t.

src/client.zig

@@ -4,14 +4,15 @@ const write = @import("./qtshit/write.zig");
 const qvar = @import("./qtshit/qvariant.zig");
 
 fn dumpDebug(name: []const u8, list: std.ArrayList(u8)) !void {
+        std.debug.print("dumpDebug list len {d}\n", .{list.items.len});
+
     const file = try std.fs.cwd().createFile(
         name,
-        .{ .read = true },
+        .{ .read = !true },
     );
     defer file.close();
 
     try file.writeAll(list.items);
-    try file.seekTo(0);
 }
 
 pub const Client = struct {
@@ -50,7 +51,6 @@ pub const Client = struct {
         try map.put("ClientDate", .{ .string = "0" });
 
         try write.add_qvariantmap(list.writer(), map);        
-
         try dumpDebug("ClientInit.bin", list);
 
         try s.stream.writer().writeAll(list.items);

src/qtshit/write.zig

@@ -66,7 +66,7 @@ pub fn add_qvariant(writer: anytype, variant: qvar.QVariant) !void {
     }
 }
 
-pub fn add_qvariantmap(writer: anytype, map: std.StringHashMap(qvar.QVariant)) !void {
+pub fn add_qvariantmap(writer: anytype, map: std.StringHashMap(qvar.QVariant)) @TypeOf(writer).Error!void {
     var size: u32 = 0;
 
     var iterator = map.iterator();