diff --git a/Cargo.toml b/Cargo.toml
index 4bb5221..34bb0d4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,9 @@ name = "sup-smsac"
 version = "0.1.0-beta.1"
 edition = "2021"
 license = "MIT OR Apache-2.0"
+authors = ["sup39 <sms@sup39.dev>"]
 repository = "https://github.com/sup39/sup-smsac"
+description = "A tool to support Super Mario Sunshine academic research and TAS."
 
 [dependencies]
 sup-smsac-derive = { path = "./sup-smsac-derive" }
diff --git a/README.md b/README.md
index 09e2141..3df4c1a 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,9 @@
 # sup-smsac
 A tool to support Super Mario Sunshine academic research and TAS.
-It is written in Rust (backend) and JavaScript (frontend), and uses HTTP + WebSocket to communicate between backend and frontend.
+
+It is written in Rust (backend) and JavaScript (frontend),
+and uses HTTP + WebSocket to communicate between backend and frontend.
+
 It only contains a simple Object Viewer at the moment.
 
 ## Usage
diff --git a/src/main.rs b/src/main.rs
index 0a49525..57c006a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -14,6 +14,13 @@ use std::path::PathBuf;
 use clap::Parser;
 
 #[derive(Parser)]
+#[command(author, version, about)]
+#[command(help_template = "\
+{before-help{name} v{version}
+{usage-heading} {usage}
+
+{all-args}{after-help}
+")]
 struct Args {
   #[arg(long, default_value_t = IpAddr::V4(std::net::Ipv4Addr::LOCALHOST))]
   host: IpAddr,
diff --git a/sup-smsac-derive/Cargo.toml b/sup-smsac-derive/Cargo.toml
index df397de..f85f07f 100644
--- a/sup-smsac-derive/Cargo.toml
+++ b/sup-smsac-derive/Cargo.toml
@@ -3,6 +3,7 @@ name = "sup-smsac-derive"
 version = "0.1.0-beta.1"
 edition = "2021"
 license = "MIT OR Apache-2.0"
+authors = ["sup39 <sms@sup39.dev>"]
 repository = "https://github.com/sup39/sup-smsac"
 
 [lib]
diff --git a/www/api.js b/www/api.js
index d4f76dd..7aab75e 100644
--- a/www/api.js
+++ b/www/api.js
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 sup39 <sms@sup39.dev>
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
 // @ts-check
 /**
  * @typedef {number|number[]} ReqAddr
diff --git a/www/index.css b/www/index.css
index 8932f9b..2e1741d 100644
--- a/www/index.css
+++ b/www/index.css
@@ -1,3 +1,8 @@
+/**
+ * SPDX-FileCopyrightText: 2023 sup39 <sms@sup39.dev>
+ * SPDX-License-Identifier: MIT OR Apache-2.0
+ */
+
 :root {
   --bg: #fff;
   --fg: #000;
diff --git a/www/index.js b/www/index.js
index a42e5e5..2b7840d 100644
--- a/www/index.js
+++ b/www/index.js
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 sup39 <sms@sup39.dev>
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
 // @ts-check
 /**
  * @typedef {{addr: number, cls: string, name: string, count: number}} Manager