# User Guide Trilium is an open-source solution for note-taking and organizing a personal knowledge base. Use it locally on your desktop, or sync it with your self-hosted server to keep your notes everywhere you go. > [!TIP] > The same documentation can be accessed locally from within the Trilium Notes application by pressing F1. ## Getting started 1. See Quick Start. 2. Go through Basic Concepts and Features. 3. Understand Notes. 4. Browse through Collections. ## Quick links * Desktop Installation * Server Installation * Frontend API or Backend API * [ETAPI reference](User%20Guide/Advanced%20Usage/ETAPI%20\(REST%20API\)/API%20Reference.dat) ## External links * The [Trilium Notes website](https://triliumnotes.org/), for a quick presentation of the application. * [Developer Guide](https://docs.triliumnotes.org/developer-guide/), to understand the architecture and processes behind the development of Trilium Notes. * [GitHub Repository (TriliumNext/Trilium)](https://github.com/TriliumNext/Trilium/)