diff --git a/flake.nix b/flake.nix
index d841f39..f467ac0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -19,12 +19,11 @@
   };
 
   outputs =
-    inputs@{
-      self,
-      nixpkgs,
-      flake-parts,
-      agenix,
-      ...
+    inputs@{ self
+    , nixpkgs
+    , flake-parts
+    , agenix
+    , ...
     }:
     flake-parts.lib.mkFlake { inherit inputs; } {
       imports = [ inputs.treefmt-nix.flakeModule ];
@@ -38,63 +37,30 @@
               ./modules
               agenix.nixosModules.default
             ];
+            hosts = import ./hosts.nix;
           in
-          {
-            apprentix = nixosSystem {
-              specialArgs = inputs;
-              modules = [ ./hosts/vm/apprentix ] ++ baseModules;
-            };
-
-            jitsi = nixosSystem {
-              specialArgs = inputs;
-              modules = [ ./hosts/vm/jitsi ] ++ baseModules;
-            };
-
-            livre = nixosSystem {
-              specialArgs = inputs;
-              modules = [ ./hosts/vm/livre ] ++ baseModules;
-            };
-
-            neo = nixosSystem {
-              specialArgs = inputs;
-              modules = [ ./hosts/vm/neo ] ++ baseModules;
-            };
-
-            nextcloud = nixosSystem {
-              specialArgs = inputs;
-              modules = [ ./hosts/vm/nextcloud ] ++ baseModules;
-            };
-
-            periodique = nixosSystem {
-              specialArgs = inputs;
-              modules = [ ./hosts/vm/periodique ] ++ baseModules;
-            };
-
-            redite = nixosSystem {
-              specialArgs = inputs;
-              modules = [ ./hosts/vm/redite ] ++ baseModules;
-            };
-
-            reverseproxy = nixosSystem {
-              specialArgs = inputs;
-              modules = [ ./hosts/vm/reverseproxy ] ++ baseModules;
-            };
-
-            thot = nixosSystem {
-              specialArgs = inputs;
-              modules = [ ./hosts/physiques/thot ] ++ baseModules;
-            };
-
-            two = nixosSystem {
-              specialArgs = inputs;
-              modules = [ ./hosts/vm/two ] ++ baseModules;
-            };
-
-            vaultwarden = nixosSystem {
-              specialArgs = inputs;
-              modules = [ ./hosts/vm/vaultwarden ] ++ baseModules;
-            };
-          };
+          # Physiques
+          (mapAttrs
+            (name: value:
+              nixosSystem {
+                specialArgs = inputs;
+                modules = [ ./hosts/physiques/${name} ] ++ baseModules;
+              }
+            )
+            # Filtre que c'est bien une machine Nixos
+            (filterAttrs (n: v: !(attrByPath [ "is_debian" ] false v)) hosts.physiques)
+          ) //
+          # VMs
+          (mapAttrs
+            (name: value:
+              nixosSystem {
+                specialArgs = inputs;
+                modules = [ ./hosts/vm/${name} ] ++ baseModules;
+              }
+            )
+            # Filtre que c'est bien une machine Nixos
+            (filterAttrs (n: v: !(attrByPath [ "is_debian" ] false v)) hosts.vms)
+          );
       };
 
       perSystem =
diff --git a/hosts.nix b/hosts.nix
new file mode 100644
index 0000000..d85a6d3
--- /dev/null
+++ b/hosts.nix
@@ -0,0 +1,167 @@
+let
+  adm = 10;
+  srv = n: 4;
+  srv-nat = 2;
+  san = 3;
+  adh = 42;
+in
+{
+  physiques ={ 
+    # cephirot = {
+    #   name = "cephirot";
+    #   id = 3;
+    #   vlans = [
+    #     adm
+    #     san
+    #   ];
+    #   serveur_type = ["san"];
+    #   description = ''
+    #     Un serveur avec peut etre un jour ceph
+    #   '';
+    #   public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    # };    
+    thot = {
+      name = "thot";
+      id = 14;
+      vlans = [
+        adm
+        san
+      ];
+      serveur_type = ["backup"];
+      description = ''
+        Serveur de backup du Crans, actuellement en SQ39
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+  };
+
+  vms = {
+    romanesco = {
+      name = "romanesco";
+      is_debian = true;
+      id = 145;
+      vlans = [
+        adm
+        (adh "185.230.78.252")
+        (srv "185.230.79.5")
+      ];
+      description = ''
+        DNS récursif
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+    neo = {
+      name = "neo";
+      id = 145;
+      vlans = [
+        adm
+        # pas besoin de spécifier l'ipv6 car elle est construite depuis l'id
+        (srv "180.230.79.5")
+      ];
+      description = ''
+        Matrix du crans, heberge également le bridge IRC <-> Matrix
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+    nextcloud = {
+      id = 146;
+      vlans = [
+        adm
+        san
+        srv-nat
+      ];
+      description = ''
+        NextCloud du Crans
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+    apprentix = {
+      id = 150;
+      vlans = [
+        adm
+      ];
+      description = ''
+        VM NixOs apprentie
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+    jitsi = {
+      id = 163;
+      vlans = [
+        adm
+        (srv "185.230.79.15")
+      ];
+      description = ''
+        Jitsi du crans
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+    livre = {
+      id = 140;
+      vlans = [
+        adm
+        srv-nat
+      ];
+      description = ''
+        Stirling PDF
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+    periodique = {
+      id = 118;
+      vlans = [
+        adm
+        srv-nat
+      ];
+      description = ''
+        Client matrix web (element)
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+    redite = {
+      id = 139;
+      vlans = [
+        adm
+        srv-nat
+      ];
+      description = ''
+        Redite
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+    reverseproxy = {
+      id = 151;
+      vlans = [
+        adm
+        srv-nat
+        (srv "185.230.79.42")
+      ];
+      description = ''
+        NextCloud du Crans
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+    two = {
+      id = 135;
+      vlans = [
+        adm
+        srv-nat
+      ];
+      description = ''
+        Une vm de test
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+    vaultwarden = {
+      id = 159;
+      vlans = [
+        adm
+        srv-nat
+      ];
+      description = ''
+        Vaultwarden
+      '';
+      public-ssh = "ssh-rsa TODOTODOTODOTODOTODOTODOTODO";
+    };    
+  };
+}
diff --git a/variables.nix b/variables.nix
new file mode 100644
index 0000000..00f475a
--- /dev/null
+++ b/variables.nix
@@ -0,0 +1,8 @@
+let
+  machines = import ./hosts.nix;
+in
+{
+
+  dns-recursif = machines.vms.romanesco.id;
+  
+}