diff --git a/rust_session/yahia008/minilib/Cargo.lock b/rust_session/yahia008/minilib/Cargo.lock
new file mode 100644
index 00000000..6a1dc09d
--- /dev/null
+++ b/rust_session/yahia008/minilib/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "minilib"
+version = "0.1.0"
diff --git a/rust_session/yahia008/minilib/Cargo.toml b/rust_session/yahia008/minilib/Cargo.toml
new file mode 100644
index 00000000..60907256
--- /dev/null
+++ b/rust_session/yahia008/minilib/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "minilib"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
diff --git a/rust_session/yahia008/minilib/src/library.rs b/rust_session/yahia008/minilib/src/library.rs
new file mode 100644
index 00000000..bba3da9f
--- /dev/null
+++ b/rust_session/yahia008/minilib/src/library.rs
@@ -0,0 +1,106 @@
+use crate::member::Member;
+
+#[derive(Debug, Clone)]
+pub struct Book {
+    pub title: String,
+    pub author: String,
+    pub available: bool,
+}
+
+#[derive(Debug)]
+pub struct Library {
+    pub books: Vec<Book>,
+}
+
+impl Library {
+    pub fn new() -> Self {
+        Library { books: Vec::new() }
+    }
+
+
+    pub fn add_book(&mut self, title: String, author: String, available: bool) {
+        let new_book = Book {
+            title,
+            author,
+            available,
+        };
+        self.books.push(new_book);
+        println!("Book added successfully!");
+    }
+
+
+    pub fn list_books(&self) {
+        if self.books.is_empty() {
+            println!(" No books in the library yet!");
+            return;
+        }
+        
+        println!("\nLibrary Collection:");
+        println!("{:<30} {:<25} {:<10}", "Title", "Author", "Available");
+        println!("{}", "-".repeat(65));
+        
+        for book in &self.books {
+            println!(
+                "{:<30} {:<25} {:<10}",
+                book.title,
+                book.author,
+                if book.available { "Yes" } else { "No" }
+            );
+        }
+    }
+
+    pub fn search_by_title(&self, title: &str) -> Option<&Book> {
+        self.books.iter().find(|book| book.title == title)
+    }
+
+    
+    pub fn search_by_author(&self, author: &str) -> Vec<&Book> {
+        self.books.iter().filter(|book| book.author == author).collect()
+    }
+
+    
+    pub fn checkout_book(&mut self, title: &str, member: &mut Member) -> bool {
+        if let Some(book) = self.books.iter_mut().find(|book| book.title == title) {
+            if book.available {
+                book.available = false;
+                member.borrowed_books.push(book.title.clone());
+                println!("'{}' has been checked out by {}", title, member.name);
+                return true;
+            } else {
+                println!(" '{}' is already checked out!", title);
+                return false;
+            }
+        }
+        println!(" Book '{}' not found!", title);
+        false
+    }
+
+    
+    pub fn return_book(&mut self, title: &str, member: &mut Member) -> bool {
+        if let Some(book) = self.books.iter_mut().find(|book| book.title == title) {
+            if !book.available {
+                book.available = true;
+                member.borrowed_books.retain(|b| b != title);
+                println!(" '{}' has been returned by {}", title, member.name);
+                return true;
+            } else {
+                println!(" '{}' wasn't checked out!", title);
+                return false;
+            }
+        }
+        println!("Book '{}' not found!", title);
+        false
+    }
+
+    
+    pub fn display_book_info(&self, title: &str) {
+        if let Some(book) = self.search_by_title(title) {
+            println!("\n📖 Book Details:");
