diff --git a/flake.lock b/flake.lock
index f14e67e..6caf602 100644
--- a/flake.lock
+++ b/flake.lock
@@ -200,11 +200,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1738453229,
-        "narHash": "sha256-7H9XgNiGLKN1G1CgRh0vUL4AheZSYzPm+zmZ7vxbJdo=",
+        "lastModified": 1741352980,
+        "narHash": "sha256-+u2UunDA4Cl5Fci3m7S643HzKmIDAe+fiXrLqYsR2fs=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "32ea77a06711b758da0ad9bd6a844c5740a87abd",
+        "rev": "f4330d22f1c5d2ba72d3d22df5597d123fdb60a9",
         "type": "github"
       },
       "original": {
@@ -437,11 +437,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1741955947,
-        "narHash": "sha256-2lbURKclgKqBNm7hVRtWh0A7NrdsibD0EaWhahUVhhY=",
+        "lastModified": 1742530487,
+        "narHash": "sha256-yjBjRn294NpPagPAQCio20X5BzBXiOoz2+xF3/YmEkU=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "4e12151c9e014e2449e0beca2c0e9534b96a26b4",
+        "rev": "d61711497be9ad6a6633aaf203b038b5a970621f",
         "type": "github"
       },
       "original": {
@@ -550,11 +550,11 @@
         "xwayland-satellite-unstable": "xwayland-satellite-unstable"
       },
       "locked": {
-        "lastModified": 1741985426,
-        "narHash": "sha256-qtvcOFwWVQqKyjtVYXpC8Mp/cP/xc/Na6L4UXyHyJHA=",
+        "lastModified": 1742567165,
+        "narHash": "sha256-yhGDoiF5hOvphi3R0Wm7RVbFQMi2eFlfmOcCRchqmlw=",
         "owner": "sodiboo",
         "repo": "niri-flake",
-        "rev": "93a1359e5625bb7724298e92c4cddf0e8022dc00",
+        "rev": "314180820701b755731d7900ff561414a55c17ae",
         "type": "github"
       },
       "original": {
@@ -583,11 +583,11 @@
     "niri-unstable": {
       "flake": false,
       "locked": {
-        "lastModified": 1741982253,
-        "narHash": "sha256-pQYos0sgmAlf7VFZHB4FZMu0CACTLLARS++H64NRB1I=",
+        "lastModified": 1742542657,
+        "narHash": "sha256-lUz/YftLDTZvsgbzC2bppHLbflsS/NuaNZXp3UvvYgw=",
         "owner": "YaLTeR",
         "repo": "niri",
-        "rev": "f6aa8c17937fadd1da3c8f2f080ea402ae17da87",
+        "rev": "fd1f43673cf4d1e84d9da67e294c040934034eda",
         "type": "github"
       },
       "original": {
@@ -606,11 +606,11 @@
         "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1739259093,
-        "narHash": "sha256-pltdsmg4oh1AVNrMbKUgx1VPbndVdCGID5mrBmRIdVI=",
+        "lastModified": 1742568248,
+        "narHash": "sha256-DLy7a13K73Se+UaRdFJa5QfPmnFvO2yoeg02c8ioR4k=",
         "owner": "nix-community",
         "repo": "nixd",
-        "rev": "065dcb4cb2f8269d6d15d2b2491a79cff47f9550",
+        "rev": "590eccaa079929daa58316f5386dbcc150e2d50d",
         "type": "github"
       },
       "original": {
@@ -664,11 +664,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1741862977,
-        "narHash": "sha256-prZ0M8vE/ghRGGZcflvxCu40ObKaB+ikn74/xQoNrGQ=",
+        "lastModified": 1742512142,
+        "narHash": "sha256-8XfURTDxOm6+33swQJu/hx6xw1Tznl8vJJN5HwVqckg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "cdd2ef009676ac92b715ff26630164bb88fec4e0",
+        "rev": "7105ae3957700a9646cc4b766f5815b23ed0c682",
