diff --git a/flake.lock b/flake.lock
index 923d9dd5..4c970ed4 100644
--- a/flake.lock
+++ b/flake.lock
@@ -246,11 +246,11 @@
     },
     "flake-utils": {
       "locked": {
-        "lastModified": 1676283394,
-        "narHash": "sha256-XX2f9c3iySLCw54rJ/CZs+ZK6IQy7GXNY4nSOyu2QG4=",
+        "lastModified": 1678901627,
+        "narHash": "sha256-U02riOqrKKzwjsxc/400XnElV+UtPUQWpANPlyazjH0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "3db36a8b464d0c4532ba1c7dda728f4576d6d073",
+        "rev": "93a2b84fc4b70d9e089d029deacc3583435c2ed6",
         "type": "github"
       },
       "original": {
@@ -266,14 +266,17 @@
         ],
         "nixpkgs": [
           "nixos"
+        ],
+        "treefmt-nix": [
+          "treefmt-nix"
         ]
       },
       "locked": {
-        "lastModified": 1677831817,
-        "narHash": "sha256-dcXHq1Kk1cx8EFh/W4lq8KZWIVIaFU6uKekRAZMUbH0=",
+        "lastModified": 1678734977,
+        "narHash": "sha256-a75WYjPF0PDdj+2Nw8al1hY11P0GDaCWnAQ3ZZsKvFw=",
         "owner": "nix-community",
         "repo": "harmonia",
-        "rev": "caa5aff87f4455510b4c6270bcda36e3b6b0ceec",
+        "rev": "42a8d180f11d3f10ac73781aea9f10293b0a9d21",
         "type": "github"
       },
       "original": {
@@ -324,11 +327,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1678238157,
-        "narHash": "sha256-sQgwrJHMk1RML3xuXTU6QTG0wxN1wig1oGABm456DHA=",
+        "lastModified": 1678629299,
+        "narHash": "sha256-29SSjmIxeuwXgKWynNoAEJ3uKFlXP0iIvSLDtGPdA+Y=",
         "owner": "astro",
         "repo": "microvm.nix",
-        "rev": "108f0c561eb4b140cac1ac7da7ba72867f62d174",
+        "rev": "55667b89c0f2b60c8d95a203f3784d2dca2ea31a",
         "type": "github"
       },
       "original": {
@@ -381,11 +384,11 @@
     },
     "nixos": {
       "locked": {
-        "lastModified": 1678478632,
-        "narHash": "sha256-NE9+0oT8i8PTdILYadzmL8S19TQCelfC26CYwvnfL7A=",
+        "lastModified": 1679098260,
+        "narHash": "sha256-vVSrbQQrZcm0uvjmVaRBiHpDbd8V8fQwr0xkFcLE68I=",
         "owner": "SuperSandro2000",
         "repo": "nixpkgs",
-        "rev": "ab3b0f1358d7bd0b0e5f66148afbc11d611008c9",
+        "rev": "cf18e4acce5f1ef1bee6f8f45890e56da1025155",
         "type": "github"
       },
       "original": {
@@ -397,11 +400,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1678397099,
-        "narHash": "sha256-5xq8YJe+h19TlD+EI4AE/3H3jcCcQ2AWU6CWBVc5tRc=",
+        "lastModified": 1679075297,
+        "narHash": "sha256-8TwS7NPQWW9iPejBwWzmjLnK8bQhdOMPpsj3KPAL6x8=",
         "owner": "nixos",
         "repo": "nixos-hardware",
-        "rev": "556101ff85bd6e20900ec73ee525b935154bc8ea",
+        "rev": "994584bb26ffa1deeaf56099601ef4bcc487273e",
         "type": "github"
       },
       "original": {
@@ -433,11 +436,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1677108877,
-        "narHash": "sha256-c0624bkfUn7Y7NI25TRL98rUh4UDNsRMqbbP34NFjCQ=",
+        "lastModified": 1679015215,
+        "narHash": "sha256-IVjK24TR9cA6cKfJCiVAJrwWF9YF60OEObyy4T0CwMc=",
         "owner": "SuperSandro2000",
         "repo": "nixos-modules",
-        "rev": "1de01ed1323441eb508bdc6f4c1aca6797f88381",
+        "rev": "7f5c771b83a25b042023b166743e2d63be43c9c1",
         "type": "github"
       },
       "original": {
@@ -487,11 +490,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1678443977,
-        "narHash": "sha256-a5HdJjGIfFqdzcAb2NLBqGPmaYg4e5a65oJlzU55JNA=",
+        "lastModified": 1679046911,
+        "narHash": "sha256-on6QCfuyQLP5KhOYbWG+Dj7tu82BeNnRdOCEd8wEVsU=",
