diff --git a/config/hosts/imxyy-nix/home.nix b/config/hosts/imxyy-nix/home.nix
index d91f6eb..40775d4 100644
--- a/config/hosts/imxyy-nix/home.nix
+++ b/config/hosts/imxyy-nix/home.nix
@@ -16,7 +16,7 @@
 
       anki
 
-      ayugram-desktop
+      working.ayugram-desktop
       signal-desktop
       element-desktop
       fractal
@@ -162,4 +162,4 @@
       ];
     };
   };
-}
+}
\ No newline at end of file
diff --git a/flake.lock b/flake.lock
index c6f2218..d374df6 100644
--- a/flake.lock
+++ b/flake.lock
@@ -106,11 +106,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761906071,
-        "narHash": "sha256-uq0X0KRzZkKGlkU1ARM+LWCAVvSYJZtTMpuzMO6LXRs=",
+        "lastModified": 1763110997,
+        "narHash": "sha256-S2vF+3D/9vna3/vBV7LHiGUbp+ltPsQhvccIyim6VQg=",
         "owner": "catppuccin",
         "repo": "nix",
-        "rev": "fd1bc7b1af0a576edb13c166c4b1f7b5c7555a73",
+        "rev": "e6928cdd3dd20636326c2756d2bc8fd1cd825768",
         "type": "github"
       },
       "original": {
@@ -128,11 +128,11 @@
         "rust-overlay": "rust-overlay"
       },
       "locked": {
-        "lastModified": 1761827347,
-        "narHash": "sha256-tIrTFSntAyXVrQE9GnauXzQxEZJCZA9TEp4jAENsgwA=",
+        "lastModified": 1762966292,
+        "narHash": "sha256-WJtAHPDOJRd/ecQJBFyuyqBIbDG0ocdQuBGPBRRsgew=",
         "owner": "chaotic-cx",
         "repo": "nyx",
-        "rev": "0c234b99a8606b482d6644e1f2d26d41985fb85c",
+        "rev": "037d0bb4a6b51609e66fab2221d3bca2d3b5fa3b",
         "type": "github"
       },
       "original": {
@@ -149,11 +149,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761698061,
-        "narHash": "sha256-iyvYHJn9K+cnW2+icxGA3qm69W8RpCz1v8+rb2U/KzQ=",
+        "lastModified": 1763015923,
+        "narHash": "sha256-IJGWKVxztJT/NsonaRjWm5OaW07Rg+kBr6NMhfQiJzM=",
         "owner": "Bali10050",
         "repo": "Darkly",
-        "rev": "b9260d390fb8c673a37500f567b11e3b297216cc",
+        "rev": "5a323b775695f889b495d9f499eceb38ed538b42",
         "type": "github"
       },
       "original": {
@@ -192,11 +192,11 @@
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1761979010,
-        "narHash": "sha256-isqMvjTk3jdTHN6KA/BWQvOSVe7O35OQKAZNtLK76OY=",
+        "lastModified": 1763150544,
+        "narHash": "sha256-Vnps7OKuHLqOTBRnspMhjHQ11mKyfUlhHEZ2anTEAp8=",
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "3107255abfe4f2d1c3eee7a3e2f5a5eb6f2200fe",
+        "rev": "6479b325536a1c87dedbc67d5ee4cb42ce014438",
         "type": "github"
       },
       "original": {
@@ -240,11 +240,11 @@
     "flake-compat_2": {
       "flake": false,
       "locked": {
-        "lastModified": 1747046372,
-        "narHash": "sha256-CIVLLkVgvHYbgI2UpXvIIBJ12HWgX+fjA8Xf8PUmqCY=",
+        "lastModified": 1761588595,
+        "narHash": "sha256-XKUZz9zewJNUj46b4AJdiRZJAvSZ0Dqj2BNfXvFlJC4=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "9100a0f413b0c601e0533d1d94ffd501ce2e7885",
+        "rev": "f387cd2afec9419c8ee37694406ca490c3f34ee5",
         "type": "github"
       },
       "original": {
@@ -466,8 +466,8 @@
       },
       "original": {
         "owner": "imxyy1soope1",
-        "ref": "master",
         "repo": "go-musicfox",
+        "rev": "938c4d6bb2a318bc6251f3b11fa8cf54d29b4419",