         "type": "github"
       },
       "original": {
@@ -680,11 +680,11 @@
     },
     "nixpkgs-stable_2": {
       "locked": {
-        "lastModified": 1741862977,
-        "narHash": "sha256-prZ0M8vE/ghRGGZcflvxCu40ObKaB+ikn74/xQoNrGQ=",
+        "lastModified": 1742512142,
+        "narHash": "sha256-8XfURTDxOm6+33swQJu/hx6xw1Tznl8vJJN5HwVqckg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "cdd2ef009676ac92b715ff26630164bb88fec4e0",
+        "rev": "7105ae3957700a9646cc4b766f5815b23ed0c682",
         "type": "github"
       },
       "original": {
@@ -712,11 +712,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1741851582,
-        "narHash": "sha256-cPfs8qMccim2RBgtKGF+x9IBCduRvd/N5F4nYpU0TVE=",
+        "lastModified": 1742422364,
+        "narHash": "sha256-mNqIplmEohk5jRkqYqG19GA8MbQ/D4gQSK0Mu4LvfRQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6607cf789e541e7873d40d3a8f7815ea92204f32",
+        "rev": "a84ebe20c6bc2ecbcfb000a50776219f48d134cc",
         "type": "github"
       },
       "original": {
@@ -728,11 +728,11 @@
     },
     "nixpkgs_4": {
       "locked": {
-        "lastModified": 1741851582,
-        "narHash": "sha256-cPfs8qMccim2RBgtKGF+x9IBCduRvd/N5F4nYpU0TVE=",
+        "lastModified": 1742422364,
+        "narHash": "sha256-mNqIplmEohk5jRkqYqG19GA8MbQ/D4gQSK0Mu4LvfRQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6607cf789e541e7873d40d3a8f7815ea92204f32",
+        "rev": "a84ebe20c6bc2ecbcfb000a50776219f48d134cc",
         "type": "github"
       },
       "original": {
@@ -744,11 +744,11 @@
     },
     "nixpkgs_5": {
       "locked": {
-        "lastModified": 1741851582,
-        "narHash": "sha256-cPfs8qMccim2RBgtKGF+x9IBCduRvd/N5F4nYpU0TVE=",
+        "lastModified": 1742422364,
+        "narHash": "sha256-mNqIplmEohk5jRkqYqG19GA8MbQ/D4gQSK0Mu4LvfRQ=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "6607cf789e541e7873d40d3a8f7815ea92204f32",
+        "rev": "a84ebe20c6bc2ecbcfb000a50776219f48d134cc",
         "type": "github"
       },
       "original": {
@@ -783,11 +783,11 @@
         "nuschtosSearch": "nuschtosSearch"
       },
       "locked": {
-        "lastModified": 1741709061,
-        "narHash": "sha256-G1YTksB0CnVhpU1gEmvO3ugPS5CAmUpm5UtTIUIPnEI=",
+        "lastModified": 1742559284,
+        "narHash": "sha256-PSSjCCqpJPkCagkkdLODBVVonGxgwU5dN2CYlFPNVNw=",
         "owner": "nix-community",
         "repo": "nixvim",
-        "rev": "3a3abf11700f76738d8ad9d15054ceaf182d2974",
+        "rev": "c980271267ef146a6c30394c611a97e077471cf2",
         "type": "github"
       },
       "original": {
@@ -803,11 +803,11 @@
         "treefmt-nix": "treefmt-nix_2"
       },
       "locked": {
-        "lastModified": 1742011808,
-        "narHash": "sha256-gwUhr8bmCzXvwZ6DBmQl7YkYWYakGugMfG6Mg3Y4vc0=",
+        "lastModified": 1742569316,
+        "narHash": "sha256-eYigu2oVF87d/VG9GX39JPWfOhrRGlI2JrYkPVqyZuk=",
         "owner": "nix-community",
         "repo": "NUR",
-        "rev": "ac44f81220a373c823ad72b57eb1371fe65c9ce4",
