diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..03d24c5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+libraylib.a
diff --git a/build.zig b/build.zig
index d6bc6ab..82edbfb 100644
--- a/build.zig
+++ b/build.zig
@@ -1,5 +1,5 @@
 const std = @import("std");
-const raylib = @import("build_raylib.zig");
+const raylib = @import("./3rdparty/raylib/src/build.zig");
 
 pub fn build(b: *std.build.Builder) void {
     // Standard target options allows the person running `zig build` to choose
diff --git a/build_raylib.zig b/build_raylib.zig
deleted file mode 100644
index bced3d0..0000000
--- a/build_raylib.zig
+++ /dev/null
@@ -1,83 +0,0 @@
-const std = @import("std");
-
-pub fn Pkg(srcdir: []const u8) type {
-    return struct {
-        pub fn addRaylib(b: *std.build.Builder, target: std.zig.CrossTarget) *std.build.LibExeObjStep {
-            // Standard release options allow the person running `zig build` to select
-            // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
-            const mode = b.standardReleaseOptions();
-
-            const raylib_flags = &[_][]const u8{
-                "-std=gnu99",
-                "-DPLATFORM_DESKTOP",
-                "-DGL_SILENCE_DEPRECATION=199309L",
-                "-fno-sanitize=undefined", // https://github.com/raysan5/raylib/issues/1891
-            };
-
-            const raylib = b.addStaticLibrary("raylib", srcdir ++ "/raylib.h");
-            raylib.setTarget(target);
-            raylib.setBuildMode(mode);
-            raylib.linkLibC();
-
-            raylib.addIncludeDir(srcdir ++ "/external/glfw/include");
-
-            raylib.addCSourceFiles(&.{
-                srcdir ++ "/raudio.c",
-                srcdir ++ "/rcore.c",
-                srcdir ++ "/rmodels.c",
-                srcdir ++ "/rshapes.c",
-                srcdir ++ "/rtext.c",
-                srcdir ++ "/rtextures.c",
-                srcdir ++ "/utils.c",
-            }, raylib_flags);
-
-            switch (raylib.target.toTarget().os.tag) {
-                .windows => {
-                    raylib.addCSourceFiles(&.{srcdir ++ "/rglfw.c"}, raylib_flags);
-                    raylib.linkSystemLibrary("winmm");
-                    raylib.linkSystemLibrary("gdi32");
-                    raylib.linkSystemLibrary("opengl32");
-                    raylib.addIncludeDir("external/glfw/deps/mingw");
-                },
-                .linux => {
-                    raylib.addCSourceFiles(&.{srcdir ++ "/rglfw.c"}, raylib_flags);
-                    raylib.linkSystemLibrary("GL");
-                    raylib.linkSystemLibrary("rt");
-                    raylib.linkSystemLibrary("dl");
-                    raylib.linkSystemLibrary("m");
-                    raylib.linkSystemLibrary("X11");
-                },
-                .macos => {
-                    // On macos rglfw.c include Objective-C files.
-                    const raylib_flags_extra_macos = &[_][]const u8{
-                        "-ObjC",
-                    };
-                    raylib.addCSourceFiles(
-                        &.{srcdir ++ "/rglfw.c"},
-                        raylib_flags ++ raylib_flags_extra_macos,
-                    );
-                    raylib.linkFramework("Foundation");
-                },
-                else => {
-                    @panic("Unsupported OS");
-                },
-            }
-
-            raylib.setOutputDir("./");
-            raylib.install();
-            return raylib;
-        }
-    };
-}
-
-const lib = Pkg("./3rdparty/raylib/src");
-
-pub fn build(b: *std.build.Builder) void {
-    // Standard target options allows the person running `zig build` to choose
-    // what target to build for. Here we do not override the defaults, which
-    // means any target is allowed, and the default is native. Other options
-    // for restricting supported target set are available.
-    const target = b.standardTargetOptions(.{});
-
-    _ = lib.addRaylib(b, target);
-}
diff --git a/justfile b/justfile
new file mode 100644
index 0000000..acbc9ed
--- /dev/null
+++ b/justfile
@@ -0,0 +1,2 @@
+run:
+	nixGL zig build run
diff --git a/shell.nix b/shell.nix
index ec522b7..9f0dece 100644
--- a/shell.nix
+++ b/shell.nix
@@ -2,6 +2,7 @@
 
 pkgs.mkShell {
   buildInputs = with pkgs; [
+    just
     zig
 
     xorg.libX11