diff --git a/Build.PL b/Build.PL
index e1ebb44..5c4ac7a 100644
--- a/Build.PL
+++ b/Build.PL
@@ -71,6 +71,11 @@ $class->new(
     requires => {
         'aliased'                           => '0.30',
         'Archive::Extract'                  => '0.88',
+        'Archive::Tar'                      => '2.32',
+        'Compress::Zlib'                    => '2.084',
+        'IO::Uncompress::Bunzip2'           => '2.084',
+        'IO::Uncompress::UnXz'              => '2.084',
+        'IO::Zlib'                          => '1.10',
         'Archive::Zip'                      => '1.30',
         'Class::ISA'                        => '0.36',
         'Cwd'                               => '3.33',
diff --git a/Changes b/Changes
index 23c1229..a9ec065 100644
--- a/Changes
+++ b/Changes
@@ -5,6 +5,14 @@ Revision history for Perl extension PGXN::Manager
          from appearing in stack traces.
        - Enabled fixup mode for the database connection, so the service
          can auto-recover from database downtimes.
+       - Switched from command-line binaries to pure Perl modules for
+         extracting archives. Not sure why it preferred binaries up to now,
+         but preferring Pure Perl eliminates a lot of IO::Select warnings that
+         were really messing with things.
+       - Changed some internal error propagation to use blessed arrays
+         rather than plain arrays, to prevent confusing any doe that might
+         try to call isa() on them (as was happening when preferring
+         command-line tools for extraction).
 
 0.21.0   2021-07-05T22:30:54Z
        - Updated the password hashing to a much slower and therefor more
@@ -14,7 +22,7 @@ Revision history for Perl extension PGXN::Manager
        - Changed the minimum password length from 4 to 8 characters.
        - Added clear_password() SQL function as a tool for admins to
          set a user password to a random string and create a reset token.
-       - Added the `reset_password` command to pgxn_maint for admins to use
+       - Added the `reset_password` command to `pgxn_maint` for admins to use
          to clear one or more user passwords and send emails to those users
          with links to create new passwords.
 
diff --git a/lib/PGXN/Manager/Distribution.pm b/lib/PGXN/Manager/Distribution.pm
index 41822e4..4c351e2 100644
--- a/lib/PGXN/Manager/Distribution.pm
+++ b/lib/PGXN/Manager/Distribution.pm
@@ -109,7 +109,7 @@ sub extract {
             my $ae = do {
                 my $extract_dir = File::Spec->catdir($workdir, 'source');
                 local $Archive::Extract::WARN = 1;
-                local $Archive::Extract::PREFER_BIN = 1;
+                # local $Archive::Extract::PREFER_BIN = 1;
                 # local $Archive::Extract::DEBUG = 1;
                 local $SIG{__WARN__} = \&_ae_error_handler;
                 my $ae = Archive::Extract->new(
@@ -129,7 +129,7 @@ sub extract {
         }
         return $self;
     } catch {
-        die $_ unless ref $_ eq 'ARRAY';
+        die $_ unless ref $_ eq '::_ERR';
         $self->error([@{ $_ }, $self->basename]);
         return;
     };
@@ -352,16 +352,16 @@ sub DEMOLISH {
 sub _zip_error_handler {
     for (shift) {
         if (/format error: can't find EOCD signature/) {
-            die ['“[_1]” doesn’t look like a distribution archive'];
+            die bless ['“[_1]” doesn’t look like a distribution archive'], '::_ERR';
         }
-        die [$_];
+        die bless [$_], '::_ERR';
     }
 }
 
 my $CWD = cwd;
 sub _ae_error_handler {
     chdir $CWD; # Go back to where we belong.
-    die ['“[_1]” doesn’t look like a distribution archive'];
+    die bless ['“[_1]” doesn’t look like a distribution archive'], '::_ERR';
 }
 
 __PACKAGE__->meta->make_immutable(inline_constructor => 0);
diff --git a/t/distribution.t b/t/distribution.t
index fecb613..d5ae231 100644
--- a/t/distribution.t
+++ b/t/distribution.t
@@ -110,7 +110,7 @@ is $dist->localized_error,
 # Try an invalid zip file.
 my $badzip = __FILE__ . '.zip';
 copy __FILE__, $badzip;
-END { unlink $badzip }
+END { unlink $badzip if $badzip }
 
 isa_ok $dist = new_dist($badzip), $CLASS, 'Bad zip distribution';
 ok !$dist->extract, 'Try to extract it';
@@ -122,7 +122,7 @@ is_deeply scalar $dist->error, [
 # Try an invalid tgz file.
 my $badtgz = __FILE__ . '.tgz';
 copy __FILE__, $badtgz;
-END { unlink $badtgz }
+END { unlink $badtgz if $badtgz }
 
 isa_ok $dist = new_dist($badtgz), $CLASS, 'Bad tgz distribution';
 ok !$dist->extract, 'Try to extract it';