diff --git a/hydra/mcu.json b/hydra/mcu.json
index a140b33..207341e 100644
--- a/hydra/mcu.json
+++ b/hydra/mcu.json
@@ -15,7 +15,6 @@
             "mozillaOverlay": { "type": "git", "value": "https://github.com/mozilla/nixpkgs-mozilla.git", "emailresponsible": false },
             "nixScripts": { "type": "git", "value": "https://git.m-labs.hk/M-Labs/nix-scripts.git", "emailresponsible": false },
             "stabilizerSrc": { "type": "git", "value": "https://github.com/HarryMakes/stabilizer.git pre-mqtt 1", "emailresponsible": false },
-            "humpbackDdsSrc": { "type": "git", "value": "https://git.m-labs.hk/M-Labs/humpback-dds.git", "emailresponsible": false },
             "saymaMmcSrc": { "type": "git", "value": "https://github.com/sinara-hw/openMMC.git sayma-devel", "emailresponsible": false }
         }
     },
@@ -30,5 +29,17 @@
         "enableemail": false,
         "emailoverride": "",
         "keepnr": 10
+    },
+    "humpback-dds": {
+        "enabled": 1,
+        "type": 1,
+        "hidden": false,
+        "description": "Firmware for Humpback-DDS",
+        "flake": "git+https://git.m-labs.hk/M-Labs/humpback-dds.git",
+        "checkinterval": 300,
+        "schedulingshares": 10,
+        "enableemail": false,
+        "emailoverride": "",
+        "keepnr": 10
     }
 }
diff --git a/mcu/default.nix b/mcu/default.nix
index ca1c28f..264529b 100644
--- a/mcu/default.nix
+++ b/mcu/default.nix
@@ -41,7 +41,6 @@ let
 
         dontFixup = true;
       };
-  migen = (import ../artiq-fast/pkgs/python-deps.nix { inherit (pkgs) lib fetchgit fetchFromGitHub python3Packages; misoc-new = true; }).migen;
 in
   pkgs.lib.attrsets.mapAttrs'
     (name: value: pkgs.lib.attrsets.nameValuePair ("stabilizer-" + name)
@@ -77,16 +76,6 @@ in
       };
     } //
   {
-    humpback-dds = buildStm32Firmware {
-      name = "humpback-dds";
-      src = <humpbackDdsSrc>;
-      extraNativeBuildInputs = [
-        (pkgs.python3.withPackages(ps: [ migen ]))
-        pkgs.yosys
-        pkgs.nextpnr
-        pkgs.icestorm
-      ];
-    };
     # openMMC build system breaks if host compiler is not available, so do not use stdenvNoCC here
     sayma-mmc = pkgs.stdenv.mkDerivation {
       name = "sayma-mmc";