In what sense is Github closed-source?
(edit: The FSF makes the distinction between propietary software and Software as a Service: http://www.gnu.org/philosophy/who-does-that-server-really-se...)
(edit: The FSF makes the distinction between propietary software and Software as a Service: http://www.gnu.org/philosophy/who-does-that-server-really-se...)
In the colloquial sense. But as that page refers to, at least the JS code is proprietary.