diff --git a/harmony-rs/fqm/src/main.rs b/harmony-rs/fqm/src/main.rs
index 26f0579..76b679a 100644
--- a/harmony-rs/fqm/src/main.rs
+++ b/harmony-rs/fqm/src/main.rs
@@ -1,7 +1,6 @@
 use fqm::{inventory::get_inventory, topology::fqm_topology};
 use harmony::{
-        inventory::InventoryFilter,
-        maestro::Maestro,
+    maestro::Maestro,
     modules::opnsense_dhcp::OPNSenseDhcpScore,
 };
 use log::info;
@@ -12,9 +11,9 @@ async fn main() {
 
     tokio::spawn(async move {
         info!("FQM Harmony Starting");
-        let maestro = Maestro::new(get_inventory());
         let topology = fqm_topology();
-        let score = OPNSenseDhcpScore::new(InventoryFilter::new(vec![]));
+        let maestro = Maestro::new(get_inventory(), topology.clone());
+        let score = OPNSenseDhcpScore::new(topology);
         let result = maestro.interpret(score).await.unwrap();
         info!("{result}");
     }).await.unwrap();
diff --git a/harmony-rs/fqm/src/topology.rs b/harmony-rs/fqm/src/topology.rs
index abcc112..520a375 100644
--- a/harmony-rs/fqm/src/topology.rs
+++ b/harmony-rs/fqm/src/topology.rs
@@ -1,18 +1,19 @@
 use std::net::Ipv4Addr;
+use std::sync::Arc;
 
 use cidr::Ipv4Cidr;
 use harmony::infra::opnsense::OPNSenseFirewall;
 use harmony::topology::{HAClusterTopology, IpAddress, UnmanagedRouter};
 
 pub fn fqm_topology() -> HAClusterTopology {
-    let opnsense_firewall = Box::new(OPNSenseFirewall::new(IpAddress::V4(Ipv4Addr::new(10, 10, 8, 2))));
+    let opnsense_firewall = Arc::new(OPNSenseFirewall::new(IpAddress::V4(Ipv4Addr::new(10, 10, 8, 2))));
 
     HAClusterTopology {
         firewall: opnsense_firewall.clone(),
         control_plane: vec![],
         ceph_hosts: vec![],
         switch: vec![],
-        router: Box::new(UnmanagedRouter::new(
+        router: Arc::new(UnmanagedRouter::new(
             IpAddress::V4(Ipv4Addr::new(10, 10, 8, 1)),
             Ipv4Cidr::new(Ipv4Addr::new(10, 10, 8, 0), 22).expect("Subnet is valid"),
         )),
diff --git a/harmony-rs/harmony/src/domain/hardware/mod.rs b/harmony-rs/harmony/src/domain/hardware/mod.rs
index ef03260..4072946 100644
--- a/harmony-rs/harmony/src/domain/hardware/mod.rs
+++ b/harmony-rs/harmony/src/domain/hardware/mod.rs
@@ -3,7 +3,7 @@ use derive_new::new;
 pub type HostGroup = Vec<Host>;
 pub type SwitchGroup = Vec<Switch>;
 pub type FirewallGroup = Vec<Host>;
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct Host {
     pub category: HostCategory,
     pub network: Vec<NetworkInterface>,
@@ -11,14 +11,14 @@ pub struct Host {
     pub labels: Vec<Label>,
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub enum HostCategory {
     Server,
     Firewall,
     Switch,
 }
 
-#[derive(Debug, new)]
+#[derive(Debug, new, Clone)]
 pub struct NetworkInterface {
     name: String,
     mac_address: MacAddress,
@@ -27,7 +27,7 @@ pub struct NetworkInterface {
 }
 type MacAddress = String;
 
