Install

macOS 12 or newer, one signed and notarized .dmg, and a download link that only exists once your trial has started. Windows and Linux are in development and there is nothing to download.

What you need

The download is gated behind the trial

There is no anonymous download link. download.php requires an order parameter, and refuses with HTTP 403 when it is missing or does not check out. You get one by starting the trial.

1. Start the 7-day trial on the product page. It goes to Stripe Checkout; the card is required and the subscription converts on day 7 unless you cancel.
2. Stripe returns you to a personal thanks page carrying your order id. That page holds both the download button and your licence key.
3. That button is macOS. For any other platform, or to see every build at once, open the download page with the same order on the end of the URL — it lists exactly the builds that are on the server right now.
4. Download DeckSpace.dmg. The filename is deliberately unversioned so the same link keeps working across releases — the version lives in the app, not in the URL.

The server re-checks the order with Stripe on every download. It authorizes when the checkout was one of ours (a subscription), and either the invoice is paid or the subscription is trialing, active or past_due. A trial checkout is not “paid” — nothing has been charged yet — which is exactly why the trial-aware check exists.

Installing the app

1. Open the .dmg and drag DeckSpace to Applications.
2. Open it from Applications.
3. The first launch opens the main window. On later launches started by the login item it stays in the menu bar instead.

The Mac build is signed with a Developer ID Application certificate under the hardened runtime, the app is notarized during the build, and the disk image is submitted and stapled separately. A correctly stapled disk image opens with no Gatekeeper warning.

Activating your licence

Installing does not unlock anything. DeckSpace is subscription-only and the gate is around the whole app, not individual features: with no valid licence and activation for this Mac, you get the activation screen and nothing else.

1. Open Settings → Plan & license.
2. Paste the key from your thanks page or your email.
3. Click Activate.

If the trial ends unpaid or you cancel, the app locks at the end of the paid period. Your data stays on disk untouched; renewing with the same key restores access.

What macOS will ask for

Nothing is requested at install time. Each permission is asked for the first time you use the feature that needs it, and every one of them is optional — panes, agents, the board and the review gate need none of them.

What DeckSpace does not install

It ships no model and no agent CLI. It detects the ones already on your login shell’s PATH and runs them in panes. If you have installed none, the app opens and every agent shows as unavailable.

Detection runs from Settings → AI providers, and only when you click Scan — never automatically at startup. The scan checks the known command names on your PATH and asks each one for its version. It installs nothing, changes nothing, and sends nothing off the machine.

Eleven CLIs are recognised (a twelfth entry, gemini, is kept only so old workspaces still resolve — that CLI was retired on 2026-06-18 and launches are sent to Antigravity instead). The app shows a copyable install command for each one it cannot find:

Where DeckSpace keeps things

Everything the app owns is under one folder, ~/Library/Application Support/ai.opxera.deckspace/:

Two things land in your repositories rather than here, and both are visible files you can read and delete: .opxmemory/ (that workspace’s memory notes, plain markdown) and .deckspace/ (skills and providers you chose to save with the repo). To uninstall, quit the app, drag it to the Trash, and delete the support folder above.

Windows and Linux

Windows: the installer is not code-signed yet, and Windows will say so. You will see a blue full-screen panel reading “Windows protected your PC”. Click More info, then Run anyway. That screen is SmartScreen reporting that the file carries no publisher signature — it is not a virus warning and it is not about this particular download. A code-signing certificate is being obtained; until it is in place every Windows build shows this, and we would rather tell you here than have it surprise you. The macOS build is signed and notarized by Apple and shows nothing of the kind.

Every download still goes through the order check — there is no public release link, because a public release link is an ungated download. The installers are served by download.php, which verifies the order first. Up to and including 3.6.0 the Windows and Linux artifacts were built on every tagged release and then discarded, which is why no installer existed for them; from 3.7.0 they are uploaded and served.

Known gaps on those platforms, so the wait is an informed one:

Where the missing pieces are optional, the app runs and explains what is absent in a toast rather than failing quietly. That is the same choice the sandbox makes: it degrades rather than refusing to start, which is convenient and is also why walk-away is not equally safe everywhere.

One Intel binary is left

After it opens

• Your first workspace — point it at a repository and get one agent doing real work.
• Panes and agent CLIs — registering a CLI the roster does not know about.
• Updating — how new versions reach you, and on which platforms they do not.
• Troubleshooting — the install failures we have actually seen.