+            println!("  Title:     {}", book.title);
+            println!("  Author:    {}", book.author);
+            println!("  Status:    {}", if book.available { "Available" } else { "Checked Out" });
+        } else {
+            println!(" Book '{}' not found!", title);
+        }
+    }
+}
\ No newline at end of file
diff --git a/rust_session/yahia008/minilib/src/main.rs b/rust_session/yahia008/minilib/src/main.rs
new file mode 100644
index 00000000..213b1892
--- /dev/null
+++ b/rust_session/yahia008/minilib/src/main.rs
@@ -0,0 +1,51 @@
+mod library;
+mod member;
+
+use library::Library;
+use member::Member;
+
+fn main() {
+  let mut library = Library::new();
+  let mut member = Member::new("rasputin".to_string());  
+
+    library.add_book("48 laws of power".to_string(), "robert green".to_string(), true);
+    library.add_book("meditation".to_string(), "Machiavelli".to_string(), true);
+    library.add_book("thing fall apart".to_string(), "Chinua Achebe".to_string(), true);
+    library.add_book("romeo an julliet".to_string(), "William Shakespeare".to_string(), false);
+
+
+    library.list_books();
+
+    println!("\n--- Searching for 'Rust in Action' ---");
+    if let Some(book) = library.search_by_title("meditation") {
+        println!("Found: {} by {}", book.title, book.author);
+    }
+
+    println!("\n--- Searching for books by 'Machiavelli' ---");
+    let books = library.search_by_author("Machiavelli");
+    for book in books {
+        println!("Found: {}", book.title);
+    }
+    
+    println!("\n--- Checkout Process ---");
+    library.checkout_book("48 laws of power", &mut member);
+    library.checkout_book("meditation", &mut member);
+    library.checkout_book("romeo an julliet", &mut member);
+       
+     member.list_borrowed_books();
+
+    println!("\n--- Book Info ---");
+    library.display_book_info("48 laws of power");
+    library.display_book_info("romeo an julliet");
+
+    println!("\n--- Return Process ---");
+    library.return_book("48 laws of power", &mut member);
+
+    println!("\n--- Updated Library ---");
+    library.list_books();
+
+
+    println!("\n--- rasputins's Remaining Books ---");
+    member.list_borrowed_books();
+    
+}
\ No newline at end of file
diff --git a/rust_session/yahia008/minilib/src/member.rs b/rust_session/yahia008/minilib/src/member.rs
new file mode 100644
index 00000000..4cc663cd
--- /dev/null
+++ b/rust_session/yahia008/minilib/src/member.rs
@@ -0,0 +1,25 @@
+#[derive(Debug)]
+pub struct Member {
+    pub name: String,
+    pub borrowed_books: Vec<String>,
+}
+
+impl Member {
+    pub fn new(name: String) -> Self {
+        Member {
+            name,
+            borrowed_books: Vec::new(),
+        }
+    }
+
+    pub fn list_borrowed_books(&self) {
+        if self.borrowed_books.is_empty() {
+            println!("{} hasn't borrowed any books.", self.name);
+        } else {
+            println!("\n {}'s Borrowed Books:", self.name);
+            for book in &self.borrowed_books {
+                println!("  - {}", book);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/rust_session/yahia008/student_registry-V1/Cargo.lock b/rust_session/yahia008/student_registry-V1/Cargo.lock
new file mode 100644
index 00000000..25893481
--- /dev/null
+++ b/rust_session/yahia008/student_registry-V1/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "student_registry-V1"
+version = "0.1.0"
diff --git a/rust_session/yahia008/student_registry-V1/Cargo.toml b/rust_session/yahia008/student_registry-V1/Cargo.toml
new file mode 100644
index 00000000..0eedbc73
--- /dev/null
+++ b/rust_session/yahia008/student_registry-V1/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "student_registry-V1"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
