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Quickstart

Go from installation to a reviewed Nebula Agent edit in about five minutes.

Download and install#

Download Nebula Writer for your operating system, run the installer, and open the app. Current builds support Windows 10 or later, Apple silicon Macs running macOS 11 or later, and Linux x64.

The home screen gives you three useful starting points:

  • New Project creates a folder and opens it as a workspace.
  • Open Folder uses a folder you already have.
  • Recent projects reopens work without finding the folder again.

You can also add reference files to a new agent request from the home-screen prompt composer.

Open a project#

Choose Open Folder and select a folder that contains the files for one piece of work. A project can mix drafts, data, sources, and deliverables:

Example
Quarterly review/
  brief.md
  customer-notes.pdf
  metrics.xlsx
  review-deck.pptx

The files remain standard files. Local projects stay in the folder you chose; files placed in a shared folder also synchronize through Nebula Writer's cloud collaboration service.

Nebula Writer workspace with a project tree, open document, tabs, and the agent panel

Create or open a document#

Select a file in the project tree to open it in a tab. Nebula Writer chooses the editor from the file type. You can open Markdown, LaTeX, DOCX, PPTX, XLSX, XLS, PDF, and text files.

To create a file, use New in the project sidebar or press Cmd/Ctrl + N. Give it a useful name and extension, such as project-brief.md or meeting-notes.txt.

Save with Cmd/Ctrl + S. Open tabs are restored when you return to the project.

Ask the agent for a small change#

Press Cmd/Ctrl + L to open the agent. With the draft active, try a bounded request:

Prompt
Rewrite the opening paragraph so the decision and deadline are clear. Keep every number unchanged, and show me the proposed edit before I accept it.

The active document is available as context. For work that depends on another file, add it with @ or attach it explicitly:

Prompt
Compare this brief with @metrics.xlsx. Flag numbers that do not match, but do not edit either file yet.

The agent responds in the panel and can show plans, questions, tool activity, and modified files while it works. The exact activity depends on the task; a short rewrite should stay short.

Review before you save#

When a change is pending:

  1. Read the agent's response.
  2. Inspect the highlighted text, cells, slides, or operation summary in the editor.
  3. Accept only the changes you have checked, or discard the review session.
  4. Save the document and inspect the final layout.

DOCX and PPTX edits may be written to a backed-up working file during review. In those sessions, Discard All restores the backup rather than declining an unapplied preview.

Learn the workspace#