-#[derive(Debug, new)]
+#[derive(Debug, new, Clone)]
 pub enum StorageConnectionType {
     Sata3g,
     Sata6g,
@@ -35,13 +35,13 @@ pub enum StorageConnectionType {
     Sas12g,
     PCIE,
 }
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub enum StorageKind {
     SSD,
     NVME,
     HDD,
 }
-#[derive(Debug, new)]
+#[derive(Debug, new, Clone)]
 pub struct Storage {
     connection: StorageConnectionType,
     kind: StorageKind,
@@ -49,13 +49,13 @@ pub struct Storage {
     serial: String,
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct Switch {
     interface: Vec<NetworkInterface>,
     management_interface: NetworkInterface,
 }
 
-#[derive(Debug, new)]
+#[derive(Debug, new, Clone)]
 pub struct Label {
     name: String,
     value: String,
diff --git a/harmony-rs/harmony/src/domain/interpret/mod.rs b/harmony-rs/harmony/src/domain/interpret/mod.rs
index f3350c2..00fa975 100644
--- a/harmony-rs/harmony/src/domain/interpret/mod.rs
+++ b/harmony-rs/harmony/src/domain/interpret/mod.rs
@@ -4,7 +4,7 @@ use async_trait::async_trait;
 use derive_new::new;
 
 use super::{
-    data::{Id, Version}, executors::ExecutorError, inventory::Inventory, score::Score
+    data::{Id, Version}, executors::ExecutorError, inventory::Inventory, score::Score, topology::HAClusterTopology
 };
 
 pub enum InterpretName {
@@ -21,7 +21,7 @@ impl std::fmt::Display for InterpretName {
 
 #[async_trait]
 pub trait Interpret {
-    async fn execute(&self, inventory: &Inventory) -> Result<Outcome, InterpretError>;
+    async fn execute(&self, inventory: &Inventory, topology: &HAClusterTopology) -> Result<Outcome, InterpretError>;
     fn get_name(&self) -> InterpretName;
     fn get_version(&self) -> Version;
     fn get_status(&self) -> InterpretStatus;
diff --git a/harmony-rs/harmony/src/domain/maestro/mod.rs b/harmony-rs/harmony/src/domain/maestro/mod.rs
index d71a9af..a163cc4 100644
--- a/harmony-rs/harmony/src/domain/maestro/mod.rs
+++ b/harmony-rs/harmony/src/domain/maestro/mod.rs
@@ -1,11 +1,12 @@
 use derive_new::new;
 use log::info;
 
-use super::{interpret::{Interpret, InterpretError, Outcome}, inventory::Inventory, score::Score};
+use super::{interpret::{Interpret, InterpretError, Outcome}, inventory::Inventory, score::Score, topology::HAClusterTopology};
 
 #[derive(new)]
 pub struct Maestro {
     inventory: Inventory,
+    topology: HAClusterTopology,
 }
 
 impl Maestro {
@@ -32,7 +33,7 @@ impl Maestro {
         info!("Running score {score:?}");
         let interpret: S::InterpretType = score.create_interpret();
         info!("Launching interpret {interpret:?}");
-        let result = interpret.execute(&self.inventory).await;
+        let result = interpret.execute(&self.inventory, &self.topology).await;
         info!("Got result {result:?}");
         result
     }
diff --git a/harmony-rs/harmony/src/domain/score.rs b/harmony-rs/harmony/src/domain/score.rs
index 4ca10ae..32647d6 100644
--- a/harmony-rs/harmony/src/domain/score.rs
+++ b/harmony-rs/harmony/src/domain/score.rs
@@ -1,6 +1,6 @@
 use super::{interpret::Interpret, inventory::InventorySlice};
 
-pub trait Score: Send + Sync + std::fmt::Debug {
+pub trait Score: std::fmt::Debug {
     type InterpretType: Interpret + std::fmt::Debug;
     fn get_inventory_filter(&self) -> InventorySlice;
     fn create_interpret(self) -> Self::InterpretType;
diff --git a/harmony-rs/harmony/src/domain/topology/load_balancer.rs b/harmony-rs/harmony/src/domain/topology/load_balancer.rs
index 0259072..ce26f55 100644
--- a/harmony-rs/harmony/src/domain/topology/load_balancer.rs
+++ b/harmony-rs/harmony/src/domain/topology/load_balancer.rs
@@ -1,13 +1,21 @@
 use super::IpAddress;
 