diff --git a/rust_session/yahia008/student_registry-V1/src/grade.rs b/rust_session/yahia008/student_registry-V1/src/grade.rs
new file mode 100644
index 00000000..10438b1e
--- /dev/null
+++ b/rust_session/yahia008/student_registry-V1/src/grade.rs
@@ -0,0 +1,31 @@
+#[derive(Debug, PartialEq)]
+pub enum Grade {
+    First,
+    Second,
+    Third,
+}
+
+impl Grade {
+    pub fn as_str(&self) -> &str {
+        match self {
+            Grade::First => "Cohort 1",
+            Grade::Second => "Cohort 2",
+            Grade::Third => "Cohort 3",
+        }
+    }
+}
+
+#[derive(Debug)]
+pub enum Sex {
+    Male,
+    Female,
+}
+
+impl Sex {
+    pub fn to_str(&self) {
+        match self {
+            Sex::Male => println!("male: 👨🏾"),
+            Sex::Female => println!("female: 👧🏾"),
+        }
+    }
+}
diff --git a/rust_session/yahia008/student_registry-V1/src/main.rs b/rust_session/yahia008/student_registry-V1/src/main.rs
new file mode 100644
index 00000000..18634ee5
--- /dev/null
+++ b/rust_session/yahia008/student_registry-V1/src/main.rs
@@ -0,0 +1,47 @@
+mod grade;
+mod registry;
+mod student_struct;
+
+
+use grade::{Grade, Sex};
+use registry::Registry;
+use student_struct::Student;
+
+fn main() {
+   let mut registry = Registry {
+        students: Vec::new(),
+        next_id: 0, 
+    };
+
+    registry.add("yusrah", 20, Sex::Female, Grade::First, 85.5);
+    registry.add("Dave", 22, Sex::Male, Grade::Second, 92.0);
+    registry.add("basongs", 19, Sex::Male, Grade::Third, 78.5);
+
+    println!("\nAll students:");
+    registry.list_all();
+
+
+    println!("\nUpdating student with ID 1...");
+    if let Some(student) = registry.update(0, "jiggs", 21, Sex::Male, Grade::Second, 88.0) {
+        println!("Updated: {} (ID {})", student.name, student.id);
+    } else {
+        println!("Student not found");
+    }
+
+     println!("\nAfter update:");
+    registry.list_all();
+
+    println!("\nFinding student with ID 2...");
+    if let Some(student) = registry.find_by_id(2) {
+        println!("Found: {} (ID {}, Age: {})", student.name, student.id, student.age);
+    }
+    
+    println!("\nDeleting student with ID 2...");
+    if let Some(deleted) = registry.delete(2) {
+        println!("Deleted: {} (ID {})", deleted.name, deleted.id);
+    }
+
+    println!("\nAfter deletion:");
+    registry.list_all();
+
+}
diff --git a/rust_session/yahia008/student_registry-V1/src/registry.rs b/rust_session/yahia008/student_registry-V1/src/registry.rs
new file mode 100644
index 00000000..a6b6e155
--- /dev/null
+++ b/rust_session/yahia008/student_registry-V1/src/registry.rs
@@ -0,0 +1,69 @@
+use crate::grade::{Grade, Sex};
+use crate::student_struct::Student;
+
+pub struct Registry {
+    pub students: Vec<Student>,
+    pub next_id: u32,
+}
+
+impl Registry {
+    pub fn add(&mut self, name: &str, age: u8, sex: Sex, grade: Grade, score: f32) {
+        let id = self.next_id;
+        let student = Student::new(id, name.to_string(), age, sex, grade, score);
+        println!("Added: {} (ID {})", student.name, student.id);
+        self.students.push(student);
+        self.next_id += 1;
+    }
+
+    pub fn list_all(&self) {
+        if self.students.is_empty() {
+            println!("  (no students enrolled yet)");
+            return;
+        }
+        println!(
+            "  {:>5}  {:<20}  {:<6}  {:<10}  {}",
+            "ID", "Name", "Age", "Grade", "Score"
+        );
+        println!("  {}", "-".repeat(55));
+        for student in &self.students {
+            println!(
+                "  {:>5}  {:<20}  {:>6}  {:<10}  {:.1}",
+                student.id,
+                student.name,
+                student.age,
+                student.grade.as_str(),
