diff --git a/01_HelloWorld/Makefile b/01_HelloWorld/Makefile
new file mode 100644
index 0000000..b65b5e4
--- /dev/null
+++ b/01_HelloWorld/Makefile
@@ -0,0 +1,22 @@
+.PHONY: help build small fast safe
+
+help: ## Display this message
+	@echo Usage:
+	@sed -nE "s|^(.+?)\\s*:\\s+##\\s*(.+?)$$|\\tmake \\1\\t- \\2|p" \
+		$(lastword $(MAKEFILE_LIST))
+
+build: ## Perform a debug build
+	zig build
+	ls -lF zig-cache/bin
+
+small: ## Perform a release-small build
+	zig build -Drelease-small
+	ls -lF zig-cache/bin
+
+fast: ## Perform a release-fast build
+	zig build -Drelease-fast
+	ls -lF zig-cache/bin
+
+safe: ## Perform a release-safe build
+	zig build -Drelease-safe
+	ls -lF zig-cache/bin
diff --git a/01_HelloWorld/build.zig b/01_HelloWorld/build.zig
new file mode 100644
index 0000000..81793e2
--- /dev/null
+++ b/01_HelloWorld/build.zig
@@ -0,0 +1,27 @@
+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("hello-world", "src/main.zig");
+    exe.setTarget(target);
+    exe.setBuildMode(mode);
+    exe.install();
+
+    const run_cmd = exe.run();
+    run_cmd.step.dependOn(b.getInstallStep());
+    if (b.args) |args| {
+        run_cmd.addArgs(args);
+    }
+
+    const run_step = b.step("run", "Run the app");
+    run_step.dependOn(&run_cmd.step);
+}
diff --git a/01_HelloWorld/src/main.zig b/01_HelloWorld/src/main.zig
new file mode 100644
index 0000000..f2223a1
--- /dev/null
+++ b/01_HelloWorld/src/main.zig
@@ -0,0 +1,5 @@
+const std = @import("std");
+
+pub fn main() anyerror!void {
+    std.debug.print("This is my {} zig program!\n", .{"first"});
+}