diff --git a/neocitiesfs.pl b/neocitiesfs.pl
index c9c0225..e0e8b53 100755
--- a/neocitiesfs.pl
+++ b/neocitiesfs.pl
@@ -28,6 +28,8 @@ use Getopt::Long;
 use Carp::Always;
 use Smart::Comments;
 use File::Temp qw(tempfile);
+use threads;
+use threads::shared;
 
 my $user;
 my $pass;
@@ -78,7 +80,7 @@ or die("Error in command line arguments\n");
 	die $death_string if $death_string;
 }
 
-my %files;
+my %files :shared;
 my $suppress_list_update = 0;
 
 # for neocities, it can only be dir or file
@@ -164,25 +166,31 @@ sub update_known_files {
 			$type = $TYPE_FILE;
 			$mode = 0644;
 		}
-		$files{$dirs}{$filename} = {
+
+		$files{$dirs} //= &share({}); # mmm, tasty nested shared memory
+
+		$files{$dirs}{$filename} = shared_clone({
 			type => $type,
 			mode => $mode,
 			ctime => $times,
 			size => $size,
-		};
+			fn => undef,
+		});
 	}
-	$files{'/'}{'.'} = {
+	$files{'/'}{'.'} = shared_clone({
 		type => $TYPE_DIR,
 		mode => 0755,
 		ctime => time(),
 		size => 4096,
-	};
-	$files{'/'}{'..'} = {
+		fn => undef,
+	});
+	$files{'/'}{'..'} = shared_clone({
 		type => $TYPE_DIR,
 		mode => 0755,
 		ctime => time(),
 		size => 4096,
-	};
+		fn => undef,
+	});
 	# ## %files
 }
 
@@ -233,9 +241,10 @@ sub e_open {
 	return -ENOENT() unless exists($files{$dirs}{$file});
 	return -EISDIR() if $files{$dirs}{$file}{type} & 0040;
     
-	my $fh = [ rand() ];
-    
-	return (0, $fh);
+	#my $fh = [ rand() ];
+   
+	#return (0, $fh);
+	return 0;
 }
 
 sub e_create {
@@ -270,18 +279,21 @@ sub e_statfs { return 255, 1, 1, 1, 1, 2 }
 
 sub e_write {
 	my ($dirs, $file) = get_path_and_file(shift);
-	my ($buf, $off, $fh) = @_;
+	my ($buf, $off, $_fh) = @_;
 	## # e_write
 	## # $off 
 	## # $fh
 	return -ENOENT() unless exists($files{$dirs}{$file});
- 	if (! exists $files{$dirs}{$file}{fh}) {
-		($files{$dirs}{$file}{fh}, $files{$dirs}{$file}{fn}) = tempfile();
+
+ 	if (! $files{$dirs}{$file}{fn}) {
+		# filehandles CANNOT be shared between threads
+		(undef, $files{$dirs}{$file}{fn}) = tempfile();
 	}
-	my $fh2 = $files{$dirs}{$file}{fh};
-	$fh2->autoflush( 1 ); # perl doesnt 'print line' until it sees "\n" normally
-	seek $fh2, $off, 0;
-	print $fh2 $buf;
+	open my $fh, '>>', $files{$dirs}{$file}{fn};
+	$fh->autoflush( 1 ); # perl doesnt 'print line' until it sees "\n" normally
+	seek $fh, $off, 0 if $off;
+	print $fh $buf;
+	close $fh;
 	
 #	my $res = write_to_neocities($dirs, $file, $buf);
 	return length $buf;
@@ -290,15 +302,17 @@ sub e_write {
 sub e_flush {
 	my ($path, $_fh) = @_;
 	my ($dirs, $file) = get_path_and_file($path);
-	if (exists $files{$dirs}{$file}{fh}) {
+	if ($files{$dirs}{$file}{fn}) {
 		my $fn = $files{$dirs}{$file}{fn};
 		my $res = write_to_neocities($dirs, $file, $fn, 1);
-		close $files{$dirs}{$file}{fh};
-		delete $files{$dirs}{$file}{fh};
 		unlink $files{$dirs}{$file}{fn};
 		delete $files{$dirs}{$file}{fn};
 		return res_errno($res, 0);
 	}
+	else {
+		# ?
+		return 0;
+	}
 }
 
 sub e_not_implimented { return -ENOSYS; }
@@ -462,7 +476,7 @@ sub res_errno {
 		my $body = from_json($res->body);
 		my %error_codes = (
 			'invalid_file_type' => -124, ## -EMEDIUMTYPE -- meant to convey that user can't upload this kind of file
-			'missing_files' => -ENOENT, # when uploading, should work normally with mv
+			'missing_files' => -ENOENT, # when uploading and neocities thinks you've uploaded no files
 			'too_large' => -EFBIG,
 			'too_many_files' => -EMFILE, #-ENOSPC,
 			'directory_exists' => -EEXIST,
@@ -478,7 +492,8 @@ sub res_errno {
 			'email_not_validated' => -56, # EBADRQC # invaild requuest code ¯\_(ツ)_/¯
 			'invalid_auth' => -EACCES,
 			'not_found' => -ENOSYS, # calls to /api/ that doesn't exist (not that user should get this error message)
-		)
+		);
+		return $error_codes{ $body->{error_type} };
 	}
 	else {
 		# some kind of error, maybe related to internet?
@@ -490,7 +505,6 @@ sub res_errno {
 sub write_to_neocities {
 	my ($dirs, $file, $buffer, $is_buf_fn) = @_;
 	defined $is_buf_fn or $is_buf_fn = 0;
-
 	
 	my $ua = Mojo::UserAgent->new();
 	my $asset; 
@@ -501,7 +515,6 @@ sub write_to_neocities {
 		$asset = Mojo::Asset::File->new(path => $buffer);
 	}
 
-
 	my ($tx, $res);
 	if ($pass) {
 		$tx = $ua->post("https://$user:$pass\@neocities.org/api/upload" => 
@@ -542,6 +555,6 @@ Fuse::main(
 	utime  =>"main::e_not_implimented",
 	chown  =>"main::e_not_implimented",
 	chmod  =>"main::e_not_implimented",
-	threaded=>0,
-	#debug=>1,
+	threaded=>1,
+	debug=>0,
 );