SCIM is a terminal-based spreadsheet calculator with Vim-like functionality, supporting features such as CSV import and export, scripting, and keyboard-driven navigation. The project is open-source and available on GitHub, with a request for donations to support its development. SCIM is based on the original 'sc' spreadsheet calculator, which was written by James Gosling in 1981. The project aims to provide a lightweight and efficient alternative to traditional spreadsheet software.