Fold starts on the welcome page — the one place a folder is picked, added or cloned. Choose a project folder (⌘O) or clone a repository (⌘⇧C). The folder becomes a workspace: one project, one repo, one folder.
A workspace opens with one terminal session already running in its root.
You can also start from Finder: Open With → Fold on any file or folder (or drop it on Fold's Dock icon, or run open -a Fold <path>). A folder opens as a workspace. A file opens in the workspace that holds it — or, if none does, Fold opens its git project (or its folder) and the file in it.
Right-click a folder in Finder and choose Open in Fold (under Quick Actions or Services) to open it as a workspace.
From a terminal, type fold . to open the folder you are in, or fold <path> to open a folder or a file the same way. Put the command on your PATH with Install ‘fold’ Command… in the Fold menu (or the command palette); macOS may ask for your password. Installed with Homebrew, it is already there. macOS has a fold of its own that wraps text — Fold's steps aside for it whenever text is piped in or out or an option comes first, so scripts keep working; typed at a prompt, /usr/bin/fold notes.txt still wraps a file.
Everything lives in one see-through window. The stage is one grid of panes — terminals, documents and tools alike.
| Part | What it is |
|---|---|
| The band | The title bar. Traffic lights, then the workspace segment (the open project, in its tint), then one chip per session, then the session-scope toggle. Everything window-wide lives here, and a drag on any of its ground moves the window. |
| The stage | Everything under the band, down to the foot lane. One split grid of panes: terminals, the files, diffs and notes you open beside them, and the Files, Git and Notes tools. Every pane drags by its header, and every gutter between them drags. |
| The dock | The glass capsule at the bottom-right: Files, Git and Notes, then a tile per open document, then your account mark, the gear, the shortcuts key and Fold's own mark. A tool opens as a tool pane in the grid — along the right edge the first time, then where you last closed it — and stays with its session until you close it. |
| The instruments | The capsule at the bottom-left: git's facts for the focused workspace — the branch, the worktree, the changes, the sync state, and the shelf while it has rows — then, when claude is installed, Claude usage. Each fact opens its menu right above itself. |
Every shell runs in a small helper that outlives Fold, so quitting kills nothing. On the next launch the layout comes back — every workspace that was open, its sessions, names, splits and working directories — and Fold reattaches to every shell still running, scrollback and all. A shell whose process is gone comes back as a fresh shell, said so. Fold never pretends a dead process is alive, and never types anything into a restored shell.
Closing a session asks: Shelve keeps it running out of sight, listed on the shelf in the instruments; Kill ends it. See Sessions.