+                student.score,
+            );
+        }
+    }
+
+
+    
+    pub fn find_by_id(&mut self, id: u32) -> Option<&mut Student> {
+          self.students.iter_mut().find(|student| student.id == id)
+    }
+
+    pub fn update(&mut self, id:u32, name: &str, age: u8, sex: Sex, grade: Grade, score: f32) -> Option<&mut Student> {
+        if let Some(student) = self.find_by_id(id) {
+        student.name = name.to_string();
+        student.age = age;
+        student.sex = sex;
+        student.grade = grade;
+        student.score = score;
+        Some(student)
+    } else {
+        None
+    }
+    }
+
+     pub fn delete(&mut self, id: u32) -> Option<Student> {
+        let position = self.students.iter().position(|student| student.id == id);
+        
+        match position {
+            Some(index) => Some(self.students.remove(index)),
+            None => None,
+        }
+    }
+
+    
+}
diff --git a/rust_session/yahia008/student_registry-V1/src/registry_struct.rs b/rust_session/yahia008/student_registry-V1/src/registry_struct.rs
new file mode 100644
index 00000000..8b076a03
--- /dev/null
+++ b/rust_session/yahia008/student_registry-V1/src/registry_struct.rs
@@ -0,0 +1,6 @@
+use crate::student_struct;
+
+pub struct Registry {
+    students: Vec<student_struct::Student>, // Vec<Student> = "a list of Student values"
+    next_id: u32,           // auto-increment counter for IDs
+}
\ No newline at end of file
diff --git a/rust_session/yahia008/student_registry-V1/src/student_struct.rs b/rust_session/yahia008/student_registry-V1/src/student_struct.rs
new file mode 100644
index 00000000..9e4ead64
--- /dev/null
+++ b/rust_session/yahia008/student_registry-V1/src/student_struct.rs
@@ -0,0 +1,42 @@
+use crate::grade::{Grade, Sex};
+
+// A struct groups related pieces of data under one name.
+// Think of it as a custom data type you design yourself.
+
+#[derive(Debug)]
+pub struct Student {
+    pub id: u32,      // u32  = unsigned 32-bit integer (no negatives)
+    pub name: String, // String = heap-allocated, growable text
+    pub age: u8,
+    pub sex: Sex,
+    pub grade: Grade, // our own enum type from above
+    pub score: f32,
+}
+
+// This is the implementation of the student struct with its corresponding methods
+impl Student {
+    pub fn new(id: u32, name: String, age: u8, sex: Sex, grade: Grade, score: f32) -> Student {
+        Student {
+            id,
+            name,
+            age,
+            sex,
+            grade,
+            score,
+        }
+    }
+}
+
+#[derive(Debug)]
+pub enum Status {
+    Pending,
+    Ongoing,
+    Completed,
+}
+
+pub struct Todo {
+    id: u8,
+    title: String,
+    description: String,
+    status: Status,
+}
diff --git a/rust_session/yahia008/student_registry-V1/src/utils.rs b/rust_session/yahia008/student_registry-V1/src/utils.rs
new file mode 100644
index 00000000..006e5e9d
--- /dev/null
+++ b/rust_session/yahia008/student_registry-V1/src/utils.rs
@@ -0,0 +1,3 @@
+pub find_id(&self, id:u8)-> Option<&self> {
+     self.students.iter().find(|u| u.id == id)
+}
\ No newline at end of file
diff --git a/rust_session/yahia008/student_registry_v2/.gitignore b/rust_session/yahia008/student_registry_v2/.gitignore
new file mode 100644
index 00000000..9f970225
--- /dev/null
+++ b/rust_session/yahia008/student_registry_v2/.gitignore
@@ -0,0 +1 @@
+target/
\ No newline at end of file
diff --git a/rust_session/yahia008/student_registry_v2/Cargo.lock b/rust_session/yahia008/student_registry_v2/Cargo.lock
new file mode 100644
index 00000000..a4be051f
--- /dev/null
+++ b/rust_session/yahia008/student_registry_v2/Cargo.lock
@@ -0,0 +1,500 @@
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+# It is not intended for manual editing.
