a plugin system, so I built Calyx using libghostty as the rendering engine.
The idea is simple — keep Ghostty's speed, but add the workflow features I was missing:
- Tab Groups — color-coded, collapsible groups to organize tabs by project
- Command Palette (Cmd+Shift+P) — search and run any action
- Session Persistence — tabs, splits, and working directories survive restarts
- Notification Badges — OSC 9/99/777 notifications with per-tab badge counts
- Built-in Browser — open docs right next to your terminal
- Terminal Search (Cmd+F) — find text in terminal output
- Git Diff View — inline source control diffs
- IPC MCP Server — programmatic control from tools like Claude Code (Demo: https://youtu.be/LHY-NJEqBTg)
- Scrollbar, cursor-click-to-move, Liquid Glass UI throughout
I was a Ghostty user but kept running into the same problem: too many tabs, no way to organize them. Ghostty doesn't have tab groups or a plugin system, so I built Calyx using libghostty as the rendering engine.
The idea is simple — keep Ghostty's speed, but add the workflow features I was missing:
Happy to answer any questions.