diff --git a/default.nix b/default.nix
index 0dc320ca..d73d5834 100644
--- a/default.nix
+++ b/default.nix
@@ -35,11 +35,14 @@
       "https://nix-community.cachix.org"
       # hyprland
       "https://hyprland.cachix.org"
+      # my own cache
+      "https://sako-nixos-cache.cachix.org"
     ];
     trusted-public-keys = [
       "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
       "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
       "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
+      "sako-nixos-cache.cachix.org-1:tAbwmFrNrKkIlP/92/R0szKGscNORdS0qNC0iFwgEN8="
     ];
   };
 
diff --git a/flake.lock b/flake.lock
index a24f7f59..de6b1ba2 100644
--- a/flake.lock
+++ b/flake.lock
@@ -9,11 +9,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1723124175,
-        "narHash": "sha256-w+rlZdbj4kn70uPJl4WrPDFoGEy0A9oJqw684nvZ9dY=",
+        "lastModified": 1724065442,
+        "narHash": "sha256-8ZUoyeO7Q70bLuijVYvToBSkApw9kfc5hMykTGxB64I=",
         "owner": "nix-community",
         "repo": "NixOS-WSL",
-        "rev": "be1a6b2e4ddc34b9b6a297e7df2f2a2ecee24690",
+        "rev": "0bec2bfb8a2d4dd16e5b012982ca95e57d50e6a2",
         "type": "github"
       },
       "original": {
@@ -42,11 +42,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1722347739,
-        "narHash": "sha256-rAoh+K6KG+b1DwSWtqRVocdojnH6nGk6q07mNltoUSM=",
+        "lastModified": 1724006173,
+        "narHash": "sha256-1ROh0buuxiMyc6eIb3CIbJsmYO7PhLqSYs55mOx1XTk=",
         "owner": "hyprwm",
         "repo": "aquamarine",
-        "rev": "7c3565f9bedc7cb601cc0baa14792247e4dc1d5a",
+        "rev": "7f8df01d4297b9068a9592400f16044602844f86",
         "type": "github"
       },
       "original": {
@@ -58,17 +58,15 @@
     "emacs-overlay": {
       "inputs": {
         "flake-utils": "flake-utils_2",
-        "nixpkgs": [
-          "nixpkgs"
-        ],
+        "nixpkgs": "nixpkgs",
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1723338854,
-        "narHash": "sha256-PLkSNwd072KPZhwKd6aiMpOMqSuyoAUInBCbkqh4MVI=",
+        "lastModified": 1724231640,
+        "narHash": "sha256-1FnV0jk8GAItH71zVTzrhULylMKyXsb4FNmtn9b46Ug=",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "548db80761853bba29fb6289727a6319b27cc0eb",
+        "rev": "758aa1deb09d8d2dce7bd3a016434e8fcedfab89",
         "type": "github"
       },
       "original": {
@@ -136,11 +134,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1723015306,
-        "narHash": "sha256-jQnFEtH20/OsDPpx71ntZzGdRlpXhUENSQCGTjn//NA=",
+        "lastModified": 1723986931,
+        "narHash": "sha256-Fy+KEvDQ+Hc8lJAV3t6leXhZJ2ncU5/esxkgt3b8DEY=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "b3d5ea65d88d67d4ec578ed11d4d2d51e3de525e",
+        "rev": "2598861031b78aadb4da7269df7ca9ddfc3e1671",
         "type": "github"
       },
       "original": {
@@ -165,11 +163,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1721330371,
-        "narHash": "sha256-aYlHTWylczLt6ERJyg6E66Y/XSCbVL7leVcRuJmVbpI=",
+        "lastModified": 1722623071,
+        "narHash": "sha256-sLADpVgebpCBFXkA1FlCXtvEPu1tdEsTfqK1hfeHySE=",
         "owner": "hyprwm",
         "repo": "hyprcursor",
-        "rev": "4493a972b48f9c3014befbbf381ed5fff91a65dc",
+        "rev": "912d56025f03d41b1ad29510c423757b4379eb1c",
         "type": "github"
       },
       "original": {
@@ -185,16 +183,16 @@
         "hyprlang": "hyprlang",
         "hyprutils": "hyprutils",
         "hyprwayland-scanner": "hyprwayland-scanner",
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs_2",
         "systems": "systems_3",
         "xdph": "xdph"
       },
       "locked": {
-        "lastModified": 1723322565,
-        "narHash": "sha256-iwTi2QEc1H6s65Uv7V/Tro/vkvg8WCnpdjzX01mDp7g=",
+        "lastModified": 1724237560,
+        "narHash": "sha256-Dcg99OnyKx9m4gTx/TLyB6iC556J4bI/W5kilXSY8lM=",
         "ref": "refs/heads/main",
-        "rev": "01ff5fdf6a00a9231bd3b56400d8bcab378c4257",
-        "revCount": 5076,
+        "rev": "3e7325af57c4670ebea65d2669f49526819c2260",
+        "revCount": 5118,
         "submodules": true,
         "type": "git",
         "url": "https://github.com/hyprwm/Hyprland"
@@ -295,11 +293,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1722098849,
-        "narHash": "sha256-D3wIZlBNh7LuZ0NaoCpY/Pvu+xHxIVtSN+KkWZYvvVs=",
+        "lastModified": 1722869141,
+        "narHash": "sha256-0KU4qhyMp441qfwbirNg3+wbm489KnEjXOz2I/RbeFs=",
         "owner": "hyprwm",
         "repo": "hyprutils",
-        "rev": "5dcbbc1e3de40b2cecfd2007434d86e924468f1f",
+        "rev": "0252fd13e78e60fb0da512a212e56007515a49f7",
