pi4 stuffs

hosts/pi4/configuration.nix

@@ -29,6 +29,7 @@ in
       authorizedKeysFiles = [
         config.sops.secrets."ssh-keys-public/pi5".path
       ];
+      hostKeys = [ ];
     };
   };
 
@@ -41,16 +42,22 @@ in
     };
   };
 
-  environment.systemPackages = with pkgs; [
-    argononed
-    git
-    libraspberrypi
-    raspberrypi-eeprom
-    raspberrypifw
-    raspberrypiWirelessFirmware
-    raspberrypi-armstubs
-    vim
-  ];
+  environment = {
+    systemPackages = with pkgs; [
+      argononed
+      git
+      libraspberrypi
+      raspberrypi-eeprom
+      raspberrypifw
+      raspberrypiWirelessFirmware
+      raspberrypi-armstubs
+      vim
+    ];
+    etc = {
+      "ssh/ssh_host_ed25519_key".source = config.sops.secrets."pi4/sys-priv-key".path;
+      "ssh/ssh_host_ed25519_key.pub".source = config.sops.secrets."pi4/sys-public-key".path;
+    };
+  };
 
   users = {
     mutableUsers = false;