diff --git a/flake.lock b/flake.lock
index 281ec32..defc7d7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -116,10 +116,27 @@
         "type": "github"
       }
     },
+    "nixpkgs_old": {
+      "locked": {
+        "lastModified": 1720535198,
+        "narHash": "sha256-zwVvxrdIzralnSbcpghA92tWu2DV2lwv89xZc8MTrbg=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "205fd4226592cc83fd4c0885a3e4c9c400efabb5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "artiq": "artiq",
         "mozilla-overlay": "mozilla-overlay",
+        "nixpkgs_old": "nixpkgs_old",
         "zynq-rs": "zynq-rs"
       }
     },
diff --git a/flake.nix b/flake.nix
index 18ebba9..9fea9d7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -6,12 +6,16 @@
   inputs.zynq-rs.url = git+https://git.m-labs.hk/m-labs/zynq-rs;
   inputs.zynq-rs.inputs.nixpkgs.follows = "artiq/nixpkgs";
 
-  outputs = { self, mozilla-overlay, zynq-rs, artiq }:
+  inputs.nixpkgs_old.url = "github:nixos/nixpkgs?ref=nixos-23.11";
+
+  outputs = { self, mozilla-overlay, zynq-rs, artiq, nixpkgs_old }:
   let
+    pkgs_old = import nixpkgs_old { system = "x86_64-linux";};
     pkgs = import artiq.inputs.nixpkgs { system = "x86_64-linux"; overlays = [ (import mozilla-overlay) ]; };
     zynqpkgs = zynq-rs.packages.x86_64-linux;
     artiqpkgs = artiq.packages.x86_64-linux;
-    llvmPackages_11 = zynq-rs.llvmPackages_11;
+    # llvmPackages_11 = zynq-rs.llvmPackages_11;
+    llvmPackages_11 = pkgs_old.llvmPackages_11;
 
     rust = zynq-rs.rust;
     rustPlatform = zynq-rs.rustPlatform;
@@ -381,7 +385,7 @@
         zynqpkgs.mkbootimage
         openocd  
         openssh rsync
-        (python3.withPackages(ps: (with artiqpkgs; [ migen migen-axi misoc artiq artiq-netboot ps.jsonschema ps.pyftdi ])))
+        (python3.withPackages(ps: (with artiqpkgs; [ migen migen-axi misoc artiq artiq-netboot ps.jsonschema ps.pyftdi ps.pillow ])))
         artiqpkgs.artiq
         artiqpkgs.vivado
         binutils-arm
diff --git a/local_run.sh b/local_run.sh
index a244e19..b39f98b 100755
--- a/local_run.sh
+++ b/local_run.sh
@@ -13,7 +13,7 @@ fi
 
 impure=0
 load_bitstream=1
-board_type="kasli_soc"
+board_type="zc706"
 fw_type="runtime"
 
 while getopts "ilb:t:f:" opt; do
@@ -36,7 +36,7 @@ done
 if [ -z "$board_host" ]; then
     case $board_type in
     kasli_soc) board_host="192.168.1.56";;
-    zc706) board_host="192.168.1.52";;
+    zc706) board_host="192.168.1.14";;
     *) echo "Unknown board type"; exit 1;;
     esac
 fi
@@ -58,4 +58,4 @@ else
         load_bitstream_cmd="-g $result_dir/top.bit"
     fi
     artiq_netboot $load_bitstream_cmd -f $result_dir/$fw_type.bin -b $board_host
-fi
\ No newline at end of file
+fi