diff --git a/flake.lock b/flake.lock
index 5994a96..af46674 100644
--- a/flake.lock
+++ b/flake.lock
@@ -30,11 +30,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1750173260,
-        "narHash": "sha256-9P1FziAwl5+3edkfFcr5HeGtQUtrSdk/MksX39GieoA=",
+        "lastModified": 1747575206,
+        "narHash": "sha256-NwmAFuDUO/PFcgaGGr4j3ozG9Pe5hZ/ogitWhY+D81k=",
         "owner": "ryantm",
         "repo": "agenix",
-        "rev": "531beac616433bac6f9e2a19feb8e99a22a66baf",
+        "rev": "4835b1dc898959d8547a871ef484930675cb47f1",
         "type": "github"
       },
       "original": {
@@ -46,15 +46,17 @@
     "attic": {
       "flake": false,
       "locked": {
-        "lastModified": 1750621880,
-        "narHash": "sha256-1l1FdnWa77BdBTlXHXxyEPeE+X3p/x9W5bTrirkT5SI=",
-        "rev": "3b1831a2719a54830a3bf3a10d5a1fee81ca35a3",
-        "type": "tarball",
-        "url": "https://git.lix.systems/api/v1/repos/nrabulinski/attic/archive/3b1831a2719a54830a3bf3a10d5a1fee81ca35a3.tar.gz?rev=3b1831a2719a54830a3bf3a10d5a1fee81ca35a3"
+        "lastModified": 1748777195,
+        "narHash": "sha256-j3GQS4zm4zc1yo+5hCs0kpIGNDePj7ayRkbqsy3tyYs=",
+        "ref": "refs/heads/main",
+        "rev": "ec24c04e345ab02ff35020d99e34f1eda0b82352",
+        "revCount": 373,
+        "type": "git",
+        "url": "https://git.lix.systems/nrabulinski/attic.git"
       },
       "original": {
-        "type": "tarball",
-        "url": "https://git.lix.systems/nrabulinski/attic/archive/main.tar.gz"
+        "type": "git",
+        "url": "https://git.lix.systems/nrabulinski/attic.git"
       }
     },
     "blobs": {
@@ -76,11 +78,11 @@
     "conduit-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1750551437,
-        "narHash": "sha256-Im9Mht19WldZmQP59mQSbPAnQYYyD8J6aBfuI63L4uY=",
+        "lastModified": 1748702033,
+        "narHash": "sha256-W72vGS0qJow1O4jXkuE3px4eNyFJeZqjuMREs6Lb5bU=",
         "owner": "famedly",
         "repo": "conduit",
-        "rev": "3248efbe4b50ccc3a34a3e4d0e5ebc13be2b8909",
+        "rev": "a1886a13967b0471b55428f7aed55087ad357491",
         "type": "gitlab"
       },
       "original": {
@@ -93,11 +95,11 @@
     "crane": {
       "flake": false,
       "locked": {
-        "lastModified": 1750266157,
-        "narHash": "sha256-tL42YoNg9y30u7zAqtoGDNdTyXTi8EALDeCB13FtbQA=",
+        "lastModified": 1748047550,
+        "narHash": "sha256-t0qLLqb4C1rdtiY8IFRH5KIapTY/n3Lqt57AmxEv9mk=",
         "owner": "ipetkov",
         "repo": "crane",
-        "rev": "e37c943371b73ed87faf33f7583860f81f1d5a48",
+        "rev": "b718a78696060df6280196a6f992d04c87a16aef",
         "type": "github"
       },
       "original": {
@@ -108,11 +110,11 @@
     },
     "crane_2": {
       "locked": {
-        "lastModified": 1748970125,
-        "narHash": "sha256-UDyigbDGv8fvs9aS95yzFfOKkEjx1LO3PL3DsKopohA=",
+        "lastModified": 1743700120,
+        "narHash": "sha256-8BjG/P0xnuCyVOXlYRwdI1B8nVtyYLf3oDwPSimqREY=",
         "owner": "ipetkov",
         "repo": "crane",
-        "rev": "323b5746d89e04b22554b061522dfce9e4c49b18",
+        "rev": "e316f19ee058e6db50075115783be57ac549c389",
         "type": "github"
       },
       "original": {
