diff --git a/Cargo.lock b/Cargo.lock
index 8466c01..122cbf4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -11,12 +11,62 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "anstream"
+version = "0.6.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ae563653d1938f79b1ab1b5e668c87c76a9930414574a6583a7b7e11a8e6192"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
 [[package]]
 name = "anstyle"
 version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "862ed96ca487e809f1c8e5a8447f6ee2cf102f846893800b20cebdf541fc6bbd"
 
+[[package]]
+name = "anstyle-parse"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e7644824f0aa2c7b9384579234ef10eb7efb6a0deb83f9630a49594dd9c15c2"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e231f6134f61b71076a3eab506c379d4f36122f2af15a9ff04415ea4c3339e2"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e0633414522a32ffaac8ac6cc8f748e090c5717661fddeea04219e2344f5f2a"
+dependencies = [
+ "anstyle",
+ "once_cell_polyfill",
+ "windows-sys",
+]
+
+[[package]]
+name = "arraydeque"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d902e3d592a523def97af8f317b08ce16b7ab854c1985a0c671e6f15cebc236"
+
 [[package]]
 name = "assert_cmd"
 version = "2.0.17"
@@ -50,6 +100,58 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "cfg-if"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fd1289c04a9ea8cb22300a459a72a385d7c73d3259e2ed7dcb2af674838cfa9"
+
+[[package]]
+name = "clap"
+version = "4.5.48"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2134bb3ea021b78629caa971416385309e0131b351b25e01dc16fb54e1b5fae"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.5.48"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2ba64afa3c0a6df7fa517765e31314e983f51dda798ffba27b988194fb65dc9"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.5.47"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbfd7eae0b0f1a6e63d4b13c9c478de77c2eb546fba158ad50b4203dc24b9f9c"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b94f61472cee1439c0b966b47e3aca9ae07e45d070759512cd390ea2bebc6675"
+
+[[package]]
+name = "colorchoice"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b05b61dc5112cbb17e4b6cd61790d9845d13888356391624cbe7e41efeac1e75"
+
 [[package]]
 name = "difflib"
 version = "0.4.0"
@@ -62,6 +164,15 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10"
 
+[[package]]
+name = "encoding_rs"
+version = "0.8.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75030f3c4f45dafd7586dd6780965a8c7e8e285a5ecb86713e63a79c5b2766f3"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "float-cmp"
 version = "0.10.0"
@@ -71,12 +182,50 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "foldhash"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
+
+[[package]]
+name = "hashbrown"
+version = "0.15.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
+dependencies = [
+ "foldhash",
+]
+
+[[package]]
+name = "hashlink"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7382cf6263419f2d8df38c55d7da83da5c18aef87fc7a7fc1fb1e344edfe14c1"
+dependencies = [
+ "hashbrown",
+]
+
+[[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
+[[package]]
+name = "is_terminal_polyfill"
+version = "1.70.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+
 [[package]]
 name = "kvs"
 version = "0.1.0"
 dependencies = [
  "assert_cmd",
+ "clap",
  "predicates",
+ "yaml-rust2",
 ]
 
 [[package]]
@@ -106,6 +255,12 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "once_cell_polyfill"
+version = "1.70.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4895175b425cb1f87721b59f0f286c2092bd4af812243672510e1ac53e2e0ad"
+
 [[package]]
 name = "predicates"
 version = "3.1.3"
@@ -212,6 +367,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
 [[package]]
 name = "syn"
 version = "2.0.106"
@@ -235,6 +396,12 @@ version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f63a545481291138910575129486daeaf8ac54aee4387fe7906919f7830c7d9d"
 
