Holding customize image in git

[Ben Lau]

Hi,

    I am thinking about to make a custom system image for specific
region / purpose of education. So I wonder do it have
any public git repository that holding the image customization /
building , so that we could make our own branch based on it?

    If not such git repository existed, could we hold it on
dev.laptop.org? As the file size is quite large , I wonder is it
appropriate
to hold on dev.laptop.org .

Thanks.