diff --git a/build.zig b/build.zig
index 8df2ed5..5629706 100644
--- a/build.zig
+++ b/build.zig
@@ -1,34 +1,8 @@
 const std = @import("std");
 
-// Although this function looks imperative, note that its job is to
-// declaratively construct a build graph that will be executed by an external
-// runner.
 pub fn build(b: *std.Build) 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 optimization options allow the person running `zig build` to select
-    // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. Here we do not
-    // set a preferred release mode, allowing the user to decide how to optimize.
     const optimize = b.standardOptimizeOption(.{});
-
-    const lib = b.addStaticLibrary(.{
-        .name = "nyotun",
-        // In this case the main source file is merely a path, however, in more
-        // complicated build scripts, this could be a generated file.
-        .root_source_file = b.path("src/root.zig"),
-        .target = target,
-        .optimize = optimize,
-    });
-
-    // This declares intent for the library to be installed into the standard
-    // location when the user invokes the "install" step (the default step when
-    // running `zig build`).
-    b.installArtifact(lib);
-
     const exe = b.addExecutable(.{
         .name = "nyotun",
         .root_source_file = b.path("src/main.zig"),
@@ -36,6 +10,8 @@ pub fn build(b: *std.Build) void {
         .optimize = optimize,
     });
 
+    const sudo = b.option([]const u8, "sudo", "sudo command") orelse null;
+
     // This declares intent for the executable to be installed into the
     // standard location when the user invokes the "install" step (the default
     // step when running `zig build`).
@@ -64,17 +40,25 @@ pub fn build(b: *std.Build) void {
     const run_step = b.step("run", "Run the app");
     run_step.dependOn(&run_cmd.step);
 
-    const exe_unit_tests = b.addTest(.{
+    const unit_tests = b.addTest(.{
         .root_source_file = b.path("src/test_all.zig"),
         .target = target,
         .optimize = optimize,
     });
 
-    const run_exe_unit_tests = b.addRunArtifact(exe_unit_tests);
+    const set_cap = b.addSystemCommand(if (sudo) |cmd|
+        &.{ cmd, "setcap", "cap_net_admin=+ep" }
+    else
+        &.{ "setcap", "cap_net_admin=+ep" });
+    set_cap.addArtifactArg(unit_tests);
+
+    const run_unit_tests = b.addRunArtifact(unit_tests);
+
+    run_unit_tests.step.dependOn(&set_cap.step);
 
     // Similar to creating the run step earlier, this exposes a `test` step to
     // the `zig build --help` menu, providing a way for the user to request
     // running the unit tests.
     const test_step = b.step("test", "Run unit tests");
-    test_step.dependOn(&run_exe_unit_tests.step);
+    test_step.dependOn(&run_unit_tests.step);
 }