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+
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+ "unicode-xid",
+ "wasmparser",
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diff --git a/rust_session/yahia008/student_registry_v2/Cargo.toml b/rust_session/yahia008/student_registry_v2/Cargo.toml
new file mode 100644
index 00000000..6f08d669
--- /dev/null
+++ b/rust_session/yahia008/student_registry_v2/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "student_registry_v2"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+uuid = {version ="1", features = ["v4"]}
\ No newline at end of file
diff --git a/rust_session/yahia008/student_registry_v2/src/grade.rs b/rust_session/yahia008/student_registry_v2/src/grade.rs
new file mode 100644
index 00000000..10438b1e
--- /dev/null
+++ b/rust_session/yahia008/student_registry_v2/src/grade.rs
@@ -0,0 +1,31 @@
+#[derive(Debug, PartialEq)]
+pub enum Grade {
+    First,
+    Second,
+    Third,
+}
+
+impl Grade {
+    pub fn as_str(&self) -> &str {
+        match self {
+            Grade::First => "Cohort 1",
+            Grade::Second => "Cohort 2",
+            Grade::Third => "Cohort 3",
+        }
+    }
+}
+
+#[derive(Debug)]
+pub enum Sex {
+    Male,
+    Female,
+}
+
+impl Sex {
+    pub fn to_str(&self) {
+        match self {
+            Sex::Male => println!("male: 👨🏾"),
+            Sex::Female => println!("female: 👧🏾"),
+        }
+    }
+}
diff --git a/rust_session/yahia008/student_registry_v2/src/main.rs b/rust_session/yahia008/student_registry_v2/src/main.rs
new file mode 100644
index 00000000..1d26f9bb
--- /dev/null
+++ b/rust_session/yahia008/student_registry_v2/src/main.rs
@@ -0,0 +1,74 @@
+mod grade;
+mod registry;
+mod student_struct;
+
+
+use grade::{Grade, Sex};
+use registry::Registry;
+use student_struct::Student;
+use uuid::Uuid;
+fn main() {
+   let mut registry = Registry {
+        students: Vec::new(),
+        
+    };
+
+    registry.add("yusrah", 20, Sex::Female, Grade::First, 85.5);
+    registry.add("Dave", 22, Sex::Male, Grade::Second, 92.0);
+    registry.add("basongs", 19, Sex::Male, Grade::Third, 78.5);
+
+    println!("\nAll students:");
+    registry.list_all();
+
+    let first_student_id = registry.students[0].id;
+    let second_student_id = registry.students[1].id;
+    let third_student_id = registry.students[2].id;
+
+    
+
+    
+    
+    println!("\nUpdating student with ID {}...", first_student_id);
+    if let Some(student) = registry.update(first_student_id, "pragon", 16, Sex::Female, Grade::Second, 88.0) {
+        println!("Updated: {} (ID {})", student.name, student.id);
+    } else {
+        println!("Student not found");
+    }
+
+    println!("\nAfter update:");
+    registry.list_all();
+
+    println!("\nMaking multiple updates to first_student:");
+    registry.update_name(first_student_id, "sami".to_string());
+    registry.update_age(first_student_id, 32);
+    registry.update_grade(first_student_id, Grade::Third);
+    
+    println!("\nAfter multiple updates:");
+    registry.list_all();
+
+    println!("\nFinding student by ID...");
+    if let Some(student) = registry.find_by_id(first_student_id) {
+        println!("Found: {} (ID {}, Age: {})", student.name, student.id, student.age);
+    }
+
+    
+    println!("\nDeleting student with ID {}...", second_student_id);
+    if let Some(deleted) = registry.delete(second_student_id) {
+        println!("Deleted: {} (ID {})", deleted.name, deleted.id);
+    }
+
+    
+    println!("\nAfter deletion:");
+    registry.list_all();
+
+    let specific_uuid = Uuid::new_v4(); 
