Zasper 2.2.0

Zasper 2.2.0 makes the whole IDE usable from the keyboard alone and with a screen reader. It can also be served under a path, as a hub serves each person’s server, and a kernel output’s scripts now run in a sandbox rather than in the page. Antigravity CLI takes Gemini CLI’s place in the agent panel.

brew upgrade zasper                   # Homebrew
sudo snap refresh zasper              # Snap
conda update zasper -c conda-forge    # conda

Prebuilt binaries are on the Downloads page.

The Keyboard and Screen Readers

• F6 moves between the window’s parts: the editor, the panel under it, the agent panel, the activity bar and the sidebar. It is the way out of a terminal or a code editor, which keep Tab for themselves, and each part keeps the place the focus last had in it.
• Every menu, dialog, tab strip and tree has its keyboard. Menus take arrows, Home, End and a first letter. Dialogs keep the focus inside and hand it back when they close. The tab strip is a tab list the arrows walk along, and Delete closes the focused tab.
• A screen reader is told what is going on: each cell’s name and run, when a cell finishes or fails, what the kernel is doing, saves and an agent’s replies. The window’s parts are landmarks.
• The terminal has a screen reader mode, in Settings.
• One focus ring, visible on every surface in every theme, and selection and state that stay visible under Windows’ contrast themes.

Accessibility has the whole list. If something cannot be reached from the keyboard, please open an issue.

Behind a Hub

--base-url serves Zasper under a path, such as https://example.com/zasper/ or a hub’s /user/<name>/. Pages, the API, WebSockets and the session cookie all stay under it, and nothing outside it is served. Deploying on Cloud shows the proxy setup.

Outputs

• An output’s scripts run in a sandboxed frame, with no access to Zasper’s page, its cookies or the server’s API, so an output cannot act as you. Output with nothing to run is drawn in the page as before, and charts’ own menus can still download and open windows.
• Bokeh’s output_notebook() and show() draw in the notebook.

And

• Antigravity CLI in the agent panel, in place of Gemini CLI, which no longer serves personal Google accounts. Gemini CLI still starts by its command line.
• Reorder tabs by dragging. The strip scrolls with a mouse wheel and keeps the front tab in view.
• SQL connections are added, edited and removed in the Data panel. A connection string’s password goes to the keychain, never into connections.json.
• A Python kernel is reached through Unix sockets on macOS and Linux, so other accounts on the machine can no longer read its traffic.

Upgrading from 2.1.0

Nothing needs doing for most people. A script in an HTML output that reached into Zasper’s page will no longer find it, and an agent set up as Gemini CLI is now started by its command line. Installation explains both, and the changelog has the full list.