+        "rev": "62626540151e6cec8e1d3a6c77d48a1a06d3ba16",
         "type": "github"
       },
       "original": {
@@ -849,11 +849,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1738508923,
-        "narHash": "sha256-4DaDrQDAIxlWhTjH6h/+xfG05jt3qDZrZE/7zDLQaS4=",
+        "lastModified": 1741886583,
+        "narHash": "sha256-sScfYKtxp3CYv5fJcHQDvQjqBL+tPNQqS9yf9Putd+s=",
         "owner": "NuschtOS",
         "repo": "search",
-        "rev": "86e2038290859006e05ca7201425ea5b5de4aecb",
+        "rev": "2974bc5fa3441a319fba943f3ca41f7dcd1a1467",
         "type": "github"
       },
       "original": {
@@ -925,11 +925,11 @@
         "tinted-zed": "tinted-zed"
       },
       "locked": {
-        "lastModified": 1741976991,
-        "narHash": "sha256-74Q3Kpzde+S3pWaZihNFMjCn8lo4wmDVmg+Uvw8YLLQ=",
+        "lastModified": 1742496983,
+        "narHash": "sha256-UpJrU0DEhNLVZwL/RPVOEUHCG6iDOVDoYelkmgS4V38=",
         "owner": "danth",
         "repo": "stylix",
-        "rev": "e43eb4e2a7dfbd96454df2b1c9418299b4373773",
+        "rev": "7e9906679d384472849272e5a5eef7adbdb1d87f",
         "type": "github"
       },
       "original": {
@@ -1149,11 +1149,11 @@
         "nixpkgs": "nixpkgs_6"
       },
       "locked": {
-        "lastModified": 1739829690,
-        "narHash": "sha256-mL1szCeIsjh6Khn3nH2cYtwO5YXG6gBiTw1A30iGeDU=",
+        "lastModified": 1742370146,
+        "narHash": "sha256-XRE8hL4vKIQyVMDXykFh4ceo3KSpuJF3ts8GKwh5bIU=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "3d0579f5cc93436052d94b73925b48973a104204",
+        "rev": "adc195eef5da3606891cedf80c0d9ce2d3190808",
         "type": "github"
       },
       "original": {
@@ -1182,11 +1182,11 @@
     "xwayland-satellite-unstable": {
       "flake": false,
       "locked": {
-        "lastModified": 1741910413,
-        "narHash": "sha256-z9bvteu0rf+xmUDj4VifN06XAFJZQGRSOvdN7rn/oDs=",
+        "lastModified": 1742475924,
+        "narHash": "sha256-xe3tfHp1aisnUVrCbn1axwpeJzcrSOvQNn1bZt6k5DM=",
         "owner": "Supreeeme",
         "repo": "xwayland-satellite",
-        "rev": "0325cb1f48a292d873a6844772cca00251cbf945",
+        "rev": "1d98ee089c8bad414a346028a7a0f539ad7cfb9d",
         "type": "github"
       },
       "original": {
diff --git a/home/programs/study/default.nix b/home/programs/study/default.nix
index 9d673fd..6fb6fae 100644
--- a/home/programs/study/default.nix
+++ b/home/programs/study/default.nix
@@ -1,7 +1,7 @@
-{ inputs, pkgs, ... }:
+{ pkgs, ... }:
 {
   home.packages = with pkgs; [
     pspp
-    inputs.nixpkgs-stable.legacyPackages.${pkgs.system}.zotero
+    zotero
   ];
 }
diff --git a/home/tweaks/wallpaper.nix b/home/tweaks/wallpaper.nix
index 3d60033..d2c04dc 100644
--- a/home/tweaks/wallpaper.nix
+++ b/home/tweaks/wallpaper.nix
@@ -60,5 +60,11 @@
       sha256 = "02q0wd2xpyjfiifmrsf6sg1ja3zlb9514g98w156f7jdpw2c9ppb";
       convertMethod = "gonord";
     }
+    {
+      name = "zzzzoka-gbc.jpg";
+      url = "https://i.imgur.com/qE6Pr45.jpg";
+      sha256 = "1li5ypdvlvdpihiplf5mjj0lvf9gbcwyjslpxgla6wz0fzrwnvgi";
+      convertMethod = "gonord";
+    }
   ];
 }