map { $_ => { map {$_ => 'y'} map { @{$_} } @{$versions{$_}} } } keys %versions
});
$_->{usage} = featurescore($_->{stats}) * $usagepct
map { $_ => { map {$_ => 'y'} map { @{$_} } @{$versions{$_}} } } keys %versions
});
$_->{usage} = featurescore($_->{stats}) * $usagepct