pyodide/docs/building_from_sources.md

Building from sources

To install Pyodide from sources follow the steps in the readme.

Partial builds

To build a subset of available packages in pyodide, set the environement variable PYODIDE_PACKAGES to a comma separated list of packages. For instance,

PYODIDE_PACKAGES="toolz,attrs" make

Note that this environement variables must contain both the packages and their dependencies. The package names must much the folder names in packages/ exactly; in particular they are case sensitive.