         "type": "github"
       }
     },
@@ -500,11 +500,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761770832,
-        "narHash": "sha256-IQIWG6kHxnUpx5KEb9r0BROL3/R6UQ/30aO2oHncBA8=",
+        "lastModified": 1762787259,
+        "narHash": "sha256-t2U/GLLXHa2+kJkwnFNRVc2fEJ/lUfyZXBE5iKzJdcs=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "124b99dbd1594dbebdd575ac7142752ee96a98a0",
+        "rev": "37a3d97f2873e0f68711117c34d04b7c7ead8f4e",
         "type": "github"
       },
       "original": {
@@ -520,11 +520,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761878381,
-        "narHash": "sha256-lCRaipHgszaFZ1Cs8fdGJguVycCisBAf2HEFgip5+xU=",
+        "lastModified": 1762964643,
+        "narHash": "sha256-RYHN8O/Aja59XDji6WSJZPkJpYVUfpSkyH+PEupBJqM=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "4ac96eb21c101a3e5b77ba105febc5641a8959aa",
+        "rev": "827f2a23373a774a8805f84ca5344654c31f354b",
         "type": "github"
       },
       "original": {
@@ -542,11 +542,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1752603129,
-        "narHash": "sha256-S+wmHhwNQ5Ru689L2Gu8n1OD6s9eU9n9mD827JNR+kw=",
+        "lastModified": 1762964643,
+        "narHash": "sha256-RYHN8O/Aja59XDji6WSJZPkJpYVUfpSkyH+PEupBJqM=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "e8c19a3cec2814c754f031ab3ae7316b64da085b",
+        "rev": "827f2a23373a774a8805f84ca5344654c31f354b",
         "type": "github"
       },
       "original": {
@@ -595,11 +595,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761748321,
-        "narHash": "sha256-hD5mVzmUeyVppjArdy2uVdQe/CQUR9i3WgZB05onE7A=",
+        "lastModified": 1762856455,
+        "narHash": "sha256-x7zgteJWIlbVexL2ubOadUXKlHSjh0RAjLO1KfWdgpU=",
         "owner": "Jovian-Experiments",
         "repo": "Jovian-NixOS",
-        "rev": "533db5857c9e00ca352558a928417116ee08a824",
+        "rev": "29a671ae20223d182eaf54b963a735230497c2f9",
         "type": "github"
       },
       "original": {
@@ -664,11 +664,11 @@
         "xwayland-satellite-unstable": "xwayland-satellite-unstable"
       },
       "locked": {
-        "lastModified": 1761724527,
-        "narHash": "sha256-nB500dSUaNBtOsu5JI1PDNmjuFD6Kdbkh648q0FoaIY=",
+        "lastModified": 1763126448,
+        "narHash": "sha256-LVYJJObvkWwR8QB/Srr6Rks+Fw2lYvnRNOH0etV9DM8=",
         "owner": "sodiboo",
         "repo": "niri-flake",
-        "rev": "1ff74954f559bb2da63e28b3fcffd3b09ec32842",
+        "rev": "add7bcf2925547e180cc2fe6d5f4b5e7c579d086",
         "type": "github"
       },
       "original": {
@@ -697,11 +697,11 @@
     "niri-unstable": {
       "flake": false,
       "locked": {
-        "lastModified": 1761721311,
-        "narHash": "sha256-fXBALdA4CKAYslcuamjzQZLUTCNBIKWybj+/2rwe3Z0=",
+        "lastModified": 1763014447,
+        "narHash": "sha256-nmu7S8J9IJKLQyIkSU8QWYHygrfw76NHGTkcr+bXMX0=",
         "owner": "YaLTeR",
         "repo": "niri",
-        "rev": "6e8fd153395036c2daa7c214695ed9baf2409a2e",
+        "rev": "a52df533c4694b5ed0a04140af60fd26146df911",
         "type": "github"
       },
       "original": {
@@ -800,11 +800,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761969132,
-        "narHash": "sha256-0me4+e+1VxNuvySSw0voqMCWU/eUmTuth7f4+Q2jbUY=",