-pub trait LoadBalancer {
+pub trait LoadBalancer : Send + Sync{
     fn add_backend(&mut self, backend: Backend) -> Result<(), LoadBalancerError>;
     fn remove_backend(&mut self, backend_id: &str) -> Result<(), LoadBalancerError>;
     fn add_frontend(&mut self, frontend: Frontend) -> Result<(), LoadBalancerError>;
     fn remove_frontend(&mut self, frontend_id: &str) -> Result<(), LoadBalancerError>;
     fn list_backends(&self) -> Vec<Backend>;
     fn list_frontends(&self) -> Vec<Frontend>;
+    fn get_ip(&self) -> IpAddress;
 }
+
+impl std::fmt::Debug for dyn LoadBalancer {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_fmt(format_args!("LoadBalancer {}", self.get_ip()))
+    }
+}
+
 pub struct LoadBalancerError;
 
 #[derive(Clone, Debug)]
diff --git a/harmony-rs/harmony/src/domain/topology/mod.rs b/harmony-rs/harmony/src/domain/topology/mod.rs
index 27507dd..2f5b91c 100644
--- a/harmony-rs/harmony/src/domain/topology/mod.rs
+++ b/harmony-rs/harmony/src/domain/topology/mod.rs
@@ -1,20 +1,21 @@
-mod router;
 mod load_balancer;
-pub use router::*;
+mod router;
 pub use load_balancer::*;
+pub use router::*;
 mod network;
 pub use network::*;
 
-use std::net::IpAddr;
+use std::{net::IpAddr, sync::Arc};
 
 use super::hardware::Host;
 
+#[derive(Debug, Clone)]
 pub struct HAClusterTopology {
-    pub router: Box<dyn Router + Send>,
-    pub load_balancer: Box<dyn LoadBalancer + Send>,
-    pub firewall: Box<dyn Firewall + Send>,
-    pub dhcp_server: Box<dyn DhcpServer + Send>,
-    pub dns_server: Box<dyn DnsServer + Send>,
+    pub router: Arc<dyn Router>,
+    pub load_balancer: Arc<dyn LoadBalancer>,
+    pub firewall: Arc<dyn Firewall>,
+    pub dhcp_server: Arc<dyn DhcpServer>,
+    pub dns_server: Arc<dyn DnsServer>,
     pub control_plane: Vec<ClusterMember>,
     pub workers: Vec<ClusterMember>,
     pub ceph_hosts: Vec<ClusterMember>,
@@ -23,13 +24,22 @@ pub struct HAClusterTopology {
 
 pub type IpAddress = IpAddr;
 
+#[derive(Debug, Clone)]
 pub struct ClusterMember {
-    pub management: Box<dyn ManagementInterface + Send>,
+    pub management: Arc<dyn ManagementInterface>,
     pub host: Host,
 }
 
-pub trait ManagementInterface {
+pub trait ManagementInterface: Send + Sync {
     fn boot_to_pxe(&self);
     fn get_ip(&self) -> IpAddress;
 }
 
+impl std::fmt::Debug for dyn ManagementInterface {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_fmt(format_args!(
+            "ManagementInterface with ip {}",
+            self.get_ip()
+        ))
+    }
+}
diff --git a/harmony-rs/harmony/src/domain/topology/network.rs b/harmony-rs/harmony/src/domain/topology/network.rs
index 4bc8cf2..9d17dca 100644
--- a/harmony-rs/harmony/src/domain/topology/network.rs
+++ b/harmony-rs/harmony/src/domain/topology/network.rs
@@ -1,28 +1,47 @@
 use super::IpAddress;
 
-pub trait Firewall {
+pub trait Firewall: Send + Sync {
     fn add_rule(&mut self, rule: FirewallRule) -> Result<(), FirewallError>;
     fn remove_rule(&mut self, rule_id: &str) -> Result<(), FirewallError>;
     fn list_rules(&self) -> Vec<FirewallRule>;
     fn get_ip(&self) -> IpAddress;
 }
 
