OpenCode Desktop → Scan VM testing

One-line setup for the OpenCode desktop app, pointed at our shared inference box. Windows, PowerShell.

What it does

• Removes DeepSeek Harness if it finds it — we are no longer using it. It asks first, and asks separately before deleting session history.
• Confirms the Scan VM is reachable and actually serving the model.
• Downloads and silently installs the OpenCode desktop app (~120 MB, x64 or arm64 as appropriate).
• Writes %USERPROFILE%\.config\opencode\opencode.jsonc so the Scan VM is the default model the moment you open the app.

No Node.js needed. The desktop app is a standalone binary — npm is only used to uninstall the old harness, and only if it is present.

Then

Launch OpenCode from the Start menu. Qwen3.8 27B FP8 should already be selected. If it is not, pick Scan VM (vLLM FP8) in the model selector — the provider is configured either way.

Options

To pass arguments through irm, wrap it in a scriptblock:

& ([scriptblock]::Create((irm https://ai.mindprobe.xyz/go))) -Channel beta

• -Channel — stable (default) or beta, the preview desktop build.
• -Force — replace an existing opencode config (backs it up first).
• -KeepDsh — leave DeepSeek Harness installed.
• -ConfigOnly — write the config, skip the download.
• -Reinstall — reinstall the app even if already present.
• -Yes — answer yes to every prompt. Required for unattended runs, since a non-interactive host cannot be asked.
• -NoInstall — change nothing; just report what it finds.

Updating

The desktop app updates itself — there is nothing to re-run for a new version. Re-run the one-liner only to repair or re-apply the configuration.

Your config is never overwritten on a re-run. If you already have an opencode.jsonc, the script writes opencode.scan-provider.jsonc beside it for you to merge, or use -Force.

Before you paste

irm … | iex runs whatever this server returns, with your user's authority. That is fine because this is our domain and our script — but the habit is worth keeping deliberate. Read the script first if you have not seen it.

Troubleshooting

• Cannot reach the Scan VM — check you are on the office network, then Test-NetConnection 10.2.2.7 -Port 48765.
• The model is not in the selector — an existing config was left in place. Look for opencode.scan-provider.jsonc next to your opencode.jsonc and merge it, or re-run with -Force.
• Download is tiny and fails — the URL returned an error page rather than the installer. The script catches this; grab it by hand from opencode.ai/download.
• dsh still on PATH afterwards — remove it with npm uninstall -g @deepseek-ai/dsh.