imagine being that entitled that you tell some1 what to do with their own code base that they wrote with their own time
git doesn't have a "standard" way of licensing, git has nothing to do with how you license your software
arguable, if he wants to license it then including the license in every file will surely hold up better in court - lots of opensource projects do this for this reason, similarly lots of commercial software includes the license in every file for the same reasons.
completely false. server-side code written by himself (i.e. not code based on or copied from the client, which the majoritty of the server software would be) is absolutely his intellectual propertly and absolutely would hold up in
any court.
because its his intellectual property and he can choose how he wants it to be used.
if he doesn't license it then
it remains his intellectual property and you can't use it.
"Unless you include a license that specifies otherwise, nobody else can copy, distribute, or modify your work without being at risk of take-downs, shake-downs, or litigation."
it being an emulator is
completely irrelevant, it's still his code and his intellectual property. he can absolutely take somebody to court if they violate the terms of this license.