Mesh is a data and code editor that combines features of a spreadsheet with a programming language, allowing users to write and edit code in a grid-based interface. It uses a custom formula language and stores data in text files, making it possible to manage changes using Git. The project is still in its early stages and has a number of features planned for future development, including error handling, scrolling, and undo/redo functionality. Mesh aims to provide a unique approach to data editing and processing, blending the ease of use of a spreadsheet with the power of a programming language.