+impl std::fmt::Debug for dyn Firewall {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_fmt(format_args!("Firewall {}", self.get_ip()))
+    }
+}
+
 pub struct NetworkDomain {
     pub name: String
 }
 
-pub trait DhcpServer {
+pub trait DhcpServer: Send + Sync {
     fn add_static_mapping(&mut self, mac: MacAddress, ip: IpAddress) -> Result<(), DhcpError>;
     fn remove_static_mapping(&mut self, mac: &MacAddress) -> Result<(), DhcpError>;
     fn list_static_mappings(&self) -> Vec<(MacAddress, IpAddress)>;
+    fn get_ip(&self) -> IpAddress;
 }
 
-pub trait DnsServer {
+impl std::fmt::Debug for dyn DhcpServer {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_fmt(format_args!("DhcpServer {}", self.get_ip()))
+    }
+}
+
+pub trait DnsServer: Send + Sync {
     fn add_record(&mut self, name: &str, record_type: DnsRecordType, value: &str) -> Result<(), DnsError>;
     fn remove_record(&mut self, name: &str, record_type: DnsRecordType) -> Result<(), DnsError>;
     fn list_records(&self) -> Vec<DnsRecord>;
+    fn get_ip(&self) -> IpAddress;
 }
 
+impl std::fmt::Debug for dyn DnsServer {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_fmt(format_args!("DnsServer {}", self.get_ip()))
+    }
+}
 #[derive(Clone, Debug)]
 pub struct FirewallRule {
     pub id: String,
diff --git a/harmony-rs/harmony/src/domain/topology/router.rs b/harmony-rs/harmony/src/domain/topology/router.rs
index 8e82503..58e67fb 100644
--- a/harmony-rs/harmony/src/domain/topology/router.rs
+++ b/harmony-rs/harmony/src/domain/topology/router.rs
@@ -1,13 +1,21 @@
+use std::sync::Arc;
+
 use cidr::Ipv4Cidr;
 use derive_new::new;
 
 use super::IpAddress;
 
-pub trait Router {
+pub trait Router: Send + Sync {
     fn get_gateway(&self) -> IpAddress;
     fn get_cidr(&self) -> Ipv4Cidr;
 }
 
+impl std::fmt::Debug for dyn Router {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_fmt(format_args!("Router Gateway : {}, CIDR : {}", self.get_gateway(), self.get_cidr()))
+    }
+}
+
 #[derive(new)]
 pub struct UnmanagedRouter {
     gateway: IpAddress,
diff --git a/harmony-rs/harmony/src/infra/executors/russh/mod.rs b/harmony-rs/harmony/src/infra/executors/russh/mod.rs
index b61c227..6e6c2c2 100644
--- a/harmony-rs/harmony/src/infra/executors/russh/mod.rs
+++ b/harmony-rs/harmony/src/infra/executors/russh/mod.rs
@@ -1,7 +1,6 @@
 use std::sync::Arc;
 use async_trait::async_trait;
 
-use log::info;
 use russh::{client, keys::key};
 
 use crate::domain::executors::{ExecutorError, SshClient};
diff --git a/harmony-rs/harmony/src/infra/opnsense/mod.rs b/harmony-rs/harmony/src/infra/opnsense/mod.rs
index 3def185..77de885 100644
--- a/harmony-rs/harmony/src/infra/opnsense/mod.rs
+++ b/harmony-rs/harmony/src/infra/opnsense/mod.rs
@@ -48,31 +48,43 @@ impl LoadBalancer for OPNSenseFirewall {
     fn list_frontends(&self) -> Vec<Frontend> {
         todo!()
     }
+
+    fn get_ip(&self) -> IpAddress {
+        self.ip_address.clone()
+    }
 }
 
 impl DhcpServer for OPNSenseFirewall {
-    fn add_static_mapping(&mut self, mac: crate::topology::MacAddress, ip: IpAddress) -> Result<(), crate::topology::DhcpError> {
+    fn add_static_mapping(&mut self, _mac: crate::topology::MacAddress, _ip: IpAddress) -> Result<(), crate::topology::DhcpError> {
         todo!()
     }
 
