Or you could feed your kids. A small team can not maintain that much and if it is not your core business you should probably not try.
> the business activity that is main source of a company's profits and success
Maintaining libraries is not the core business of those that use those libraries, most of the time. That's why people use libraries.
When they said "maintain", I read it as short term, doing this if and when for all libraries down the dependency chain. Or, compile as x86, and wait until external resources push for the support.