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diff --git a/exercises/026_hello2.zig b/exercises/026_hello2.zig
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+//
+// Great news! Now we know enough to understand a "real" Hello World
+// program in Zig - one that uses the system Standard Out resource...which
+// can fail!
+//
+const std = @import("std");
+
+// Take note that this main() definition now returns "!void" rather
+// than just "void". Since there's no specific error type, this means
+// that Zig will infer the error type. This is appropriate in the case
+// of main(), but can have consequences elsewhere.
+pub fn main() !void {
+
+    // We get a Writer for Standard Out so we can print() to it.
+    const stdout = std.io.getStdOut().writer();
+
+    // Unlike std.debug.print(), the Standard Out writer can fail
+    // with an error. We don't care _what_ the error is, we want
+    // to be able to pass it up as a return value of main().
+    //
+    // We just learned of a single statement which can accomplish this.
+    stdout.print("Hello world!\n", .{});
+}