@@ -128,11 +130,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1750423559,
-        "narHash": "sha256-V9CtRGRbi+9qUgbinyfR8lwhDiwg+QtTaT88FLD8Z3Y=",
+        "lastModified": 1748354048,
+        "narHash": "sha256-BUUifoC7bipKczvpk8fq+UYrhiK95nt/zhMuPcelzWg=",
         "owner": "lnl7",
         "repo": "nix-darwin",
-        "rev": "f601f02d132b3118f56e013249f4b234c371180d",
+        "rev": "eb1b636932ba2f19522d3687ba27c6adf3fd5978",
         "type": "github"
       },
       "original": {
@@ -149,11 +151,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1750040002,
-        "narHash": "sha256-KrC9iOVYIn6ukpVlHbqSA4hYCZ6oDyJKrcLqv4c5v84=",
+        "lastModified": 1748225455,
+        "narHash": "sha256-AzlJCKaM4wbEyEpV3I/PUq5mHnib2ryEy32c+qfj6xk=",
         "owner": "nix-community",
         "repo": "disko",
-        "rev": "7f1857b31522062a6a00f88cbccf86b43acceed1",
+        "rev": "a894f2811e1ee8d10c50560551e50d6ab3c392ba",
         "type": "github"
       },
       "original": {
@@ -242,11 +244,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1749636823,
-        "narHash": "sha256-WUaIlOlPLyPgz9be7fqWJA5iG6rHcGRtLERSCfUDne4=",
+        "lastModified": 1742649964,
+        "narHash": "sha256-DwOTp7nvfi8mRfuL1escHDXabVXFGT1VlPD1JHrtrco=",
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "623c56286de5a3193aa38891a6991b28f9bab056",
+        "rev": "dcf5072734cb576d2b0c59b2ac44f5050b5eac82",
         "type": "github"
       },
       "original": {
@@ -285,11 +287,11 @@
         "rust-overlay": "rust-overlay"
       },
       "locked": {
-        "lastModified": 1750531852,
-        "narHash": "sha256-ps4Fa8cq+q13Kb2nj9uxXjIGvsSRBUfcxW5CgquxiQI=",
+        "lastModified": 1748702599,
+        "narHash": "sha256-cXzTGHrZsT4wSxlLvw2ZlHPVjC/MA2W0sI/KF1yStbY=",
         "owner": "helix-editor",
         "repo": "helix",
-        "rev": "171dfc60e5cda8f9fb6c4f662872f35bbe864a53",
+        "rev": "2baff46b2578d78d817b9e128e8cc00345541f0b",
         "type": "github"
       },
       "original": {
@@ -305,11 +307,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1750614446,
-        "narHash": "sha256-6WH0aRFay79r775RuTqUcnoZNm6A4uHxU1sbcNIk63s=",
+        "lastModified": 1748737919,
+        "narHash": "sha256-5kvBbLYdp+n7Ftanjcs6Nv+UO6sBhelp6MIGJ9nWmjQ=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "7c35504839f915abec86a96435b881ead7eb6a2b",
+        "rev": "5675a9686851d9626560052a032c4e14e533c1fa",
         "type": "github"
       },
       "original": {
@@ -321,15 +323,17 @@
     "lix": {
       "flake": false,
       "locked": {
-        "lastModified": 1750506763,
-        "narHash": "sha256-hCbhc9P+UmIlYv81+vs6v3bDqviCUhwPH3XqClZdfSk=",
-        "rev": "242a228124f77b57c2e3b3aedb259ffb7913cd3c",
-        "type": "tarball",
-        "url": "https://git.lix.systems/api/v1/repos/lix-project/lix/archive/242a228124f77b57c2e3b3aedb259ffb7913cd3c.tar.gz?rev=242a228124f77b57c2e3b3aedb259ffb7913cd3c"
+        "lastModified": 1748588861,
+        "narHash": "sha256-bP9MHHCx/6Pi1TlO7Iq8X6AUoQHzyExQJNnSHSOqUUk=",
+        "ref": "refs/heads/main",
+        "rev": "3815dd5e64fc374fa4dcc5064470cd7a7d77aaf3",
+        "revCount": 17966,
+        "type": "git",
