remote-builds: Disable by default

It makes things slower and my server unresponsive sometimes.
Probably more work to be done but I don't feel like doing that now.

curacao/default.nix

@@ -4,9 +4,9 @@
     networking.hostName = "curacao";
   };
   imports = [
-    ./backup
+    # ./backup
     ./co2meter
-    ./dedup
+    # ./dedup
     ./disko.nix
     ./features.nix
     ./hardware.nix

curacao/disko.nix

@@ -159,10 +159,6 @@ in
                   mountpoint = "/mnt/rapido";
                   mountOptions = btrfs_args_ssd;
                   subvolumes = {
-                    archlinux = {
-                      mountpoint = "/mnt/old";
-                      mountOptions = btrfs_args_ssd;
-                    };
                     # Should be temporary, to make sure we can revert to Arch anytime
                     "home.nixos" = {
                       mountpoint = "/home";

os/remote-builds/default.nix

@@ -43,11 +43,11 @@ in
     };
     nix = {
       buildMachines = builtins.map (vivariumBuilder: vivariumBuilderDefault // vivariumBuilder) vivariumBuilders;
-      distributedBuilds = true;
+      distributedBuilds = false;
       settings = {
         builders-use-substitutes = true;
         trusted-public-keys = publicKeys;
-        substituters = builtins.map (builder: "${builder.protocol}://${builder.sshUser}@${builder.hostName}") config.nix.buildMachines;
+        trusted-substituters = builtins.map (builder: "${builder.protocol}://${builder.sshUser}@${builder.hostName}") config.nix.buildMachines;
       };
     };
   };