This document summarizes SciSmalltalk, an open-source library for scientific computing in Smalltalk. The library contains packages for numerical methods like matrices, statistics, polynomials, integration, and differential equations. It has over 600 unit tests and supports Pharo and Squeak. The library is developed and maintained by contributors from various universities and has been in development since 2012. Future plans include improving modularity and packaging, reproducing R examples in Roassal, and welcoming new contributions.