         "owner": "astro",
         "repo": "nix-openwrt-imagebuilder",
-        "rev": "b895a4184f9a5f283d7d38882058e242e8a33645",
+        "rev": "7b1f44a2804d3c577b28ceca19ee3be852e05d27",
         "type": "github"
       },
       "original": {
@@ -534,6 +537,7 @@
         "ticker": "ticker",
         "tigger": "tigger",
         "tracer": "tracer",
+        "treefmt-nix": "treefmt-nix",
         "yammat": "yammat",
         "zentralwerk": "zentralwerk"
       }
@@ -565,15 +569,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1678501303,
-        "narHash": "sha256-92s2NOlcvydz0Cxi1OOq/bs7SQc38TaqzuzdHsRANhA=",
+        "lastModified": 1678397831,
+        "narHash": "sha256-7xbxSoiht8G+Zgz55R0ILPsTdbnksILCDMIxeg8Buns=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "1c8200cdc4c830d937fbf8b19e1f3e83daf3370a",
+        "rev": "bdf08e2f43488283eeb25b4a7e7ecba9147a955c",
         "type": "github"
       },
       "original": {
         "owner": "oxalica",
+        "ref": "stable",
         "repo": "rust-overlay",
         "type": "github"
       }
@@ -642,11 +647,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1678440572,
-        "narHash": "sha256-zfL09Yy6H7QQwfacCPL0gOfWpVkTbE5jXJh5oZmGf8g=",
+        "lastModified": 1678590185,
+        "narHash": "sha256-scvu8HegWwbcvPKjh6M1DnpPYAv4EnP1krsRPItoQ+E=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "1568702de0d2488c1e77011a9044de7fadec80c4",
+        "rev": "9e98f7a442b0e318de9cce757675c2ab922bdf2b",
         "type": "github"
       },
       "original": {
@@ -715,11 +720,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1671653359,
-        "narHash": "sha256-OllBl0wVRP2Sm3Bmu0yYtYtB9E0gfdh//7Mv2fERLe4=",
+        "lastModified": 1679091708,
+        "narHash": "sha256-TNFwN4KfsFF6wJdRynXpvUTKOv2CSaZ+Go+V2gYirnI=",
         "ref": "refs/heads/master",
-        "rev": "7a464e77e10eeb1297c4dc24f2ee6dcd4940f21b",
-        "revCount": 112,
+        "rev": "1a55ead24d7a4cda98010e9016e83fd8bec18a55",
+        "revCount": 119,
         "type": "git",
         "url": "https://gitea.c3d2.de/astro/ticker.git"
       },
@@ -770,6 +775,26 @@
         "url": "https://gitea.c3d2.de/astro/tracer"
       }
     },
+    "treefmt-nix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixos"
+        ]
+      },
+      "locked": {
+        "lastModified": 1678901796,
+        "narHash": "sha256-9myDjq948gHbiv16HnFQZaswQEpNodE/CuGCfDNnv/g=",
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "rev": "0f560a84215e79facd2833b20bfdc2033266f126",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "type": "github"
+      }
+    },
     "yammat": {
       "inputs": {
         "nixpkgs": [
diff --git a/flake.nix b/flake.nix
index b66c8ab9..ae83f010 100644
--- a/flake.nix
+++ b/flake.nix
@@ -93,6 +93,7 @@
       inputs = {
         flake-parts.follows = "flake-parts";
         nixpkgs.follows = "nixos";
+        treefmt-nix.follows = "treefmt-nix";
       };
     };
     heliwatch = {
@@ -138,7 +139,7 @@
       };
     };
     rust-overlay = {
-      url = "github:oxalica/rust-overlay";
+      url = "github:oxalica/rust-overlay/stable";
       inputs = {
         flake-utils.follows = "flake-utils";
         nixpkgs.follows = "nixos";
@@ -200,6 +201,10 @@
         flake-utils.follows = "flake-utils";
       };
     };
+    treefmt-nix = {
+      url = "github:numtide/treefmt-nix";
+      inputs.nixpkgs.follows = "nixos";
+    };
     yammat = {
       url = "git+https://gitea.c3d2.de/C3D2/yammat.git";
       inputs.nixpkgs.follows = "nixos";