+        "lastModified": 1762908663,
+        "narHash": "sha256-HqdYfzBaidYX+EYAcXDFCggXJPZBv2fusMwhc7/4+cI=",
         "owner": "nix-community",
         "repo": "NixOS-WSL",
-        "rev": "761582d6ab431549fe1396d2cd681e3fe9376020",
+        "rev": "debc562c48c445f9f08778ecb9fc6b35197623ad",
         "type": "github"
       },
       "original": {
@@ -815,11 +815,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1761672384,
-        "narHash": "sha256-o9KF3DJL7g7iYMZq9SWgfS1BFlNbsm6xplRjVlOCkXI=",
+        "lastModified": 1762844143,
+        "narHash": "sha256-SlybxLZ1/e4T2lb1czEtWVzDCVSTvk9WLwGhmxFmBxI=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "08dacfca559e1d7da38f3cf05f1f45ee9bfd213c",
+        "rev": "9da7f1cf7f8a6e2a7cb3001b048546c92a8258b4",
         "type": "github"
       },
       "original": {
@@ -843,11 +843,11 @@
     },
     "nixpkgs-master": {
       "locked": {
-        "lastModified": 1761993804,
-        "narHash": "sha256-hAzNOwXGbmXcoHAoHhMKcm2A/QRoatYon7gjVcD4dNE=",
+        "lastModified": 1763185868,
+        "narHash": "sha256-jKSDU/8nSpYyyd8i0jZMSeq0N6DT2AAT/L3GrIOSrUw=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "497be408195b0a64eb89f2ced3b70aec7268bbb2",
+        "rev": "9ef55366d2e9176fb46469a753c7d2161bb06710",
         "type": "github"
       },
       "original": {
@@ -859,11 +859,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1761468971,
-        "narHash": "sha256-vY2OLVg5ZTobdroQKQQSipSIkHlxOTrIF1fsMzPh8w8=",
+        "lastModified": 1763049705,
+        "narHash": "sha256-A5LS0AJZ1yDPTa2fHxufZN++n8MCmtgrJDtxFxrH4S8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "78e34d1667d32d8a0ffc3eba4591ff256e80576e",
+        "rev": "3acb677ea67d4c6218f33de0db0955f116b7588c",
         "type": "github"
       },
       "original": {
@@ -875,11 +875,11 @@
     },
     "nixpkgs-stable_2": {
       "locked": {
-        "lastModified": 1761992524,
-        "narHash": "sha256-yNHj/YYnB+I2MV1rjvMzdMWJEx1vPYOac95oGPsVYaM=",
+        "lastModified": 1763182931,
+        "narHash": "sha256-L3ocbCSpekZCLSDuByaSfb6rwe7Qban8d782bc/j0l4=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "7d6d8af114cb68bb99a55b7f4a3c0dffebd4c1c5",
+        "rev": "d82502b7773487d325a541ce84deb166cea3748a",
         "type": "github"
       },
       "original": {
@@ -891,11 +891,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1761907660,
-        "narHash": "sha256-kJ8lIZsiPOmbkJypG+B5sReDXSD1KGu2VEPNqhRa/ew=",
+        "lastModified": 1762977756,
+        "narHash": "sha256-4PqRErxfe+2toFJFgcRKZ0UI9NSIOJa+7RXVtBhy4KE=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "2fb006b87f04c4d3bdf08cfdbc7fab9c13d94a15",
+        "rev": "c5ae371f1a6a7fd27823bc500d9390b38c05fa55",
         "type": "github"
       },
       "original": {
@@ -905,6 +905,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-working": {
+      "locked": {
+        "lastModified": 1762844143,
+        "narHash": "sha256-SlybxLZ1/e4T2lb1czEtWVzDCVSTvk9WLwGhmxFmBxI=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "9da7f1cf7f8a6e2a7cb3001b048546c92a8258b4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "9da7f1cf7f8a6e2a7cb3001b048546c92a8258b4",
+        "type": "github"
+      }
+    },
     "nixpkgs_2": {
