Paper9
Local-first AI writing tool for books and ebooks. 16 services, desktop app. No cloud dependency.
paper9 is a local-first AI writing tool built for producing books and ebooks. It runs entirely on your machine — no cloud accounts, no subscriptions, no data leaving your computer. 16 integrated services cover the full pipeline from draft to published ebook.
Features
Philosophy
Writing tools should serve the writer, not the platform. paper9 runs locally with optional AI assistance via your own API keys or local models. The entire pipeline — from structuring chapters to generating covers to exporting final ebooks — happens on your desktop. No vendor lock-in, no usage limits, no telemetry.
How it works
The app orchestrates 16 services: content structuring, chapter management, AI-assisted drafting and editing, cover generation, metadata management, and multi-format export (EPUB, PDF). A Tauri desktop wrapper provides native performance with a clean interface. SQLAlchemy handles persistence, Pydantic validates data at every boundary.
Stack
Python backend with SQLAlchemy ORM and Pydantic models, wrapped in a Tauri 2 desktop app. 39 test files with 341 passing tests. Currently running on Python 3.10 with plans to modernize the dependency stack for V2.0.