diff --git a/sleepingBarber/barber.pkl b/sleepingBarber/barber.pkl
new file mode 100644
index 0000000..3282012
--- /dev/null
+++ b/sleepingBarber/barber.pkl
@@ -0,0 +1,59 @@
+import
+  "https://raw.githubusercontent.com/CollaborativeStateMachines/Cirrina/refs/heads/develop/src/main/resources/pkl/csm/Csml.pkl"
+
+class StateMachine extends Csml.StateMachineDescription {
+  name = "barber"
+  states {
+    new {
+      name = "sleeping"
+      initial = true
+      entry {
+        new Csml.RaiseActionDescription {
+          event {
+            name = "statusSleeping"
+            channel = "global"
+          }
+        }
+      }
+      on {
+        new {
+          event = "enter"
+          target = "cutting"
+        }
+      }
+    }
+    new {
+      name = "cutting"
+      always {
+        new {
+          guards {
+            new {
+              expression = "utility:busyWait(1000) == 1000"
+            }
+          }
+          actions {
+            new Csml.RaiseActionDescription {
+              event {
+                name = "done"
+                data {
+                  new {
+                    name = "customer"
+                    value = "$customer"
+                  }
+                }
+                channel = "global"
+              }
+            }
+            new Csml.RaiseActionDescription {
+              event {
+                name = "getNext"
+                channel = "global"
+              }
+            }
+          }
+          target = "sleeping"
+        }
+      }
+    }
+  }
+}
diff --git a/sleepingBarber/customer.pkl b/sleepingBarber/customer.pkl
new file mode 100644
index 0000000..2d99b51
--- /dev/null
+++ b/sleepingBarber/customer.pkl
@@ -0,0 +1,127 @@
+import "https://raw.githubusercontent.com/CollaborativeStateMachines/Cirrina/refs/heads/develop/src/main/resources/pkl/csm/Csml.pkl"
+
+class StateMachine extends Csml.StateMachineDescription {
+  name = "customer"
+  local self = this
+  localContext {
+    variables {
+      new {
+        name = "counter"
+        value = "0"
+      }
+    }
+  }
+  states {
+    new {
+      name = "init"
+      initial = true
+      on {
+        new {
+          event = "ready"
+          target = "requestHaircut"
+        }
+      }
+    }
+    new {
+      name = "requestHaircut"
+      entry {
+        new Csml.RaiseActionDescription {
+          event {
+            name = "customerEnter"
+            data {
+              new {
+                name = "customer"
+                value = self.name
+              }
+            }
+            channel = "global"
+          }
+        }
+      }
+      on {
+        new {
+          event = "full"
+          guards {
+            new {
+              expression = "$customer == \(self.name)"
+            }
+          }
+          target = "requestHaircut"
+        }
+        new {
+          event = "enter"
+          guards {
+            new {
+              expression = "$customer == \(self.name)"
+            }
+          }
+          target = "gettingHaircut"
+        }
+        new {
+          event = "waiting"
+          guards {
+            new {
+              expression = "$customer == \(self.name)"
+            }
+          }
+          target = "waiting"
+        }
+      }
+    }
+    new {
+      name = "gettingHaircut"
+      entry {
+        new Csml.AssignActionDescription {
+          variable = new {
+            name = "counter"
+            value = "counter + 1"
+          }
+        }
+      }
+      on {
+        new {
+          event = "done"
+          guards {
+            new {
+              expression = "$customer == \(self.name)"
+            }
+            new {
+              expression = "counter < 333"
+            }
+          }
+          target = "requestHaircut"
+        }
+        new {
+          event = "done"
+          guards {
+            new {
+              expression = "$customer == \(self.name)"
+            }
+            new {
+              expression = "counter >= 333"
+            }
+          }
+          target = "leave"
+        }
+      }
+    }
+    new {
+      name = "waiting"
+      on {
+        new {
+          event = "enter"
+          guards {
+            new {
+              expression = "$customer == \(self.name)"
+            }
+          }
+          target = "gettingHaircut"
+        }
+      }
+    }
+    new {
+      name = "leave"
+      terminal = true
+    }
+  }
+}
diff --git a/sleepingBarber/defs.pkl b/sleepingBarber/defs.pkl
new file mode 100644
index 0000000..27526ab
--- /dev/null
+++ b/sleepingBarber/defs.pkl
@@ -0,0 +1 @@
+customers = List("1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15")
diff --git a/sleepingBarber/main.pkl b/sleepingBarber/main.pkl
new file mode 100644
index 0000000..86655d0
--- /dev/null
+++ b/sleepingBarber/main.pkl
@@ -0,0 +1,16 @@
+amends "https://raw.githubusercontent.com/CollaborativeStateMachines/Cirrina/refs/heads/develop/src/main/resources/pkl/csm/Csml.pkl"
+
+import "barber.pkl"
+import "customer.pkl"
+import "defs.pkl"
+import "waitingRoom.pkl"
+
+name = "benchmark"
+version = "3.0.0"
+stateMachines {
+  new barber.StateMachine {}
+  for (_def in defs.customers) {
+    new customer.StateMachine { name = _def }
+  }
+  new waitingRoom.StateMachine {}
+}
diff --git a/sleepingBarber/services.pkl b/sleepingBarber/services.pkl
new file mode 100644
index 0000000..48fc97f
--- /dev/null
+++ b/sleepingBarber/services.pkl
@@ -0,0 +1,3 @@
+amends "https://raw.githubusercontent.com/CollaborativeStateMachines/Cirrina/refs/heads/develop/src/main/resources/pkl/csm/ServiceImplementationBindings.pkl"
+
+bindings {}
diff --git a/sleepingBarber/waitingRoom.pkl b/sleepingBarber/waitingRoom.pkl
new file mode 100644
index 0000000..94f49ba
--- /dev/null
+++ b/sleepingBarber/waitingRoom.pkl
@@ -0,0 +1,193 @@
+import "https://raw.githubusercontent.com/CollaborativeStateMachines/Cirrina/refs/heads/develop/src/main/resources/pkl/csm/Csml.pkl"
+
+class StateMachine extends Csml.StateMachineDescription {
+  name = "waitingRoom"
+  localContext {
+    variables {
+      new {
+        name = "waitingCustomers"
+        value = "[...]"
