in summary: 
use Cwd;
sub TIESCALAR {bless {} => shift}
sub FETCH     {cwd}
sub STORE     {defined $_[1] and (chdir $_[1] or die $!)}
our $cwd;
tie $cwd => __PACKAGE__;

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that defined $_[1] is necessary becuase local seems to undef the variable at some point (otherwise resulting in a chdir to $HOME).

In reply to Re: local scoped cwd by Anonymous Monk
in thread local scoped cwd by Anonymous Monk

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