Projects
VS Code single-folder workspaces: a root folder plus its own saved session (open files, layout, folds), shown as a filterable file tree.
Projects are VS Code-style single-folder workspaces: a root folder plus its own saved session, open files (with carets and pins), the active tab, folds, and tool-window layout.
Open one with C-x C-p, switch with C-x p, and close to return to the global session. The Project tool window shows the tree with keyboard navigation and a filter that runs a bounded project-wide filename search. Bookmarks and notes are scoped per project. Off by default. Enable it in Settings.