TOOLS / LOCAL-FIRST

Tools that stay on your machine.

A Chrome side panel for your own AI models, coding agents, and PDFs, and a private place to keep study notes. No hosted accounts and no cloud sync.

CHROME EXTENSION / EARLY PREVIEW v0.1.0

Nexus Assistant

Bring your own accounts and API keys. The companion runs on your computer, and cloud providers may charge for their own services.

Requires Chrome and Node.js 22.9+. Not a Chrome Web Store release.

  • Chat with your own modelsLM Studio, Ollama, OpenAI, Gemini, or DeepSeek, routed through a companion on your computer.
  • Coding tasksUse your installed Codex, or opt in to Cline. PowerShell stays off unless you start the companion with --terminal.
  • PDF marksDraw or type a visible mark and place it on a page. Works without the companion; the file never leaves your device.
  • Experimental browser agentClicks and types in the active tab after you start a task, up to eight actions, stopping on cross-origin navigation.

SET UP IN FOUR STEPS

Install the preview

  1. Download and extract

    Extract the ZIP into a folder you control. You need Chrome and Node.js 22.9 or later.

  2. Load the extension

    Open chrome://extensions, turn on Developer mode, choose Load unpacked, and select the extension folder. Copy its extension ID.

  3. Start the companion

    In the companion folder run npm ci, then npm start with your extension ID and workspace path.

  4. Connect

    Open the side panel and enter the temporary token shown in your terminal.

The ZIP includes a README with the exact commands, provider setup, and the encrypted key vault. Keep the token private: it grants access to your chosen workspace.

BEFORE YOU USE IT

What to know

Privacy

Prompts and any page text you attach go to the provider you select, under that provider's retention policy. Never paste credentials into chat or a repository.

Agents can act

Cline can change files and run commands with your account permissions. The browser agent can misclick or be misled by page content; avoid sensitive accounts.

PDF marks

The mark is visible only. It is not a cryptographic signature or identity verification, and it may invalidate an existing digital signature. Check the output.

Not included

Sign-in, cloud sync, signing requests, rotated or cropped PDF pages, and hosted account management.

See the site privacy notice. The companion is loopback-only and should never be exposed publicly.

YOUR WORKSPACE

Make room for your ideas.

Reflect, prepare for Bible study, and keep what you discover. Notes are stored only in this browser; download a copy to keep them.

Notes stay in this browser until you download or clear them. Anyone using this browser profile may be able to read them. Avoid passwords, API keys, or sensitive information.