+[[package]]
+name = "utf8parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+
 [[package]]
 name = "wait-timeout"
 version = "0.2.1"
@@ -243,3 +410,94 @@ checksum = "09ac3b126d3914f9849036f826e054cbabdc8519970b8998ddaf3b5bd3c65f11"
 dependencies = [
  "libc",
 ]
+
+[[package]]
+name = "windows-link"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e6ad25900d524eaabdbbb96d20b4311e1e7ae1699af4fb28c17ae66c80d798a"
+
+[[package]]
+name = "windows-sys"
+version = "0.60.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.53.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5fe6031c4041849d7c496a8ded650796e7b6ecc19df1a431c1a363342e5dc91"
+dependencies = [
+ "windows-link",
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86b8d5f90ddd19cb4a147a5fa63ca848db3df085e25fee3cc10b39b6eebae764"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7651a1f62a11b8cbd5e0d42526e55f2c99886c77e007179efff86c2b137e66c"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1dc67659d35f387f5f6c479dc4e28f1d4bb90ddd1a5d3da2e5d97b42d6272c3"
+
+[[package]]
+name = "windows_i686_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ce6ccbdedbf6d6354471319e781c0dfef054c81fbc7cf83f338a4296c0cae11"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "581fee95406bb13382d2f65cd4a908ca7b1e4c2f1917f143ba16efe98a589b5d"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e55b5ac9ea33f2fc1716d1742db15574fd6fc8dadc51caab1c16a3d3b4190ba"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a6e035dd0599267ce1ee132e51c27dd29437f63325753051e71dd9e42406c57"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
+
+[[package]]
+name = "yaml-rust2"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2462ea039c445496d8793d052e13787f2b90e750b833afee748e601c17621ed9"
+dependencies = [
+ "arraydeque",
+ "encoding_rs",
+ "hashlink",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 8bb73dd..0d7f32f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,5 +5,9 @@ authors = ["Minh Tran <minh@minhtrannhat.com>"]
 edition = "2024"
 
 [dependencies]
-assert_cmd = "2.0.17"
+clap = { version = "4.5.48", features = ["cargo", "derive", "help"] }
+yaml-rust2 = "0.10.4"
+
+[dev-dependencies]
 predicates = "3.1.3"
+assert_cmd = "2.0.17"
diff --git a/src/bin/kvs.rs b/src/bin/kvs.rs
index 7b70802..f0a648d 100644
--- a/src/bin/kvs.rs
+++ b/src/bin/kvs.rs
@@ -1,3 +1,83 @@
-fn main() {
-    println!("Hello, wolrld");
+use clap::builder::{Arg, Command};
+use clap::{ArgMatches, crate_authors, crate_description, crate_name, crate_version};
+use std::error::Error;
+use std::process;
+
+type KvsResult<T> = Result<T, Box<dyn Error>>;
+
+#[derive(Debug)]
+struct KvsArgs {}
+
+fn get_args() -> KvsResult<ArgMatches> {
+    Ok(Command::new(crate_name!())
+        .version(crate_version!())
+        .author(crate_authors!("\n"))
+        .about(crate_description!())
+        .help_template(
+            "\
+    {before-help}{name} {version}
+        {author-with-newline}{about-with-newline}
+    {usage-heading} {usage}
+    {all-args} {after-help}
+    ",
+        )
+        .subcommand_required(true)
+        .arg_required_else_help(true)
+        .subcommand(
+            Command::new("set")
+                .about("Set the value of a string key to a string")
+                .arg(
+                    Arg::new("KEY")
+                        .help("Key to set")
+                        .required(true)
+                        .value_name("KEY"),
+                )
+                .arg(
+                    Arg::new("VALUE")
+                        .help("Value to set")
+                        .required(true)
+                        .value_name("VALUE"),
+                ),
+        )
+        .subcommand(
+            Command::new("get")
+                .about("Get the string value of a given string key")
+                .arg(
+                    Arg::new("KEY")
+                        .help("Key to get")
+                        .required(true)
+                        .value_name("KEY"),
+                ),
+        )
+        .subcommand(
+            Command::new("rm").about("Remove a given key").arg(
+                Arg::new("KEY")
+                    .help("Key to remove")
+                    .required(true)
+                    .value_name("KEY"),
+            ),
+        )
+        .get_matches())
+}
+
+fn run(kvs_args: ArgMatches) {
+    match kvs_args.subcommand() {
+        Some(("set", _sub_m)) => {
+            eprintln!("unimplemented");
+            process::exit(1);
+        }
+        Some(("get", _sub_m)) => {
+            eprintln!("unimplemented");
+            process::exit(1);
+        }
+        Some(("rm", _sub_m)) => {
+            eprintln!("unimplemented");
+            process::exit(1);
+        }
+        _ => process::exit(0),
+    }
+}
+
+fn main() {
+    run(get_args().expect("BOOM !"))
 }