Phausto is a lightweight, open-source library for live-coding music, enabling sound generation and Digital Signal Processing (DSP) programming. Developed in the Pharo programming language, it incorporates the Faust compiler for robust audio capabilities, using Foreign Function Interface (FFI) calls for seamless integration. Phausto connects with platform-specific audio layers through PortAudio, offering a consistent API across operating systems. Designed for educational settings, it targets users interested in DSP, musicians, and sound artists with limited technical skills. Phausto addresses two main challenges: generating audio in Pharo applications and providing an accessible environment for programming digital musical instruments. It is easy to install and supports the latest Pharo versions, with instructions available on its GitHub repository.