+        "url": "https://git.lix.systems/lix-project/lix.git"
       },
       "original": {
-        "type": "tarball",
-        "url": "https://git.lix.systems/lix-project/lix/archive/main.tar.gz"
+        "type": "git",
+        "url": "https://git.lix.systems/lix-project/lix.git"
       }
     },
     "lix-module": {
@@ -346,13 +350,15 @@
       "locked": {
         "lastModified": 1747667424,
         "narHash": "sha256-7EICjbmG6lApWKhFtwvZovdcdORY1CEe6/K7JwtpYfs=",
+        "ref": "refs/heads/main",
         "rev": "3c23c6ae2aecc1f76ae7993efe1a78b5316f0700",
-        "type": "tarball",
-        "url": "https://git.lix.systems/api/v1/repos/lix-project/nixos-module/archive/3c23c6ae2aecc1f76ae7993efe1a78b5316f0700.tar.gz?rev=3c23c6ae2aecc1f76ae7993efe1a78b5316f0700"
+        "revCount": 144,
+        "type": "git",
+        "url": "https://git.lix.systems/lix-project/nixos-module.git"
       },
       "original": {
-        "type": "tarball",
-        "url": "https://git.lix.systems/lix-project/nixos-module/archive/main.tar.gz"
+        "type": "git",
+        "url": "https://git.lix.systems/lix-project/nixos-module.git"
       }
     },
     "mailserver": {
@@ -366,11 +372,11 @@
         "nixpkgs-25_05": "nixpkgs-25_05"
       },
       "locked": {
-        "lastModified": 1750598722,
-        "narHash": "sha256-mDOWRzp0iEdnNln7Wvg60awdFGNq9hIOdPudMeueB6Q=",
+        "lastModified": 1748689589,
+        "narHash": "sha256-ltwdNAsto54HMQFdrCprWXPFhNBfEuiCkj+GS7ZHvww=",
         "owner": "simple-nixos-mailserver",
         "repo": "nixos-mailserver",
-        "rev": "cfb3136cf01a3e571b5340c7529b5b4722a08c52",
+        "rev": "c9f61e02aee97dc8c7d4f3739b012a992183508c",
         "type": "gitlab"
       },
       "original": {
@@ -382,11 +388,11 @@
     "nh": {
       "flake": false,
       "locked": {
-        "lastModified": 1750610317,
-        "narHash": "sha256-tArf9ek4DoR+5lcDlshGS/CjMjX8vMNfpZ1Ys98UrZM=",
+        "lastModified": 1748096601,
+        "narHash": "sha256-ji/9z1pRbosyKVVAIGBazyz6PjWV8bc2Ux2RdQrVDWY=",
         "owner": "nix-community",
         "repo": "nh",
-        "rev": "e5dbcf9d48257f4a116bc4746e0c59c78e08e161",
+        "rev": "1ea27e73a3dcbc9950258e9054377ee677d12b9e",
         "type": "github"
       },
       "original": {
@@ -398,11 +404,11 @@
     "nilla": {
       "flake": false,
       "locked": {
-        "lastModified": 1749389880,
-        "narHash": "sha256-15lwhWcMonJH6UholMMHDc+p2BoSpGA4AYGrsXQA9Do=",
+        "lastModified": 1748686039,
+        "narHash": "sha256-7iLzbTLtgdFtm9em3xxHO9BunN2YpgYquMLKXh5hEpQ=",
         "owner": "nilla-nix",
         "repo": "nilla",
-        "rev": "2e98ae315a592ad6b6de44670514c048dcc88dc7",
+        "rev": "4e6038f4ebc89487194013af6a1e077dfeb00359",
         "type": "github"
       },
       "original": {
@@ -413,11 +419,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1750386251,
-        "narHash": "sha256-1ovgdmuDYVo5OUC5NzdF+V4zx2uT8RtsgZahxidBTyw=",
+        "lastModified": 1748662220,
+        "narHash": "sha256-7gGa49iB9nCnFk4h/g9zwjlQAyjtpgcFkODjcOQS0Es=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "076e8c6678d8c54204abcb4b1b14c366835a58bb",
+        "rev": "59138c7667b7970d205d6a05a8bfa2d78caa3643",
