package.json
Overview
The xpm package.json file is
basically the same as the npm
package.json,
with some extensions.
The mandatory properties are name and version.
In addition, xpm groups several specific definitions below xpack.
The mandatory xpack definitions
The mandatory xpack definitions is used to store all
xpm specific metadata; for details, please see the
separate page.
LiquidJS substitutions
In addition to the xpacks definitions, another key extension
that comes with xpm is the use of
LiquidJS substitutions, described in a
separate page.