diff --git a/.github/labeler.yml b/.github/labeler.yml
index f23205d6e..3bc595497 100644
--- a/.github/labeler.yml
+++ b/.github/labeler.yml
@@ -19,7 +19,7 @@
 'documentation':
   - changed-files:
       - any-glob-to-any-file:
-          - 'doc/**/*'
+          - 'docs/**/*'
           - 'media/specs/**/*'
 
 'ci':
diff --git a/.run/spice.run.xml b/.run/spice.run.xml
index b7cdd68f7..f5034be42 100644
--- a/.run/spice.run.xml
+++ b/.run/spice.run.xml
@@ -1,5 +1,5 @@
 <component name="ProjectRunConfigurationManager">
-  <configuration default="false" name="spice" type="CMakeRunConfiguration" factoryName="Application" PROGRAM_PARAMS="build -O0 -d -g ../../media/test-project/test.spice" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="Spice" TARGET_NAME="spice" CONFIG_NAME="Debug" RUN_TARGET_PROJECT_NAME="Spice" RUN_TARGET_NAME="spice">
+  <configuration default="false" name="spice" type="CMakeRunConfiguration" factoryName="Application" PROGRAM_PARAMS="run -O0 -d ../../media/test-project/test.spice" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="Spice" TARGET_NAME="spice" CONFIG_NAME="Debug" RUN_TARGET_PROJECT_NAME="Spice" RUN_TARGET_NAME="spice">
     <envs>
       <env name="LLVM_BUILD_INCLUDE_DIR" value="D:/LLVM/build-release/include" />
       <env name="LLVM_INCLUDE_DIR" value="D:/LLVM/llvm/include" />
diff --git a/docs/docs/how-to/oop.md b/docs/docs/how-to/oop.md
index f2b1947c2..c648e8907 100644
--- a/docs/docs/how-to/oop.md
+++ b/docs/docs/how-to/oop.md
@@ -47,12 +47,18 @@ type Human struct : MakeSound, Speak {
     unsigned int age
 }
 
+p Human.ctor(string firstName, string lastName, unsigned int age) {
+    this.firstName = firstName;
+    this.lastName = lastName;
+    this.age = age;
+}
+
 p Human.makeSound() {
-    // Sigh ...
+    printf("Sigh...\n");
 }
 
-p Human.sayHello() {
-    // Hi!
+p Human.sayHello(string name) {
+    printf("Hi, %s!\n", name);
 }
 
 type Car struct : MakeSound {
@@ -61,8 +67,14 @@ type Car struct : MakeSound {
     unsigned int seats
 }
 
+p Car.ctor(string brand, string model, unsigned int seats) {
+    this.brand = brand;
+    this.model = model;
+    this.seats = seats;
+}
+
 p Car.makeSound() {
-    // Wroom, wroom
+    printf("Wroom, wroom!\n");
 }
 
 type Parrot struct : MakeSound, Speak {
@@ -70,16 +82,35 @@ type Parrot struct : MakeSound, Speak {
     unsigned int age
 }
 
+p Parrot.ctor(string name, unsigned int age) {
+    this.name = name;
+    this.age = age;
+}
+
 p Parrot.makeSound() {
-    // Sqawk!
+    printf("Sqawk!\n");
 }
 
-p Parrot.sayHello() {
-    // Hello, squawk!
+p Parrot.sayHello(string name) {
+    printf("Hello %s, squawk!\n", name);
+}
+
+f<int> main() {
+    Human human = Human("John", "Doe", 25);
+    Car car = Car("Toyota", "Corolla", 5);
+    Parrot parrot = Parrot("Polly", 3);
+
+    human.makeSound();
+    car.makeSound();
+    parrot.makeSound();
+
+    human.sayHello("Jane");
+    parrot.sayHello("Jane");
+    return 0;
 }
 ```
 
-As all living beings, parrots and humans have an age. So you might want to extract the `unsigned int age`, that exists
+All living beings, parrots and humans have an age. So you might want to extract the `unsigned int age`, that exists
 in both structs to a separate struct called `LivingBeing`.
 
 ```spice
@@ -101,4 +132,8 @@ type Parrot struct : MakeSound, Speak {
 }
 
 // ...
-```
\ No newline at end of file
+```
+
+The `compose` keyword is used to include the fields and methods of another struct into the current struct. The members of the
+parent struct are accessible directly via name. e.g. `parrot.age` or through the compose member itself, e.g.
+`parrot.livingBeing.age`.
\ No newline at end of file
diff --git a/media/test-project/test.spice b/media/test-project/test.spice
index d148ac687..5a5c7e1b1 100644
--- a/media/test-project/test.spice
+++ b/media/test-project/test.spice
@@ -1,15 +1,77 @@
-import "std/data/hash-table";
+type Speak interface {
+    p sayHello(string);
+}
+
+type MakeSound interface {
+    p makeSound();
+}
+
+type Human struct : MakeSound, Speak {
+    string firstName
+    string lastName
+    unsigned int age
+}
+
+p Human.ctor(string firstName, string lastName, unsigned int age) {
+    this.firstName = firstName;
+    this.lastName = lastName;
+    this.age = age;
+}
+
+p Human.makeSound() {
+    printf("Sigh...\n");
+}
+
+p Human.sayHello(string name) {
+    printf("Hi, %s!\n", name);
+}
+
+type Car struct : MakeSound {
+    string brand
+    string model
+    unsigned int seats
+}
+
+p Car.ctor(string brand, string model, unsigned int seats) {
+    this.brand = brand;
+    this.model = model;
+    this.seats = seats;
+}
+
+p Car.makeSound() {
+    printf("Wroom, wroom!\n");
+}
+
+type Parrot struct : MakeSound, Speak {
+    string name
+    unsigned int age
+}
+
+p Parrot.ctor(string name, unsigned int age) {
+    this.name = name;
+    this.age = age;
+}
+
+p Parrot.makeSound() {
+    printf("Sqawk!\n");
+}
+
+p Parrot.sayHello(string name) {
+    printf("Hello %s, squawk!\n", name);
+}
 
 f<int> main() {
-    HashTable<int, int> hashTable = HashTable<int, int>();
-    hashTable.upsert(1, 2);
-    hashTable.upsert(2, 3);
+    Human human = Human("John", "Doe", 25);
+    Car car = Car("Toyota", "Corolla", 5);
+    Parrot parrot = Parrot("Polly", 3);
 
-    Optional<int> value = hashTable.get(1);
-    assert(value.get() == 2);
-    value = hashTable.get(2);
-    assert(value.get() == 3);
+    human.makeSound();
+    car.makeSound();
+    parrot.makeSound();
 
+    human.sayHello("Jane");
+    parrot.sayHello("Jane");
+    return 0;
 }
 
 /*import "bootstrap/util/block-allocator";