JupyterLite is a web-based distribution of JupyterLab that runs entirely in the browser, leveraging WebAssembly builds of language kernels and interpreters.

In this talk, we introduce emscripten-forge, a conda-based software distribution tailored for WebAssembly and the web browser. Emscripten-forge empowers several JupyterLite kernels, including:

• xeus-Python for Python,
• xeus-R for R,
• xeus-Octave for GNU Octave.

These kernels cover some of the most popular languages in scientific computing.

Additionally, emscripten-forge includes builds for various terminal applications, utilized by the Cockle shell emulator to enable the JupyterLite terminal.