diff --git a/artiq-board-generated/artiq-board.nix b/artiq-board-generated/artiq-board.nix
index 710c84e..3d59e71 100644
--- a/artiq-board-generated/artiq-board.nix
+++ b/artiq-board-generated/artiq-board.nix
@@ -9,7 +9,7 @@ let
   artiqSrc = import (artiq-fast + "/pkgs/artiq-src.nix") { fetchgit = pkgs.fetchgit; };
   artiqpkgs = import artiq-fast { inherit pkgs; };
   pythonEnv = pkgs.python3.withPackages (ps: with ps; [
-    jinja2 jsonschema numpy artiqpkgs.migen artiqpkgs.microscope artiqpkgs.misoc artiqpkgs.jesd204b artiqpkgs.artiq
+    jinja2 numpy artiqpkgs.migen artiqpkgs.microscope artiqpkgs.misoc artiqpkgs.jesd204b artiqpkgs.artiq
   ]);
   fetchcargo = import (artiq-fast + "/fetchcargo.nix") {
     inherit (pkgs) stdenv cacert git;
diff --git a/artiq-fast/conda/artiq.nix b/artiq-fast/conda/artiq.nix
index ab21777..4b07e00 100644
--- a/artiq-fast/conda/artiq.nix
+++ b/artiq-fast/conda/artiq.nix
@@ -21,6 +21,7 @@ let
       "pygit2"
       "python-levenshtein"
       "sipyco"
+      "jsonschema"
     ];
     extraYaml =
     ''
diff --git a/artiq-fast/pkgs/artiq.nix b/artiq-fast/pkgs/artiq.nix
index 78be5a0..49d0dc2 100644
--- a/artiq-fast/pkgs/artiq.nix
+++ b/artiq-fast/pkgs/artiq.nix
@@ -11,7 +11,7 @@ python3Packages.buildPythonPackage rec {
   propagatedBuildInputs = [ binutils-or1k llvm-or1k llvmlite-artiq ]
     ++ (lib.lists.optionals (lib.strings.versionAtLeast version "6.0") [ binutils-arm ])
     ++ (with pythonDeps; [ sipyco pyqtgraph-qt5 pythonparser ])
-    ++ (with python3Packages; [ pygit2 numpy dateutil scipy prettytable pyserial python-Levenshtein h5py pyqt5 ])
+    ++ (with python3Packages; [ pygit2 numpy dateutil jsonschema scipy prettytable pyserial python-Levenshtein h5py pyqt5 ])
     ++ [(if (lib.strings.versionAtLeast version "6.0") then pythonDeps.qasync else python3Packages.quamash)];
 
   dontWrapQtApps = true;
diff --git a/artiq-fast/shell-dev.nix b/artiq-fast/shell-dev.nix
index 6ef516a..7fd0519 100644
--- a/artiq-fast/shell-dev.nix
+++ b/artiq-fast/shell-dev.nix
@@ -8,7 +8,7 @@ in
     buildInputs = [
       vivado
       pkgs.gnumake
-      (pkgs.python3.withPackages(ps: (with ps; [ jinja2 jsonschema numpy paramiko ]) ++ (with artiqpkgs; [ migen microscope misoc jesd204b migen-axi artiq ])))
+      (pkgs.python3.withPackages(ps: (with ps; [ jinja2 numpy paramiko ]) ++ (with artiqpkgs; [ migen microscope misoc jesd204b migen-axi artiq ])))
       artiqpkgs.cargo
       artiqpkgs.rustc
       artiqpkgs.binutils-or1k
diff --git a/artiq-full.nix b/artiq-full.nix
index 57b44cf..77eb8d4 100644
--- a/artiq-full.nix
+++ b/artiq-full.nix
@@ -78,10 +78,6 @@ let
 
     let
       artiq-fast = import ${if a6p then "./board-generated" else "."}/fast { inherit pkgs; };
-      ddbDeps = [
-        artiq-fast.artiq
-        (pkgs.python3.withPackages (ps: [ ps.jsonschema ]))
-      ];
 
       kasliVariants = [${builtins.concatStringsSep " " (
         builtins.map (variant: "\"${variant}\"") kasliVariants
@@ -135,7 +131,7 @@ let
           ) {
             "device-db-\''${target}-\''${variant}" = pkgs.stdenv.mkDerivation {
               name = "device-db-\''${target}-\''${variant}";
-              buildInputs = ddbDeps;
+              buildInputs = artiq-fast.artiq;
               phases = [ "buildPhase" ];
               buildPhase = "
                 mkdir \$out
@@ -196,7 +192,7 @@ let
         (system: crates: pkgs.lib.attrsets.nameValuePair ("device-db-" + system)
         (pkgs.stdenv.mkDerivation {
           name = "device-db-\''${system}";
-          buildInputs = ddbDeps;
+          buildInputs = artiq-fast.artiq;
           phases = [ "buildPhase" ];
           buildPhase = "
             mkdir \$out