diff --git a/.sops.yaml b/.sops.yaml
index b93a6e2..d72a625 100644
--- a/.sops.yaml
+++ b/.sops.yaml
@@ -4,6 +4,7 @@ keys:
   - &monolith-ssh age1ecyynwv93lfu7crjjp8l47defv07quzfzaktwurpep7jc9eha5pscg7lrw
   - &double-rainbow-ssh age1026d4c8nqyapcsy4jz57szt6zw3ejcgv3ecyvz0s89t7w7z964fqdqv52h
   - &phantom-ssh age1m4mqcd2kmuhfr8a22rvh02c68jkakhdfmuqgtusuv0czk4jvna7sz79p3y
+  - &stonehenge-ssh age13y65zemwlfnf5pszspeh87utv5jrfm35varxjdsh78xhfhs7la3scm9l9g
 
 creation_rules:
   - path_regex: secrets/[^/]+\.(yaml|json|env|ini|gpg)$
@@ -35,3 +36,10 @@ creation_rules:
       age:
       - *lelgenio-ssh
       - *phantom-ssh
+  - path_regex: secrets/stonehenge/[^/]+\.(yaml|json|env|ini|gpg)$
+    key_groups:
+    - pgp:
+      - *lelgenio-gpg
+      age:
+      - *lelgenio-ssh
+      - *stonehenge-ssh
diff --git a/hosts/stonehenge/default.nix b/hosts/stonehenge/default.nix
index 2717816..3c80bd4 100644
--- a/hosts/stonehenge/default.nix
+++ b/hosts/stonehenge/default.nix
@@ -8,6 +8,7 @@
   imports = [
     # Include the results of the hardware scan.
     ./hardware-configuration.nix
+    ./gitlab-runner.nix
   ];
 
   # Bootloader.
@@ -92,6 +93,8 @@
     ];
   };
 
+  security.sudo.wheelNeedsPassword = false;
+
   # Install firefox.
   programs.firefox.enable = true;
 