+    println!("\nTrying to find non-existent student with UUID {}...", specific_uuid);
+    if let Some(student) = registry.find_by_id(specific_uuid) {
+        println!("Found: {}", student.name);
+    } else {
+        println!("No student found with that UUID");
+    }
+    
+
+
+}
\ No newline at end of file
diff --git a/rust_session/yahia008/student_registry_v2/src/registry.rs b/rust_session/yahia008/student_registry_v2/src/registry.rs
new file mode 100644
index 00000000..c3733ef4
--- /dev/null
+++ b/rust_session/yahia008/student_registry_v2/src/registry.rs
@@ -0,0 +1,162 @@
+use crate::grade::{Grade, Sex};
+use crate::student_struct::Student;
+use uuid::Uuid;
+
+pub struct Registry {
+    pub students: Vec<Student>,
+    
+}
+
+impl Registry {
+    pub fn add(&mut self, name: &str, age: u8, sex: Sex, grade: Grade, score: f32) {
+
+        if name.trim().is_empty() {
+        println!("Name cannot be empty");
+    }
+
+     if name.len() < 2 {
+        println!("Name must be at least 2 characters long");
+    }
+    
+    if name.len() > 50 {
+        println!("Name cannot exceed 50 characters");
+    }
+    
+    if age < 18 {
+        println!("Student must be at least 18 years old");
+    }
+    
+    if age > 100 {
+        println!("Age cannot exceed 100 years");
+    }
+    
+    
+    if score < 0.0 {
+        println!("Score cannot be negative");
+    }
+    
+    if score > 100.0 {
+        println!("Score cannot exceed 100");
+    }
+
+
+        let student = Student::new(name.to_string(), age, sex, grade, score);
+        println!("Added: {} (ID {})", student.name, student.id);
+        self.students.push(student);  
+    }
+
+    pub fn list_all(&self) {
+        if self.students.is_empty() {
+            println!("  (no students enrolled yet)");
+            return;
+        }
+        println!(
+            "  {:>5}  {:<20}  {:<6}  {:<10}  {}",
+            "ID", "Name", "Age", "Grade", "Score"
+        );
+        println!("  {}", "-".repeat(55));
+        for student in &self.students {
+            println!(
+                "  {:>5}  {:<20}  {:>6}  {:<10}  {:.1}",
+                student.id,
+                student.name,
+                student.age,
+                student.grade.as_str(),
+                student.score,
+            );
+        }
+    }
+
+
+    
+    pub fn find_by_id(&mut self, id:Uuid) -> Option<&mut Student> {
+          self.students.iter_mut().find(|student| student.id == id)
+    }
+
+    pub fn update(&mut self, id:Uuid, name: &str, age: u8, sex: Sex, grade: Grade, score: f32) -> Option<&mut Student> {
+        if let Some(student) = self.find_by_id(id) {
+        student.name = name.to_string();
+        student.age = age;
+        student.sex = sex;
+        student.grade = grade;
+        student.score = score;
+        Some(student)
+    } else {
+        None
+    }
+    }
+
+
+    pub fn update_age(&mut self, id: Uuid, new_age: u8) -> Option<()> {
+        if let Some(student) = self.students.iter_mut().find(|s| s.id == id) {
+            if student.age == new_age {
+            println!("Name is already '{}', no update needed", student.age);
+            return Some(());  
+        } else {
+            println!("Updated age from '{}' to '{}'", student.age, new_age);
+            student.age = new_age;
+            return Some(());
+        }
+        } else {
+            println!("Student with ID {} not found", id);
+            None
+        }
+    }
+
+    pub fn update_name(&mut self, id: Uuid, new_name: String) -> Option<()> {
+        if let Some(student) = self.students.iter_mut().find(|s| s.id == id) {