-    fn remove_static_mapping(&mut self, mac: &crate::topology::MacAddress) -> Result<(), crate::topology::DhcpError> {
+    fn remove_static_mapping(&mut self, _mac: &crate::topology::MacAddress) -> Result<(), crate::topology::DhcpError> {
         todo!()
     }
 
     fn list_static_mappings(&self) -> Vec<(crate::topology::MacAddress, IpAddress)> {
         todo!()
     }
+
+    fn get_ip(&self) -> IpAddress {
+        self.ip_address.clone()
+    }
 }
 impl DnsServer for OPNSenseFirewall {
-    fn add_record(&mut self, name: &str, record_type: crate::topology::DnsRecordType, value: &str) -> Result<(), crate::topology::DnsError> {
+    fn add_record(&mut self, _name: &str, _record_type: crate::topology::DnsRecordType, _value: &str) -> Result<(), crate::topology::DnsError> {
         todo!()
     }
 
-    fn remove_record(&mut self, name: &str, record_type: crate::topology::DnsRecordType) -> Result<(), crate::topology::DnsError> {
+    fn remove_record(&mut self, _name: &str, _record_type: crate::topology::DnsRecordType) -> Result<(), crate::topology::DnsError> {
         todo!()
     }
 
     fn list_records(&self) -> Vec<crate::topology::DnsRecord> {
         todo!()
     }
+
+    fn get_ip(&self) -> IpAddress {
+        self.ip_address.clone()
+    }
 }
diff --git a/harmony-rs/harmony/src/modules/opnsense_dhcp.rs b/harmony-rs/harmony/src/modules/opnsense_dhcp.rs
index ca21dc1..6e9b242 100644
--- a/harmony-rs/harmony/src/modules/opnsense_dhcp.rs
+++ b/harmony-rs/harmony/src/modules/opnsense_dhcp.rs
@@ -3,18 +3,18 @@ use derive_new::new;
 use log::info;
 
 use crate::{domain::{
-    data::{Id, Version}, executors::SshClient, hardware::NetworkInterface, interpret::{InterpretError, InterpretStatus, Outcome}, inventory::Inventory, topology::IpAddress
-}, infra::executors::russh::RusshClient};
+    data::{Id, Version}, hardware::NetworkInterface, interpret::{InterpretError, InterpretStatus, Outcome}, topology::IpAddress
+}, executors::SshClient, infra::executors::russh::RusshClient, inventory::Inventory, topology::HAClusterTopology};
 
 use crate::domain::{
-    interpret::Interpret, interpret::InterpretName, inventory::InventoryFilter,
-    inventory::InventorySlice, score::Score,
+    interpret::Interpret, interpret::InterpretName, inventory::InventorySlice, score::Score,
 };
 
 use crate::domain::executors::{ExecutorError, ExecutorResult};
-#[derive(Debug, new)]
+
+#[derive(Debug, new, Clone)]
 pub struct OPNSenseDhcpScore {
-    inventory_filter: InventoryFilter,
+    topology: HAClusterTopology,
 }
 
 impl Score for OPNSenseDhcpScore {
@@ -30,7 +30,7 @@ impl Score for OPNSenseDhcpScore {
 }
 
 /// https://docs.opnsense.org/manual/dhcp.html#advanced-settings
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct OPNSenseDhcpInterpret {
     score: OPNSenseDhcpScore,
     version: Version,
@@ -73,8 +73,8 @@ impl Interpret for OPNSenseDhcpInterpret {
         todo!()
     }
 
-    async fn execute(&self, _inventory: &Inventory) -> Result<Outcome, InterpretError> {
-        info!("Executing {} on inventory {_inventory:?}", self.get_name());
+    async fn execute(&self, inventory: &Inventory, _topology: &HAClusterTopology) -> Result<Outcome, InterpretError> {
+        info!("Executing {} on inventory {inventory:?}", self.get_name());
         let ssh_client = RusshClient{};
 
         info!("RusshClient initiated");