diff --git a/hosts/stonehenge/gitlab-runner.nix b/hosts/stonehenge/gitlab-runner.nix
new file mode 100644
index 0000000..65498fc
--- /dev/null
+++ b/hosts/stonehenge/gitlab-runner.nix
@@ -0,0 +1,36 @@
+{
+  config,
+  pkgs,
+  ...
+}:
+let
+  inherit (pkgs.callPackage ../../system/gitlab-runner.nix { }) mkNixRunnerFull;
+in
+{
+  boot.kernel.sysctl."net.ipv4.ip_forward" = true;
+  virtualisation.docker.enable = true;
+  services.gitlab-runner = {
+    enable = true;
+    settings.concurrent = 4;
+    services = {
+      wopus-gitlab-nix = mkNixRunnerFull {
+        authenticationTokenConfigFile = config.sops.secrets."gitlab-runners/wopus-gitlab-nix".path;
+        # nixCacheSshPrivateKeyPath = config.sops.secrets."gitlab-runners/wopus-ssh-nix-cache-pk".path;
+        # nixCacheSshPublicKeyPath = config.sops.secrets."gitlab-runners/wopus-ssh-nix-cache-pub".path;
+      };
+    };
+  };
+  systemd.services.gitlab-runner.serviceConfig.Nice = 10;
+
+  sops.secrets = {
+    "gitlab-runners/wopus-gitlab-nix" = {
+      sopsFile = ../../secrets/stonehenge/default.yaml;
+    };
+    "gitlab-runners/wopus-ssh-nix-cache-pk" = {
+      sopsFile = ../../secrets/stonehenge/default.yaml;
+    };
+    "gitlab-runners/wopus-ssh-nix-cache-pub" = {
+      sopsFile = ../../secrets/stonehenge/default.yaml;
+    };
+  };
+}
diff --git a/secrets/stonehenge/default.yaml b/secrets/stonehenge/default.yaml
new file mode 100644
index 0000000..b8310ab
--- /dev/null
+++ b/secrets/stonehenge/default.yaml
@@ -0,0 +1,44 @@
+gitlab-runners:
+    wopus-gitlab-nix: ENC[AES256_GCM,data:u+FYWx3yluA+zFk8VV7RB4TW1AP81K8Ntgd7QDHwb2w0bzQH7URmfF1PrQgZGu/r5Q4zOFgmyUkL6EML9KFFu+3QpilIOTXitiEoi/McOn0DnAOTLhW1Fbg42jKd3gTU9OyLDijlQs3ktyRRSg+1TIEsYNc=,iv:LjRyav0YVKtG79roC8KRS99cVVfu8IJRpAQ9w79PFa0=,tag:K2rjIn823sER+zHezFyAZw==,type:str]
+    wopus-ssh-nix-cache-pk: ENC[AES256_GCM,data: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,iv:AXNYaZS6fGz/Jr2zNhvmKOYKj010wtwcatItB8hRs+c=,tag:DixvP6ZaqX9l8Z8KegkvUw==,type:str]
+    wopus-ssh-nix-cache-pub: ENC[AES256_GCM,data:5G+qIs/J8mwZxGyWkK0nts9E+iqbCe8Or4C4+HHuSr3dyJTmKxmA3a+DpxmbyQ0IKjKQgiz+uJbbRGR7ptzmJr7JvpNhaJO2/CR3MKvsoCpmgynenO2QIqsEidU1h1gqMV6OEDI3pDY3OE6K2M8D2jdYLqMXo5RRa7emEQhXhdQZ98OFgVrLFtrB72Fi/rTJE/tP,iv:JAopM5dwItYl68GDAQublg+C1S0Md3S3G/7GJ11azxQ=,tag:WAqEju2azXgerpIBrk+krw==,type:str]
+sops:
+    age:
+        - recipient: age1zrgu7w8059xydagm60phnffghvfe9h2ca58cx8qwagqpyfuvs9fqw79c8h
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBXWXZkSWUwZ0t0ekhBckxS
+            M0lIQ1FpWkY2dXhTVmZuYjJxeXhQSW85Ulg0Cm9GV1BqS29wU2FkaEVzazcwbCs1
+            Zy9tV0ZxcFBwbFFaMzRwUWFHWUZadDAKLS0tIFdoMkVkZitjNmJhTUVMUjBQdjdi
+            TjFMZnZDelY2NWtwd1dETFUrUE44eGsKdRVF1QWlhO3obls8Fm+PSs/yzJOUbQ80
+            GoWMqeD8qPVhO99Cy9DT0GWOk3DJQNQ55I7w6ctrhJ3XuZHzTyAqlg==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age13y65zemwlfnf5pszspeh87utv5jrfm35varxjdsh78xhfhs7la3scm9l9g
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB5TEIyU1dtK0ZWQmJLY0Z0
+            cThwbTdmUkF5ZGgraFBSMjZRUmpiSkxZUFdJCnhBTDd2THlmczk1SE1qZ2VnRk5a
+            ejZGY2U1L1IxZ3BrdURNTURwRUJCaWsKLS0tIFdEUW5Kcmw5eGE5cFJYejRXTDYr
+            dC9MaDUvcG96djVFU1Fpb1NKZThNaUEKkxPikf5+veTmrXHU4sxtJO/LsQ3YB4j+
+            vkIWWw4qV8zRrh+XxFXrFUURhDp11m/nlpzPERxjNzRs13VS2tXTrw==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2026-01-01T21:41:02Z"
+    mac: ENC[AES256_GCM,data:VItjDJ1zVRc8qGty9651o1ZlHjPne98JrKeUT/2WAElK+A29IY+UVIlUtooOwwvSPC7kphoGfFSYK5+4emd4EyVbWovPyeYp04tV5/JGdj/3cVaSiXCD3HPM/v2BeiDy3aDAkaqeIg54PueddiSVU0snobCWB2/+DXU8Xly/+sM=,iv:x/3nXue1HkeZt9hKqk2Y9ciU2GK0Bbcp5zcJQdAiO58=,tag:OCKaxQQfTgfVvzYgqaqvsA==,type:str]
+    pgp:
+        - created_at: "2026-01-01T21:36:47Z"
+          enc: |-
+            -----BEGIN PGP MESSAGE-----
+
+            hQEMAzy6JxafzLr5AQf+I8mDQ00zcPxP4GJh5ldaVJSZ95OF7Pk0TmNmtQLaBHqE
+            Gj8MPa3CE8MyZBtFrWjt52yKcg0wIznd1Uo0HGteW2cMxGezCqioTIqNgXSQ+h/V
+            T751kH0MBOVscJUoEx3D7sdCsvk70WwnN2FdkFpA1NIDqsoHCT4MXGzcAMVTv/+K
+            Y630VFguV0Fcmy16Kry1EFVDSorio6BxwBnK2PG/uAQOEjTA8fLTVutc+h7glqjU
+            iiNPsv6MtB5gTp/Q+IPHgGmPpyCP2vN7i0ArVNFRQ2tf9tIeo/5FfgmWCH8CTcr5
+            deK/UPwJ3u2o4OsVLQryx9TBVnBcFG31f+/kwIG4CNJcAZxl1w0DbS+zHtIu1Bo5
+            oRAxj00EeM8Vp7FFA70Z38HSzFyvawomSrtzRNhRPoLOPemG59WH4621BL1HC9Rz
+            8lhSEVRdw/BjmtNRRcLsw9NrAjGsHkkhkEluY1U=
+            =bhCO
+            -----END PGP MESSAGE-----
+          fp: 0FECE8316E74BA6F44EFC21A2F8F21CE8721456B
+    unencrypted_suffix: _unencrypted
+    version: 3.11.0