         "type": "github"
       },
       "original": {
@@ -335,11 +333,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1723175592,
-        "narHash": "sha256-M0xJ3FbDUc4fRZ84dPGx5VvgFsOzds77KiBMW/mMTnI=",
+        "lastModified": 1723991338,
+        "narHash": "sha256-Grh5PF0+gootJfOJFenTTxDTYPidA3V28dqJ/WV7iis=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "5e0ca22929f3342b19569b21b2f3462f053e497b",
+        "rev": "8a3354191c0d7144db9756a74755672387b702ba",
         "type": "github"
       },
       "original": {
@@ -351,11 +349,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1722987190,
-        "narHash": "sha256-68hmex5efCiM2aZlAAEcQgmFI4ZwWt8a80vOeB/5w3A=",
+        "lastModified": 1724098845,
+        "narHash": "sha256-D5HwjQw/02fuXbR4LCTo64koglP2j99hkDR79/3yLOE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "21cc704b5e918c5fbf4f9fff22b4ac2681706d90",
+        "rev": "f1bad50880bae73ff2d82fafc22010b4fc097a9c",
         "type": "github"
       },
       "original": {
@@ -383,11 +381,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1723175592,
-        "narHash": "sha256-M0xJ3FbDUc4fRZ84dPGx5VvgFsOzds77KiBMW/mMTnI=",
+        "lastModified": 1723991338,
+        "narHash": "sha256-Grh5PF0+gootJfOJFenTTxDTYPidA3V28dqJ/WV7iis=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "5e0ca22929f3342b19569b21b2f3462f053e497b",
+        "rev": "8a3354191c0d7144db9756a74755672387b702ba",
         "type": "github"
       },
       "original": {
@@ -399,11 +397,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1723175592,
-        "narHash": "sha256-M0xJ3FbDUc4fRZ84dPGx5VvgFsOzds77KiBMW/mMTnI=",
+        "lastModified": 1723637854,
+        "narHash": "sha256-med8+5DSWa2UnOqtdICndjDAEjxr5D7zaIiK4pn0Q7c=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "5e0ca22929f3342b19569b21b2f3462f053e497b",
+        "rev": "c3aa7b8938b17aebd2deecf7be0636000d62a2b9",
         "type": "github"
       },
       "original": {
@@ -414,6 +412,22 @@
       }
     },
     "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1723991338,
+        "narHash": "sha256-Grh5PF0+gootJfOJFenTTxDTYPidA3V28dqJ/WV7iis=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "8a3354191c0d7144db9756a74755672387b702ba",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_4": {
       "locked": {
         "lastModified": 1710272261,
         "narHash": "sha256-g0bDwXFmTE7uGDOs9HcJsfLFhH7fOsASbAuOzDC+fhQ=",
@@ -435,7 +449,7 @@
         "emacs-overlay": "emacs-overlay",
         "home-manager": "home-manager",
         "hyprland": "hyprland",
-        "nixpkgs": "nixpkgs_2",
+        "nixpkgs": "nixpkgs_3",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "rose-pine-hyprcursor": "rose-pine-hyprcursor",
         "sops-nix": "sops-nix"
@@ -444,7 +458,7 @@
     "rose-pine-hyprcursor": {
       "inputs": {
         "hyprlang": "hyprlang_2",
-        "nixpkgs": "nixpkgs_3",
+        "nixpkgs": "nixpkgs_4",
         "utils": "utils"
       },
       "locked": {
@@ -469,11 +483,11 @@
         "nixpkgs-stable": "nixpkgs-stable_2"
       },
       "locked": {
-        "lastModified": 1722897572,
-        "narHash": "sha256-3m/iyyjCdRBF8xyehf59QlckIcmShyTesymSb+N4Ap4=",
+        "lastModified": 1723501126,
+        "narHash": "sha256-N9IcHgj/p1+2Pvk8P4Zc1bfrMwld5PcosVA0nL6IGdE=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "8ae477955dfd9cbf5fa4eb82a8db8ddbb94e79d9",
+        "rev": "be0eec2d27563590194a9206f551a6f73d52fa34",
         "type": "github"
       },
       "original": {
diff --git a/hosts/sakotop/configuration.nix b/hosts/sakotop/configuration.nix
index 33c0e149..61ade5ac 100644
--- a/hosts/sakotop/configuration.nix
+++ b/hosts/sakotop/configuration.nix
@@ -118,6 +118,7 @@
       newsboat.enable = true;
       ranger.enable = true;
       aria.enable = true;
+      cachix.enable = true;
     };
     media = {
       mpd.enable = true;
diff --git a/modules/shell/cachix/default.nix b/modules/shell/cachix/default.nix
new file mode 100644
index 00000000..1715baad
--- /dev/null
+++ b/modules/shell/cachix/default.nix
@@ -0,0 +1,15 @@
+{ outputs, options, config, lib, pkgs, ...}:
+let
+  cfg = config.modules.shell.cachix;
+in
+{
+  options.modules.shell.cachix = {
+    enable = lib.mkEnableOption false;
+  };
+
+  config = lib.mkIf cfg.enable {
+    users.users.sako.packages = with pkgs; [
+      cachix
+    ];
+  };
+}
diff --git a/modules/shell/default.nix b/modules/shell/default.nix
index 1d4e6b93..0336285f 100644
--- a/modules/shell/default.nix
+++ b/modules/shell/default.nix
@@ -6,5 +6,6 @@
     ./newsboat
     ./ranger
     ./aria
+    ./cachix
   ];
 }