diff --git a/Cargo.lock b/Cargo.lock
index d4dc74e..27abeb0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,407 @@
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+
 [[package]]
 name = "zet"
 version = "0.1.0"
+dependencies = [
+ "chrono",
+ "clap",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 5dc4ccb..76e127f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,3 +8,5 @@ description = "Zettlekasten Command Line written in Rust"
 repository = "https://github.com/peterramaldes/zet.git"
 
 [dependencies]
+chrono = "0.4.31"
+clap = { version = "4.4.7", features = ["derive"] }
diff --git a/src/create.rs b/src/create.rs
new file mode 100644
index 0000000..e2b874a
--- /dev/null
+++ b/src/create.rs
@@ -0,0 +1,56 @@
+use chrono::Utc;
+use std::{
+    env,
+    fs::{self, File},
+    io,
+    process::Command,
+};
+
+pub fn run() -> io::Result<()> {
+    let path = get_path_from_files();
+
+    // Create the path if doesn't exists, thrown an error if cannot
+    fs::create_dir_all(&path)?;
+
+    // Create dir if doesn´t exists
+    let today = Utc::now();
+    let folder_name = today.date_naive().format("%Y%m%d");
+    let folder_path = format!("{path}/{folder_name}");
+    let _ = fs::create_dir(&folder_path);
+
+    // Create the file
+    let filename = format!("{}.md", today.format("%Y%m%d%H%M%S"));
+    let file_path = format!("{folder_path}/{filename}");
+    let _ = File::create(&file_path)?; // TODO: can we use this return to open the file?
+
+    // Open the file using the $EDITOR env, using the `vi` if doesn´t set
+    let editor = env::var("EDITOR").unwrap_or_else(|_e| String::from("vi"));
+    let _ = Command::new(editor).arg(file_path).status()?;
+
+    Ok(())
+}
+
+/// Get path with this precendece:
+///
+/// 1. $ZET_PATH
+/// 2. $HOME/.config/zet
+///
+/// This function is not portable, the .config folder will not work on windows
+fn get_path_from_files() -> String {
+    let mut path = match env::var("ZET_PATH") {
+        Ok(val) => String::from(val),
+        Err(_e) => "".to_string(),
+    };
+
+    if path.is_empty() {
+        let home = match env::var("HOME") {
+            Ok(val) => String::from(val),
+            Err(_e) => panic!("doesn't have $HOME env set"), // TODO: this should not be a problem
+                                                             // for windows :(
+        };
+
+        path = format!("{home}/.config/zet");
+    }
+
+    path
+}
diff --git a/src/main.rs b/src/main.rs
index e7a11a9..67a5ef0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,27 @@
-fn main() {
-    println!("Hello, world!");
+pub mod create;
+
+use clap::Parser;
+
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+struct Cli {
+    /// The subcommand after `zet` that the program will run
+    #[clap(subcommand)]
+    subcommand: Subcommand,
+}
+
+#[derive(Parser, Debug)]
+enum Subcommand {
+    /// Create the Zettelkasten markdown file and open it using the default $EDITOR or `vi` if
+    /// the env isn´t set.
+    #[clap(visible_alias = "c")]
+    Create,
+}
+
+fn main() -> std::io::Result<()> {
+    let cli = Cli::parse();
+
+    return match cli.subcommand {
+        Subcommand::Create => create::run(),
+    };
 }