+      }
+      new {
+        name = "barberStatus"
+        value = "''"
+      }
+    }
+  }
+  states {
+    new {
+      name = "process"
+      initial = true
+      entry {
+        new Csml.RaiseActionDescription {
+          event {
+            name = "ready"
+            channel = "global"
+          }
+        }
+      }
+      on {
+        new {
+          event = "customerEnter"
+          guards {
+            new {
+              expression = "waitingCustomers.size() == 3"
+            }
+          }
+          actions {
+            new Csml.RaiseActionDescription {
+              event {
+                name = "full"
+                data {
+                  new {
+                    name = "customer"
+                    value = "$customer"
+                  }
+                }
+                channel = "global"
+              }
+            }
+          }
+        }
+        new {
+          event = "customerEnter"
+          guards {
+            new {
+              expression = "waitingCustomers.isEmpty()"
+            }
+            new {
+              expression = "barberStatus == 'sleeping'"
+            }
+          }
+          actions {
+            new Csml.RaiseActionDescription {
+              event {
+                name = "enter"
+                data {
+                  new {
+                    name = "customer"
+                    value = "$customer"
+                  }
+                }
+                channel = "global"
+              }
+            }
+            new Csml.AssignActionDescription {
+              variable = new {
+                name = "barberStatus"
+                value = "'busy'"
+              }
+            }
+          }
+        }
+        new {
+          event = "customerEnter"
+          guards {
+            new {
+              expression = "waitingCustomers.isEmpty()"
+            }
+            new Csml.GuardDescription {
+              expression = "barberStatus == 'busy'"
+            }
+          }
+          actions {
+            new Csml.AssignActionDescription {
+              variable = new {
+                name = "waitingCustomers"
+                value = "utility:addToList(\("waitingCustomers"), $customer)"
+              }
+            }
+            new Csml.RaiseActionDescription {
+              event {
+                name = "waiting"
+                data {
+                  new {
+                    name = "customer"
+                    value = "$customer"
+                  }
+                }
+                channel = "global"
+              }
+            }
+          }
+        }
+        new {
+          event = "customerEnter"
+          guards {
+            new {
+              expression = "waitingCustomers.size() != 3"
+            }
+            new {
+              expression = "!waitingCustomers.isEmpty()"
+            }
+          }
+          actions {
+            new Csml.AssignActionDescription {
+              variable = new {
+                name = "waitingCustomers"
+                value = "utility:addToList(\("waitingCustomers"), $customer)"
+              }
+            }
+            new Csml.RaiseActionDescription {
+              event {
+                name = "waiting"
+                data {
+                  new {
+                    name = "customer"
+                    value = "$customer"
+                  }
+                }
+                channel = "global"
+              }
+            }
+          }
+        }
+        new {
+          event = "getNext"
+          guards {
+            new {
+              expression = "!waitingCustomers.isEmpty()"
+            }
+          }
+          actions {
+            new Csml.RaiseActionDescription {
+              event {
+                name = "enter"
+                data {
+                  new {
+                    name = "customer"
+                    value = "waitingCustomers.get(0)"
+                  }
+                }
+                channel = "global"
+              }
+            }
+            new Csml.AssignActionDescription {
+              variable = new {
+                name = "waitingCustomers"
+                value = "utility:removeFirst(\("waitingCustomers"))"
+              }
+            }
+            new Csml.AssignActionDescription {
+              variable = new {
+                name = "barberStatus"
+                value = "'busy'"
+              }
+            }
+          }
+        }
+        new {
+          event = "statusSleeping"
+          actions {
+            new Csml.AssignActionDescription {
+              variable = new {
+                name = "barberStatus"
+                value = "'sleeping'"
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}