add function for choice

.gitignore

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+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

Cargo.toml

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+[package]
+name = "haki"
+version = "0.1.0"
+edition = "2021"
+authors = ["Dave", "Henrique"]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

src/main.rs

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+use std::io;
+use std::num::ParseIntError;
+
+fn main() {
+    let mut parsed_input: Result<u32, ParseIntError>;
+
+    print_options();
+
+    while {
+        let mut input = String::new();
+        io::stdin().read_line(&mut input).expect("Failed to read line");
+
+        parsed_input = input.trim().parse();
+        let parsed_input_clone = parsed_input.clone();
+
+        parsed_input.is_err() || !(1..=10).contains(&parsed_input_clone.unwrap())
+    } {
+        println!("Invalid input. Please enter a valid number between 1 and 10:");
+        print_options();
+    }
+
+    match parsed_input.unwrap() {
+        1 => install_pinia(),
+        2 => install_husky(),
+        3 => install_jenkins(),
+        4 => install_jotai(),
+        _ => unreachable!(),
+    }
+}
+
+fn print_options() {
+    println!("What do you want to install?");
+    println!("1 - Pinia");
+    println!("2 - Husky");
+    println!("3 - Jenkins");
+    println!("4 - Jotai");
+}
+
+fn install_pinia() {
+    println!("Installing Pinia...");
+}
+
+fn install_husky() {
+    println!("Installing Husky...");
+}
+
+fn install_jenkins() {
+    println!("Installing Jenkins...");
+}
+
+fn install_jotai() {
+    println!("Installing Jotai...");
+}