diff --git a/docs/deploying.md b/docs/deploying.md
index 20af975..976d075 100644
--- a/docs/deploying.md
+++ b/docs/deploying.md
@@ -10,13 +10,19 @@ Then, run `deploy-rs` with the hostname of the server you want to deploy:
 For nachtigall.pub.solar:
 
 ```
-deploy --targets '.#nachtigall' --magic-rollback false --auto-rollback false
+deploy --targets '.#nachtigall' --magic-rollback false --auto-rollback false --keep-result --result-path ./results
 ```
 
 For flora-6.pub.solar:
 
 ```
-deploy --targets '.#flora-6' --magic-rollback false --auto-rollback false
+deploy --targets '.#flora-6' --magic-rollback false --auto-rollback false --keep-result --result-path ./results
+```
+
+For metronom.pub.solar (aarch64-linux):
+
+```
+deploy --targets '.#metronom' --magic-rollback false --auto-rollback false --keep-result --result-path ./results --remote-build
 ```
 
 Usually we skip all rollback functionality, but if you want to deploy a change
@@ -28,6 +34,11 @@ deployment, add the flag `--skip-checks` at the end of the command.
 `--dry-activate` can be used to only put all files in place without switching,
 to enable switching to the new config quickly at a later moment.
 
+We use `--keep-result --result-path ./results` to keep the last `result`
+symlink of each `deploy` from being garbage collected. That way, we keep builds
+cached in the Nix store. This is optional and both flags can be removed if disk
+space is a scarce resource on your machine.
+
 You'll need to have SSH Access to the boxes to be able to run `deploy`.
 
 ### Getting SSH access
diff --git a/lib/deploy.nix b/lib/deploy.nix
index 27453bd..f94c83e 100644
--- a/lib/deploy.nix
+++ b/lib/deploy.nix
@@ -51,23 +51,30 @@ in
     */
     lib.recursiveUpdate (lib.mapAttrs (_: c: {
       hostname = getFqdn c;
-      profiles.system = let
-        system = c.pkgs.system;
+      profiles.system =
+        let
+          system = c.pkgs.system;
 
-        # Unmodified nixpkgs
-        pkgs = import inputs.nixpkgs { inherit system; };
+          # Unmodified nixpkgs
+          pkgs = import inputs.nixpkgs { inherit system; };
 
-        # nixpkgs with deploy-rs overlay but force the nixpkgs package
-        deployPkgs = import inputs.nixpkgs {
-          inherit system;
-          overlays = [
-            inputs.deploy-rs.overlay # or deploy-rs.overlays.default
-            (self: super: { deploy-rs = { inherit (pkgs) deploy-rs; lib = super.deploy-rs.lib; }; })
-          ];
+          # nixpkgs with deploy-rs overlay but force the nixpkgs package
+          deployPkgs = import inputs.nixpkgs {
+            inherit system;
+            overlays = [
+              inputs.deploy-rs.overlay # or deploy-rs.overlays.default
+              (self: super: {
+                deploy-rs = {
+                  inherit (pkgs) deploy-rs;
+                  lib = super.deploy-rs.lib;
+                };
+              })
+            ];
+          };
+        in
+        {
+          user = "root";
+          path = deployPkgs.deploy-rs.lib.activate.nixos c;
         };
-      in {
-        user = "root";
-        path = deployPkgs.deploy-rs.lib.activate.nixos c;
-      };
     }) systemConfigurations) extraConfig;
 }