diff --git a/src/hosts.zig b/src/hosts.zig
new file mode 100644
index 0000000..4b0fd71
--- /dev/null
+++ b/src/hosts.zig
@@ -0,0 +1,6 @@
+const std = @import("std");
+const util = @import("util.zig");
+
+pub fn update_hosts(ips: util.IPs) !void {
+    std.debug.print("{any}\n", .{ips});
+}
diff --git a/src/main.zig b/src/main.zig
index c8a3f67..7fee4e7 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -1,24 +1,11 @@
 const std = @import("std");
+const util = @import("util.zig");
+const mdns = @import("mdns.zig");
+const hosts = @import("hosts.zig");
 
 pub fn main() !void {
-    // Prints to stderr (it's a shortcut based on `std.io.getStdErr()`)
-    std.debug.print("All your {s} are belong to us.\n", .{"codebase"});
-
-    // stdout is for the actual output of your application, for example if you
-    // are implementing gzip, then only the compressed bytes should be sent to
-    // stdout, not any debugging messages.
-    const stdout_file = std.io.getStdOut().writer();
-    var bw = std.io.bufferedWriter(stdout_file);
-    const stdout = bw.writer();
-
-    try stdout.print("Run `zig build test` to run the tests.\n", .{});
-
-    try bw.flush(); // don't forget to flush!
-}
-
-test "simple test" {
-    var list = std.ArrayList(i32).init(std.testing.allocator);
-    defer list.deinit(); // try commenting this out and see if zig detects the memory leak!
-    try list.append(42);
-    try std.testing.expectEqual(@as(i32, 42), list.pop());
+    try util.check_perms();
+    const domain = try util.get_input();
+    const ips = try mdns.get_mdns(domain);
+    try hosts.update_hosts(ips);
 }
diff --git a/src/mdns.zig b/src/mdns.zig
new file mode 100644
index 0000000..2d9364a
--- /dev/null
+++ b/src/mdns.zig
@@ -0,0 +1,10 @@
+const std = @import("std");
+const util = @import("util.zig");
+
+pub fn get_mdns(domain: [:0]const u8) !util.IPs {
+    std.debug.print("{s}\n", .{domain});
+    return util.IPs{
+        .v4 = "stub v4",
+        .v6 = "stub v6",
+    };
+}
diff --git a/src/util.zig b/src/util.zig
new file mode 100644
index 0000000..aef7ac3
--- /dev/null
+++ b/src/util.zig
@@ -0,0 +1,10 @@
+pub const IPs = struct {
+    v4: [:0]const u8,
+    v6: [:0]const u8,
+};
+
+pub fn check_perms() !void {}
+
+pub fn get_input() ![:0]const u8 {
+    return "stub";
+}