+            if student.name == new_name {
+            println!("Name is already '{}', no update needed", student.name);
+           return Some(());
+        } else {
+            println!("Updated name from '{}' to '{}'", student.name, new_name);
+            student.name = new_name;
+            return Some(());
+        }
+           
+        } else {
+            println!("Student with ID {} not found", id);
+            None
+        }
+    }
+
+    #[allow(dead_code)]
+    pub fn update_sex(&mut self, id: Uuid, new_sex: Sex) -> Option<()> {
+        if let Some(student) = self.students.iter_mut().find(|s| s.id == id) {
+            student.sex = new_sex;
+            println!("Updated sex for student ID {}", id);
+            Some(())
+        } else {
+            println!("Student with ID {} not found", id);
+            None
+        }
+    }
+
+    #[allow(dead_code)]
+    pub fn update_grade(&mut self, id: Uuid, new_grade: Grade) -> Option<()> {
+        if let Some(student) = self.students.iter_mut().find(|s| s.id == id) {
+            if student.grade == new_grade {
+            println!("Grade is already , no update needed");
+            return Some(());  
+        } else {
+            println!("Updated grade from  to '{:?}'", new_grade);
+            student.grade = new_grade;
+            return Some(());
+        }
+        } else {
+            println!("Student with ID {} not found", id);
+            None
+        }
+    }
+
+     pub fn delete(&mut self, id: Uuid) -> Option<Student> {
+        let position = self.students.iter().position(|student| student.id == id);
+        
+        match position {
+            Some(index) => Some(self.students.remove(index)),
+            None => None,
+        }
+    }
+
+    
+}
diff --git a/rust_session/yahia008/student_registry_v2/src/registry_struct.rs b/rust_session/yahia008/student_registry_v2/src/registry_struct.rs
new file mode 100644
index 00000000..5bca0b02
--- /dev/null
+++ b/rust_session/yahia008/student_registry_v2/src/registry_struct.rs
@@ -0,0 +1,7 @@
+use crate::student_struct;
+use uuid::Uuid;
+
+pub struct Registry {
+    students: Vec<student_struct::Student>, // Vec<Student> = "a list of Student values"
+               // auto-increment counter for IDs
+}
\ No newline at end of file
diff --git a/rust_session/yahia008/student_registry_v2/src/student_struct.rs b/rust_session/yahia008/student_registry_v2/src/student_struct.rs
new file mode 100644
index 00000000..06070ea8
--- /dev/null
+++ b/rust_session/yahia008/student_registry_v2/src/student_struct.rs
@@ -0,0 +1,42 @@
+use crate::grade::{Grade, Sex};
+use uuid::Uuid;
+// A struct groups related pieces of data under one name.
+// Think of it as a custom data type you design yourself.
+
+#[derive(Debug)]
+pub struct Student {
+    pub id: Uuid,      // u32  = unsigned 32-bit integer (no negatives)
+    pub name: String, // String = heap-allocated, growable text
+    pub age: u8,
+    pub sex: Sex,
+    pub grade: Grade, // our own enum type from above
+    pub score: f32,
+}
+
+// This is the implementation of the student struct with its corresponding methods
+impl Student {
+    pub fn new(  name: String, age: u8, sex: Sex, grade: Grade, score: f32) -> Student {
+        Student {
+            id:Uuid::new_v4(),
+            name,
+            age,
+            sex,
+            grade,
+            score,
+        }
+    }
+}
+
+#[derive(Debug)]
+pub enum Status {
+    Pending,
+    Ongoing,
+    Completed,
+}
+
+pub struct Todo {
+    id: u8,
+    title: String,
+    description: String,
+    status: Status,
+}