         "type": "github"
       },
       "original": {
@@ -429,11 +435,11 @@
     },
     "nixpkgs-25_05": {
       "locked": {
-        "lastModified": 1749727998,
-        "narHash": "sha256-mHv/yeUbmL91/TvV95p+mBVahm9mdQMJoqaTVTALaFw=",
+        "lastModified": 1747610100,
+        "narHash": "sha256-rpR5ZPMkWzcnCcYYo3lScqfuzEw5Uyfh+R0EKZfroAc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "fd487183437963a59ba763c0cc4f27e3447dd6dd",
+        "rev": "ca49c4304acf0973078db0a9d200fd2bae75676d",
         "type": "github"
       },
       "original": {
@@ -516,11 +522,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1749436897,
-        "narHash": "sha256-OkDtaCGQQVwVFz5HWfbmrMJR99sFIMXHCHEYXzUJEJY=",
+        "lastModified": 1743682350,
+        "narHash": "sha256-S/MyKOFajCiBm5H5laoE59wB6w0NJ4wJG53iAPfYW3k=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "e7876c387e35dc834838aff254d8e74cf5bd4f19",
+        "rev": "c4a8327b0f25d1d81edecbb6105f74d7cf9d7382",
         "type": "github"
       },
       "original": {
@@ -581,11 +587,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1749194973,
-        "narHash": "sha256-eEy8cuS0mZ2j/r/FE0/LYBSBcIs/MKOIVakwHVuqTfk=",
+        "lastModified": 1748243702,
+        "narHash": "sha256-9YzfeN8CB6SzNPyPm2XjRRqSixDopTapaRsnTpXUEY8=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "a05be418a1af1198ca0f63facb13c985db4cb3c5",
+        "rev": "1f3f7b784643d488ba4bf315638b2b0a4c5fb007",
         "type": "github"
       },
       "original": {
@@ -651,11 +657,11 @@
         "rust-overlay": "rust-overlay_2"
       },
       "locked": {
-        "lastModified": 1750360050,
-        "narHash": "sha256-/BT5MJqy+e0jHjALBNL8YT4kQ9wlaSedxPapYvKyeyw=",
+        "lastModified": 1745230073,
+        "narHash": "sha256-OER99U7MiqQ47myvbsiljsax7OsK19NMds4NBM9XXLs=",
         "owner": "dj95",
         "repo": "zjstatus",
-        "rev": "857ada14fc8f652300571272c6db7c12620c33c0",
+        "rev": "a819e3bfe6bfef0438d811cdbb1bcfdc29912c62",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 932e4c3..594009f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -48,7 +48,7 @@
       flake = false;
     };
     attic = {
-      url = "https://git.lix.systems/nrabulinski/attic/archive/main.tar.gz";
+      url = "git+https://git.lix.systems/nrabulinski/attic.git";
       flake = false;
     };
     crane = {
@@ -64,11 +64,11 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     lix = {
-      url = "https://git.lix.systems/lix-project/lix/archive/main.tar.gz";
+      url = "git+https://git.lix.systems/lix-project/lix.git";
       flake = false;
     };
     lix-module = {
-      url = "https://git.lix.systems/lix-project/nixos-module/archive/main.tar.gz";
+      url = "git+https://git.lix.systems/lix-project/nixos-module.git";
       inputs.nixpkgs.follows = "nixpkgs";
       inputs.lix.follows = "lix";
     };
diff --git a/hosts/kazuki/mail.nix b/hosts/kazuki/mail.nix
index fe24540..122cc7f 100644
--- a/hosts/kazuki/mail.nix
+++ b/hosts/kazuki/mail.nix
@@ -38,7 +38,7 @@
 
     certificateScheme = "acme-nginx";
 
-    stateVersion = 3;
+    stateVersion = 2;
   };
 
   # TODO: Remove once SNM gets their shit together