diff --git a/.gitignore b/.gitignore
index d4777d2..a4fa9c9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,8 @@
 .DS_Store
 .AppleDouble
 .LSOverride
+.idea
+zig-cache
 
 # Icon must end with two \r
 Icon

diff --git a/test01/build.zig b/test01/build.zig
new file mode 100644
index 0000000..ae37b37
--- /dev/null
+++ b/test01/build.zig
@@ -0,0 +1,24 @@
+const Builder = @import("std").build.Builder;
+
+pub fn build(b: *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(.{});
+
+    // Standard release options allow the person running `zig build` to select
+    // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
+    const mode = b.standardReleaseOptions();
+
+    const exe = b.addExecutable("test01", "src/main.zig");
+    exe.setTarget(target);
+    exe.setBuildMode(mode);
+    exe.install();
+
+    const run_cmd = exe.run();
+    run_cmd.step.dependOn(b.getInstallStep());
+
+    const run_step = b.step("run", "Run the app");
+    run_step.dependOn(&run_cmd.step);
+}
diff --git a/test01/src/main.zig b/test01/src/main.zig
new file mode 100644
index 0000000..2d87281
--- /dev/null
+++ b/test01/src/main.zig
@@ -0,0 +1,5 @@
+const std = @import("std");
+
+pub fn main() anyerror!void {
+    std.debug.warn("Hello world.\n", .{});
+}