diff --git a/src/c.zig b/src/c.zig
index 6c3b6f0..00469a1 100644
--- a/src/c.zig
+++ b/src/c.zig
@@ -1,4 +1,4 @@
-pub usingnamespace @cImport({
+pub const c = @cImport({
     @cInclude("objc/runtime.h");
     @cInclude("objc/message.h");
 });
diff --git a/src/class.zig b/src/class.zig
index bb0fff6..18dd871 100644
--- a/src/class.zig
+++ b/src/class.zig
@@ -1,12 +1,18 @@
 const std = @import("std");
 const assert = std.debug.assert;
-const c = @import("c.zig");
+const cpkg = @import("c.zig");
+const c = cpkg.c;
+const boolResult = cpkg.boolResult;
 const objc = @import("main.zig");
 const MsgSend = @import("msg_send.zig").MsgSend;
 
 pub const Class = struct {
     value: c.Class,
-    pub usingnamespace MsgSend(Class);
+
+    // Implement msgSend
+    const msg_send = MsgSend(Class);
+    pub const msgSend = msg_send.msgSend;
+    pub const msgSendSuper = msg_send.msgSendSuper;
 
     // Returns a property with a given name of a given class.
     pub fn getProperty(self: Class, name: [:0]const u8) ?objc.Property {
@@ -72,7 +78,7 @@ pub const Class = struct {
         assert(fn_info.params[0].type == c.id);
         assert(fn_info.params[1].type == c.SEL);
         const encoding = comptime objc.comptimeEncode(Fn);
-        return c.boolResult(@TypeOf(c.class_addMethod), c.class_addMethod(
+        return boolResult(@TypeOf(c.class_addMethod), c.class_addMethod(
             self.value,
             objc.sel(name).value,
             @ptrCast(&imp),
@@ -85,7 +91,7 @@ pub const Class = struct {
     pub fn addIvar(self: Class, name: [:0]const u8) bool {
         // The return type is i8 when we're cross compiling, unsure why.
         const result = c.class_addIvar(self.value, name, @sizeOf(c.id), @alignOf(c.id), "@");
-        return c.boolResult(@TypeOf(c.class_addIvar), result);
+        return boolResult(@TypeOf(c.class_addIvar), result);
     }
 };
 
diff --git a/src/encoding.zig b/src/encoding.zig
index cbc6245..9dcb64c 100644
--- a/src/encoding.zig
+++ b/src/encoding.zig
@@ -1,6 +1,6 @@
 const std = @import("std");
 const objc = @import("main.zig");
-const c = @import("c.zig");
+const c = @import("c.zig").c;
 const assert = std.debug.assert;
 const testing = std.testing;
 
diff --git a/src/main.zig b/src/main.zig
index 3fdbb66..16c6cf7 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -1,15 +1,33 @@
 const std = @import("std");
 
-pub const c = @import("c.zig");
-pub usingnamespace @import("autorelease.zig");
-pub usingnamespace @import("block.zig");
-pub usingnamespace @import("class.zig");
-pub usingnamespace @import("encoding.zig");
-pub usingnamespace @import("iterator.zig");
-pub usingnamespace @import("object.zig");
-pub usingnamespace @import("property.zig");
-pub usingnamespace @import("protocol.zig");
-pub usingnamespace @import("sel.zig");
+const autorelease = @import("autorelease.zig");
+const block = @import("block.zig");
+const class = @import("class.zig");
+const encoding = @import("encoding.zig");
+const iterator = @import("iterator.zig");
+const object = @import("object.zig");
+const property = @import("property.zig");
+const protocol = @import("protocol.zig");
+const selpkg = @import("sel.zig");
+
+pub const c = @import("c.zig").c;
+pub const AutoreleasePool = autorelease.AutoreleasePool;
+pub const Block = block.Block;
+pub const Class = class.Class;
+pub const getClass = class.getClass;
+pub const getMetaClass = class.getMetaClass;
+pub const allocateClassPair = class.allocateClassPair;
+pub const registerClassPair = class.registerClassPair;
+pub const disposeClassPair = class.disposeClassPair;
+pub const Encoding = encoding.Encoding;
+pub const comptimeEncode = encoding.comptimeEncode;
+pub const Iterator = iterator.Iterator;
+pub const Object = object.Object;
+pub const Property = property.Property;
+pub const Protocol = protocol.Protocol;
+pub const getProtocol = protocol.getProtocol;
+pub const sel = selpkg.sel;
+pub const Sel = selpkg.Sel;
 
 /// This just calls the C allocator free. Some things need to be freed
 /// and this is how they can be freed for objc.
diff --git a/src/msg_send.zig b/src/msg_send.zig
index 9a8386f..b4dd69b 100644
--- a/src/msg_send.zig
+++ b/src/msg_send.zig
@@ -1,12 +1,10 @@
 const std = @import("std");
 const builtin = @import("builtin");
 const assert = std.debug.assert;
-const c = @import("c.zig");
+const c = @import("c.zig").c;
 const objc = @import("main.zig");
 
 /// Returns a struct that implements the msgSend function for type T.
-/// This is meant to be used with `usingnamespace` to add dispatch
-/// capability to a type that supports it.
 pub fn MsgSend(comptime T: type) type {
     // 1. T should be a struct
     // 2. T should have a field "value" that can be an "id" (same size)
diff --git a/src/object.zig b/src/object.zig
index 2615502..6773928 100644
--- a/src/object.zig
+++ b/src/object.zig
@@ -1,5 +1,5 @@
 const std = @import("std");
-const c = @import("c.zig");
+const c = @import("c.zig").c;
 const objc = @import("main.zig");
 const MsgSend = @import("msg_send.zig").MsgSend;
 const Iterator = @import("iterator.zig").Iterator;
@@ -8,7 +8,10 @@ const Iterator = @import("iterator.zig").Iterator;
 pub const Object = struct {
     value: c.id,
 
-    pub usingnamespace MsgSend(Object);
+    // Implement msgSend
+    const msg_send = MsgSend(Object);
+    pub const msgSend = msg_send.msgSend;
+    pub const msgSendSuper = msg_send.msgSendSuper;
 
     /// Convert a raw "id" into an Object. id must fit the size of the
     /// normal C "id" type (i.e. a `usize`).
diff --git a/src/property.zig b/src/property.zig
index aa80481..e042306 100644
--- a/src/property.zig
+++ b/src/property.zig
@@ -1,5 +1,5 @@
 const std = @import("std");
-const c = @import("c.zig");
+const c = @import("c.zig").c;
 const objc = @import("main.zig");
 
 pub const Property = extern struct {
diff --git a/src/protocol.zig b/src/protocol.zig
index 8efaf50..e72e170 100644
--- a/src/protocol.zig
+++ b/src/protocol.zig
@@ -1,5 +1,5 @@
 const std = @import("std");
-const c = @import("c.zig");
+const c = @import("c.zig").c;
 const objc = @import("main.zig");
 
 pub const Protocol = extern struct {
diff --git a/src/sel.zig b/src/sel.zig
index 23c629f..8036961 100644
--- a/src/sel.zig
+++ b/src/sel.zig
@@ -1,5 +1,5 @@
 const std = @import("std");
-const c = @import("c.zig");
+const c = @import("c.zig").c;
 
 // Shorthand, equivalent to Sel.registerName
 pub inline fn sel(name: [:0]const u8) Sel {