@web-alchemy/fonttools/modules/varlib/get-python-variable-font-function.js

This is the Node.js adapter of [python font tools](https://github.com/fonttools/fonttools) via [Pyodide](https://pyodide.org) without having to install python and its dependencies.

async function getPythonVariableFontFunction(pyodide) {
  return pyodide.runPythonAsync(`
    from fontTools import ttLib
    from fontTools.varLib import instancer

    def main_fn(file_options, options):
      font = ttLib.TTFont(file_options['input-file'])
      partial = instancer.instantiateVariableFont(font, options)
      partial.save(file_options['output-file'])

    main_fn
  `)
}

module.exports = {
  getPythonVariableFontFunction
}