diff --git a/flake.lock b/flake.lock
index ce6440f..8a15ee8 100644
--- a/flake.lock
+++ b/flake.lock
@@ -6,14 +6,15 @@
         "home-manager": "home-manager",
         "nixpkgs": [
           "nixpkgs"
-        ]
+        ],
+        "systems": "systems"
       },
       "locked": {
-        "lastModified": 1689334118,
-        "narHash": "sha256-djk5AZv1yU84xlKFaVHqFWvH73U7kIRstXwUAnDJPsk=",
+        "lastModified": 1703433843,
+        "narHash": "sha256-nmtA4KqFboWxxoOAA6Y1okHbZh+HsXaMPFkYHsoDRDw=",
         "owner": "ryantm",
         "repo": "agenix",
-        "rev": "0d8c5325fc81daf00532e3e26c6752f7bcde1143",
+        "rev": "417caa847f9383e111d1397039c9d4337d024bf0",
         "type": "github"
       },
       "original": {
@@ -30,11 +31,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1673295039,
-        "narHash": "sha256-AsdYgE8/GPwcelGgrntlijMg4t3hLFJFCRF3tL5WVjA=",
+        "lastModified": 1700795494,
+        "narHash": "sha256-gzGLZSiOhf155FW7262kdHo2YDeugp3VuIFb4/GGng0=",
         "owner": "lnl7",
         "repo": "nix-darwin",
-        "rev": "87b9d090ad39b25b2400029c64825fc2a8868943",
+        "rev": "4b9b83d5a92e8c1fbfd8eb27eda375908c11ec4d",
         "type": "github"
       },
       "original": {
@@ -54,11 +55,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1688380630,
-        "narHash": "sha256-8ilApWVb1mAi4439zS3iFeIT0ODlbrifm/fegWwgHjA=",
+        "lastModified": 1701787589,
+        "narHash": "sha256-ce+oQR4Zq9VOsLoh9bZT8Ip9PaMLcjjBUHVPzW5d7Cw=",
         "owner": "numtide",
         "repo": "devshell",
-        "rev": "f9238ec3d75cefbb2b42a44948c4e8fb1ae9a205",
+        "rev": "44ddedcbcfc2d52a76b64fb6122f209881bd3e1e",
         "type": "github"
       },
       "original": {
@@ -75,11 +76,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1682203081,
-        "narHash": "sha256-kRL4ejWDhi0zph/FpebFYhzqlOBrk0Pl3dzGEKSAlEw=",
+        "lastModified": 1703113217,
+        "narHash": "sha256-7ulcXOk63TIT2lVDSExj7XzFx09LpdSAPtvgtM7yQPE=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "32d3e39c491e2f91152c84f8ad8b003420eab0a1",
+        "rev": "3bfaacf46133c037bb356193bd2f1765d9dc82c1",
         "type": "github"
       },
       "original": {
@@ -90,16 +91,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689503327,
-        "narHash": "sha256-qVwzYLA8oT2oWNDXO0A3bZHOhoPOihIB9T677+Hor1E=",
+        "lastModified": 1704295289,
+        "narHash": "sha256-9WZDRfpMqCYL6g/HNWVvXF0hxdaAgwgIGeLYiOhmes8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f64b9738da8e86195766147e9752c67fccee006c",
+        "rev": "b0b2c5445c64191fd8d0b31f2b1a34e45a64547d",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-23.05",
+        "ref": "nixos-23.11",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -109,7 +110,7 @@
         "agenix": "agenix",
         "devshell": "devshell",
         "nixpkgs": "nixpkgs",
-        "systems": "systems"
+        "systems": "systems_2"
       }
     },
     "systems": {
@@ -126,6 +127,21 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index d5eeb9d..e0a0361 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "Dev Setup";
 
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
 
     systems.url = "github:nix-systems/default";
 
@@ -44,6 +44,7 @@
           # Add additional packages you'd like to be available in your devshell
           # PATH here
           devshell.packages = with pkgs; [
+            jq
           ];
           commands = [
             {
diff --git a/python/erpnext.nix b/python/erpnext.nix
index 27f665a..3f45bd9 100644
--- a/python/erpnext.nix
+++ b/python/erpnext.nix
@@ -2,6 +2,7 @@
 , buildPythonPackage
 , fetchFromGitHub
 , pythonRelaxDepsHook
+, flit-core
 
 # Core dependencies
 , pycountry
@@ -34,9 +35,9 @@ buildPythonPackage rec {
     sha256 = erpnextSrcHash;
   };
 
-  format = "flit";
+  format = "pyproject";
 
-  nativeBuildInputs = [ pythonRelaxDepsHook ];
+  nativeBuildInputs = [ pythonRelaxDepsHook flit-core ];
   pythonRelaxDeps = [
     "pycountry"
     "rapidfuzz"
diff --git a/python/frappe.nix b/python/frappe.nix
index d8a2ffc..9cf6fb3 100644
--- a/python/frappe.nix
+++ b/python/frappe.nix
@@ -2,6 +2,7 @@
 , buildPythonPackage
 , pythonRelaxDepsHook
 , fetchFromGitHub
+, flit-core
 
 # Core dependencies
 , babel
@@ -96,9 +97,9 @@ buildPythonPackage rec {
     sha256 = frappeSrcHash;
   };
 
-  format = "flit";
+  format = "pyproject";
 
-  nativeBuildInputs = [ pythonRelaxDepsHook ];
+  nativeBuildInputs = [ pythonRelaxDepsHook flit-core ];
   pythonRelaxDeps = [
     "Babel"
     "beautifulsoup4"