       "locked": {
         "lastModified": 1730531603,
@@ -955,11 +971,11 @@
     },
     "nixpkgs_5": {
       "locked": {
-        "lastModified": 1761373498,
-        "narHash": "sha256-Q/uhWNvd7V7k1H1ZPMy/vkx3F8C13ZcdrKjO7Jv7v0c=",
+        "lastModified": 1762977756,
+        "narHash": "sha256-4PqRErxfe+2toFJFgcRKZ0UI9NSIOJa+7RXVtBhy4KE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6a08e6bb4e46ff7fcbb53d409b253f6bad8a28ce",
+        "rev": "c5ae371f1a6a7fd27823bc500d9390b38c05fa55",
         "type": "github"
       },
       "original": {
@@ -969,6 +985,22 @@
         "type": "github"
       }
     },
+    "nixpkgs_6": {
+      "locked": {
+        "lastModified": 1761236834,
+        "narHash": "sha256-+pthv6hrL5VLW2UqPdISGuLiUZ6SnAXdd2DdUE+fV2Q=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "d5faa84122bc0a1fd5d378492efce4e289f8eac1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "noctalia": {
       "inputs": {
         "nixpkgs": [
@@ -990,6 +1022,7 @@
       "original": {
         "owner": "noctalia-dev",
         "repo": "noctalia-shell",
+        "rev": "34a6947ad69ff9aec4960e0d1d618a0c041943ca",
         "type": "github"
       }
     },
@@ -1042,11 +1075,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761897390,
-        "narHash": "sha256-er4gYrIoThYLjlsOMTysoRfn67d1Gci+ZpqDrtQxrA0=",
+        "lastModified": 1763115162,
+        "narHash": "sha256-TgHTFlFI9tZ4kp4yy8fcfy98srgcob9gcOeuKjs1Mw4=",
         "owner": "outfoxxed",
         "repo": "quickshell",
-        "rev": "fc704e6b5d445899a1565955268c91942a4f263f",
+        "rev": "a00ff0394431d1fe3f33ae0934c981930e2a1efb",
         "type": "github"
       },
       "original": {
@@ -1074,22 +1107,24 @@
         "nixpkgs-master": "nixpkgs-master",
         "nixpkgs-stable": "nixpkgs-stable_2",
         "nixpkgs-unstable": "nixpkgs-unstable",
+        "nixpkgs-working": "nixpkgs-working",
         "noctalia": "noctalia",
         "plant": "plant",
         "quickshell": "quickshell",
         "sops-nix": "sops-nix",
         "stylix": "stylix",
+        "treefmt": "treefmt",
         "zen": "zen"
       }
     },
     "rust-analyzer-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1761894503,
-        "narHash": "sha256-SreGV62DEv7kLJEcOBrw2V6Kup0siT4wS3Ye8PlFTdE=",
+        "lastModified": 1762860488,
+        "narHash": "sha256-rMfWMCOo/pPefM2We0iMBLi2kLBAnYoB9thi4qS7uk4=",
         "owner": "rust-lang",
         "repo": "rust-analyzer",
-        "rev": "2e2e3ebec91215078de9b754363fc9a7b0fdef13",
+        "rev": "2efc80078029894eec0699f62ec8d5c1a56af763",
         "type": "github"
       },
       "original": {
@@ -1107,11 +1142,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761758177,
-        "narHash": "sha256-MsVJG2gQTm6n2jIGu2KDT87AMeMx1GExOaEQqNkQKVE=",
+        "lastModified": 1762915112,
+        "narHash": "sha256-d9j1g8nKmYDHy+/bIOPQTh9IwjRliqaTM0QLHMV92Ic=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "37f8f092415b444c3bed6eda6bcbee51cee22e5d",
+        "rev": "aa1e85921cfa04de7b6914982a94621fbec5cc02",
         "type": "github"
       },
       "original": {
@@ -1127,11 +1162,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761064406,
-        "narHash": "sha256-8KLclb3V/13kqoxqSowA7dSBzbkzRS3JqtEplYb74Gs=",
