diff --git a/ops/machines.nix b/ops/machines.nix
new file mode 100644
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--- /dev/null
+++ b/ops/machines.nix
@@ -0,0 +1,53 @@
+# Top-level file aggregating all machines managed from hscloud.
+#
+# This allows to have a common attrset of machines that can be deployed
+# in the same way.
+#
+# Currently building/deployment is still done in a half-assed way:
+#
+#    machine=edge01.waw.bgp.wtf
+#    nix-build -A 'ops.machines."'$machine'"'.toplevel
+#
+# This spits out a derivation path that correponds to the built config of that
+# machine. To deploy it:
+#
+#    d=/nix/store/nkdfoobarbazl0ybhazkmeyaylmaoqcr-nixos-system-edge01-20.09pre-git
+#    nix-copy-closure --to root@$machine $d
+#    ssh root@$machine $d/bin/switch-to-configuration
+#
+# TODO(q3k): merge this with //cluster/clustercfg - this should be unified!
+
+{ hscloud, pkgs, ... }:
+
+let
+  # Stopgap measure to import //cluster/nix machine definitions into new
+  # //ops/machines infrastructure.
+  # TODO(q3k): inject defs-cluster-k0.nix / defs-machines.nix content via
+  # nixos options instead of having module definitions loading it themselves,
+  # deduplicate list of machines below with defs-machines.nix somehow.
+  mkClusterMachine = name: pkgs.nixos ({ config, pkgs, ... }: {
+    # The hostname is used by //cluster/nix machinery to load the appropriate
+    # config from defs-machines into defs-cluster-k0.
+    networking.hostName = name;
+    imports = [
+      ../cluster/nix/modules/base.nix
+      ../cluster/nix/modules/kubernetes.nix
+    ];
+  });
+
+  mkMachine = paths: pkgs.nixos ({ config, pkgs, ... }: {
+    imports = paths;
+  });
+
+in {
+  "bc01n01.hswaw.net" = mkClusterMachine "bc01n01";
+  "bc01n02.hswaw.net" = mkClusterMachine "bc01n02";
+  "bc01n03.hswaw.net" = mkClusterMachine "bc01n03";
+  "dcr01s22.hswaw.net" = mkClusterMachine "dcr01s22";
+  "dcr01s24.hswaw.net" = mkClusterMachine "dcr01s24";
+
+  "edge01.waw.bgp.wtf" = mkMachine [
+    ../bgpwtf/machines/edge01.waw.bgp.wtf.nix
+    ../bgpwtf/machines/edge01.waw.bgp.wtf-hardware.nix
+  ];
+}