# Overview dealii-X is a modular collection of libraries and applications for developing high-performance organ simulators built on top of `deal.II`. - Purpose: enable development and sharing of reusable components for organ simulations (brain, heart, lungs, liver, mechanobiology). - Audience: researchers and developers integrating `deal.II` with solvers, preconditioners, and multi-physics coupling tools. See the technical scope at `technical_scope.md`.