+        "lastModified": 1763111468,
+        "narHash": "sha256-EK8coWrd1AkP4813/tY0fNqaJ0B5tyS/FfC6TSL8P0M=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "b83b1a4a105bd3a255b8c0f339c7231fa8aad2e5",
+        "rev": "d623efbbaa7cb0f1b13d7191029dc669f260460a",
         "type": "github"
       },
       "original": {
@@ -1162,11 +1197,11 @@
         "tinted-zed": "tinted-zed"
       },
       "locked": {
-        "lastModified": 1761840967,
-        "narHash": "sha256-alE8Vesztx3tPxXpJURtYWD8x1cXaU/x+10Q6hbgGBY=",
+        "lastModified": 1762264356,
+        "narHash": "sha256-QVfC53Ri+8n3e7Ujx9kq6all3+TLBRRPRnc6No5qY5w=",
         "owner": "danth",
         "repo": "stylix",
-        "rev": "c33226f205aeab42a170913cd1f8bc3428b7e6b1",
+        "rev": "647bb8dd96a206a1b79c4fd714affc88b409e10b",
         "type": "github"
       },
       "original": {
@@ -1301,6 +1336,24 @@
         "type": "github"
       }
     },
+    "treefmt": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_6"
+      },
+      "locked": {
+        "lastModified": 1762938485,
+        "narHash": "sha256-AlEObg0syDl+Spi4LsZIBrjw+snSVU4T8MOeuZJUJjM=",
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "rev": "5b4ee75aeefd1e2d5a1cc43cf6ba65eba75e83e4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "type": "github"
+      }
+    },
     "xwayland-satellite-stable": {
       "flake": false,
       "locked": {
@@ -1321,11 +1374,11 @@
     "xwayland-satellite-unstable": {
       "flake": false,
       "locked": {
-        "lastModified": 1761622056,
-        "narHash": "sha256-fBrUszJXmB4MY+wf3QsCnqWHcz7u7fLq0QMAWCltIQg=",
+        "lastModified": 1762747449,
+        "narHash": "sha256-Z1TKiux8K09a93w4PFDFsj8HFugXNy3iCC3Z8MpR5Rk=",
         "owner": "Supreeeme",
         "repo": "xwayland-satellite",
-        "rev": "0728d59ff6463a502e001fb090f6eb92dbc04756",
+        "rev": "6338574bc5c036487486acde264f38f39ea15fad",
         "type": "github"
       },
       "original": {
@@ -1342,11 +1395,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761970869,
-        "narHash": "sha256-dlcxJTY+MwR9u3yTkBkzqfHY2+MKonDS7UzoOLlGpuw=",
+        "lastModified": 1763171103,
+        "narHash": "sha256-8yIUdnaYIx3f96ZW+gklifdhB7Zs+jLi8VPfL9owitw=",
         "owner": "0xc000022070",
         "repo": "zen-browser-flake",
-        "rev": "5855db6427f25672d7f02e19af418a38fe82e26e",
+        "rev": "85d439e2c3271d50581392c88e9d60d6e2e87bf8",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 462efe4..0c4f606 100644
--- a/flake.nix
+++ b/flake.nix
@@ -6,6 +6,7 @@
     nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
     nixpkgs-stable.url = "github:nixos/nixpkgs/release-25.05";
     nixpkgs-master.url = "github:nixos/nixpkgs/master";
+    nixpkgs-working.url = "github:nixos/nixpkgs/9da7f1cf7f8a6e2a7cb3001b048546c92a8258b4";
     # nixpkgs.follows = "nixpkgs-stable";
     nixpkgs.follows = "nixpkgs-unstable";
     # nixpkgs.follows = "nixpkgs-master";
@@ -44,7 +45,7 @@
 
     # go-musicfox
     go-musicfox = {
-      url = "github:imxyy1soope1/go-musicfox/master";
+      url = "github:imxyy1soope1/go-musicfox/938c4d6bb2a318bc6251f3b11fa8cf54d29b4419";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
