diff --git a/engine/build.zig b/engine/build.zig
index b3b6783..371da9a 100644
--- a/engine/build.zig
+++ b/engine/build.zig
@@ -31,13 +31,6 @@ pub fn init(outer_builder: *std.Build, opts: InitOptions) void {
         hot_reload = opts.hot_reload orelse (opts.optimize == .Debug);
     }
 
-    opts.root_module.resolved_target = opts.target;
-    opts.root_module.optimize = opts.optimize;
-    const game_lib = b.addLibrary(.{
-        .name = "game",
-        .root_module = opts.root_module,
-        .linkage = if (hot_reload) .dynamic else .static,
-    });
     const engine_lib = b.createModule(.{
         .root_source_file = b.path("src/lib/root.zig")
     });
@@ -50,6 +43,10 @@ pub fn init(outer_builder: *std.Build, opts: InitOptions) void {
         .has_imgui = opts.has_imgui,
         .hot_reload = hot_reload
     });
+    engine_module.root_module.addImport("lib", engine_lib);
+    if (!hot_reload) {
+        engine_module.root_module.addImport("game", opts.root_module);
+    }
 
     const mod_main = b.createModule(.{
         .root_source_file = b.path("src/runtime/main.zig"),
@@ -57,11 +54,7 @@ pub fn init(outer_builder: *std.Build, opts: InitOptions) void {
         .optimize = opts.optimize,
         .link_libc = true
     });
-    mod_main.addImport("lib", engine_lib);
     mod_main.addImport("engine", engine_module.root_module);
-    if (!hot_reload) {
-        mod_main.linkLibrary(game_lib);
-    }
 
     var run_cmd_step: *std.Build.Step = undefined;
     if (isWasm) {
@@ -95,6 +88,14 @@ pub fn init(outer_builder: *std.Build, opts: InitOptions) void {
                 run_cmd.addArgs(args);
             }
             if (hot_reload) {
+                opts.root_module.resolved_target = opts.target;
+                opts.root_module.optimize = opts.optimize;
+                const game_lib = b.addLibrary(.{
+                    .name = "game",
+                    .root_module = opts.root_module,
+                    .linkage = .dynamic
+                });
+
                 run_cmd.addFileArg(game_lib.getEmittedBin());
             }
             run_cmd_step = &run_cmd.step;
@@ -134,10 +135,6 @@ fn createEngineModule(b: *std.Build, opts: EngineModule.Options) EngineModule {
         .optimize = opts.optimize,
         .link_libc = true
     });
-    const lib = b.createModule(.{
-        .root_source_file = b.path("src/lib/root.zig")
-    });
-    mod.addImport("lib", lib);
 
     const dep_sokol = b.dependency("sokol", .{
         .target = opts.target,
diff --git a/engine/src/runtime/root.zig b/engine/src/runtime/root.zig
index 6ed6503..77aa877 100644
--- a/engine/src/runtime/root.zig
+++ b/engine/src/runtime/root.zig
@@ -36,11 +36,6 @@ const GameCallbacks = struct {
     debug: if (build_options.has_imgui) Debug else void
 };
 
-extern fn init(opts: *const Lib.Init) void;
-extern fn tick(frame: *Lib.Frame) void;
-extern fn deinit() void;
-extern fn debug(imgui: *Lib.ImGui) void;
-
 const GameLinking = union(enum) {
     static,
     dynamic: struct {
@@ -54,11 +49,12 @@ const GameLinking = union(enum) {
                     return error.StaticLinkingDisabled;
                 }
 
+                const game = @import("game");
                 return GameCallbacks{
-                    .init = init,
-                    .deinit = deinit,
-                    .tick = tick,
-                    .debug = if (build_options.has_imgui) debug else {},
+                    .init = game.init,
+                    .deinit = game.deinit,
+                    .tick = game.tick,
+                    .debug = if (build_options.has_imgui) game.debug else {},
                 };
             },
             .dynamic => |*opts| {