@@ -67,7 +68,7 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     noctalia = {
-      url = "github:noctalia-dev/noctalia-shell";
+      url = "github:noctalia-dev/noctalia-shell/34a6947ad69ff9aec4960e0d1d618a0c041943ca";
       inputs.nixpkgs.follows = "nixpkgs";
       inputs.quickshell.follows = "quickshell"; # Use same quickshell version
     };
@@ -91,6 +92,8 @@
       url = "github:nix-community/haumea/v0.2.2";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+
+    treefmt.url = "github:numtide/treefmt-nix";
   };
 
   outputs =
@@ -135,23 +138,22 @@
         }
       );
 
-      # workaround for "treefmt warning"
       formatter = forAllSystems (
         system:
         let
           pkgs = nixpkgs.legacyPackages.${system};
+          treefmtEval = inputs.treefmt.lib.evalModule pkgs ./treefmt.nix;
         in
-        pkgs.writeShellApplication {
-          name = "nixfmt-wrapper";
-
-          runtimeInputs = with pkgs; [
-            fd
-            nixfmt-rfc-style
-          ];
-
-          text = ''
-            fd "$@" -t f -e nix -x nixfmt '{}'
-          '';
+        treefmtEval.config.build.wrapper
+      );
+      check = forAllSystems (
+        system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+          treefmtEval = inputs.treefmt.lib.evalModule pkgs ./treefmt.nix;
+        in
+        {
+          formatting = treefmtEval.config.build.check self;
         }
       );
 
@@ -251,4 +253,4 @@
         }
       );
     };
-}
+}
\ No newline at end of file
diff --git a/modules/coding/editor/neovim/nvim/lua/plugins/nvim-tree.lua b/modules/coding/editor/neovim/nvim/lua/plugins/nvim-tree.lua
index 3e95c90..6d35348 100644
--- a/modules/coding/editor/neovim/nvim/lua/plugins/nvim-tree.lua
+++ b/modules/coding/editor/neovim/nvim/lua/plugins/nvim-tree.lua
@@ -29,4 +29,4 @@ vim.api.nvim_create_autocmd("BufEnter", {
   end,
 })
 
-return M
\ No newline at end of file
+return M
diff --git a/modules/coding/editor/neovim/nvim/lua/plugins/plugins-setup.lua b/modules/coding/editor/neovim/nvim/lua/plugins/plugins-setup.lua
index 06ee741..a456f74 100644
--- a/modules/coding/editor/neovim/nvim/lua/plugins/plugins-setup.lua
+++ b/modules/coding/editor/neovim/nvim/lua/plugins/plugins-setup.lua
@@ -283,4 +283,4 @@ local plugins = {
   },
 }
 
-require("lazy").setup(plugins, {})
\ No newline at end of file
+require("lazy").setup(plugins, {})
diff --git a/modules/nix.nix b/modules/nix.nix
index e6faa54..cf0be21 100644
--- a/modules/nix.nix
+++ b/modules/nix.nix
@@ -70,4 +70,4 @@ lib.my.makeSwitch {
       };
     */
   };
-}
+}
\ No newline at end of file
diff --git a/overlays/default.nix b/overlays/default.nix
index df50c24..630c67b 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -59,4 +59,11 @@
       config.allowUnfree = true;
     };
   };
-}
+
+  working-packages = final: _prev: {
+    working = import inputs.nixpkgs-working {
+      system = final.stdenv.hostPlatform.system;
+      config.allowUnfree = true;
+    };
+  };
+}
\ No newline at end of file
diff --git a/treefmt.nix b/treefmt.nix
new file mode 100644
index 0000000..854c30d
--- /dev/null
+++ b/treefmt.nix
@@ -0,0 +1,8 @@
+{ ... }:
+{
+  projectRootFile = "flake.nix";
+  programs = {
+    nixfmt.enable = true;
+    stylua.enable = true;
+  };
+}