diff --git a/nix/flake.lock b/nix/flake.lock
index fac5973..a9fa5d6 100644
--- a/nix/flake.lock
+++ b/nix/flake.lock
@@ -363,11 +363,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1720289319,
-        "narHash": "sha256-E3CjSsXNDWYqoNjrKQLPdEZDLR+mVI9HMa+jY//FjBY=",
+        "lastModified": 1720327769,
+        "narHash": "sha256-kAsg3Lg4YKKpGw+f1W2s5hzjP8B0y/juowvjK8utIag=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "10486e6b311b3c5ae1c3477fee058704cea7cb4a",
+        "rev": "6b7ce96f34b324e4e104abc30d06955d216bac71",
         "type": "github"
       },
       "original": {
@@ -628,11 +628,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1719720450,
-        "narHash": "sha256-57+R2Uj3wPeDeq8p8un19tzFFlgWiXJ8PbzgKtBgBX8=",
+        "lastModified": 1720282526,
+        "narHash": "sha256-dudRkHPRivMNOhd04YI+v4sWvn2SnN5ODSPIu5IVbco=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "78f8641796edff3bfabbf1ef5029deadfe4a21d0",
+        "rev": "550ac3e955c30fe96dd8b2223e37e0f5d225c927",
         "type": "github"
       },
       "original": {
@@ -820,11 +820,11 @@
     },
     "nixpkgs_20": {
       "locked": {
-        "lastModified": 1719468428,
-        "narHash": "sha256-vN5xJAZ4UGREEglh3lfbbkIj+MPEYMuqewMn4atZFaQ=",
+        "lastModified": 1720181791,
+        "narHash": "sha256-i4vJL12/AdyuQuviMMd1Hk2tsGt02hDNhA0Zj1m16N8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "1e3deb3d8a86a870d925760db1a5adecc64d329d",
+        "rev": "4284c2b73c8bce4b46a6adf23e16d9e2ec8da4bb",
         "type": "github"
       },
       "original": {
@@ -946,11 +946,11 @@
     },
     "nur": {
       "locked": {
-        "lastModified": 1720295364,
-        "narHash": "sha256-clwkx3bqmlWPbAtywxJoqw0K7pEVUvQj5BArCqZxcUQ=",
+        "lastModified": 1720340553,
+        "narHash": "sha256-yltkWY9tbcTO1E9lsegEUcqcHdF+F3Yb8O79CjSAHrg=",
         "owner": "nix-community",
         "repo": "nur",
-        "rev": "196f75d02c4a5662ac22763c1be690f91e21ef7b",
+        "rev": "64eb60afcb54464e61d34fda417e7a5c7a935c21",
         "type": "github"
       },
       "original": {
@@ -1260,11 +1260,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1720187017,
-        "narHash": "sha256-Zq+T1Bvd0ShZB9XM+bP0VJK3HjsSVQBLolkaCLBQnfQ=",
+        "lastModified": 1720321395,
+        "narHash": "sha256-kcI8q9Nh8/CSj0ygfWq1DLckHl8IHhFarL8ie6g7OEk=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "1b11e208cee97c47677439625dc22e5289dcdead",
+        "rev": "c184aca4db5d71c3db0c8cbfcaaec337a5d065ea",
         "type": "github"
       },
       "original": {
diff --git a/nix/programs/common.nix b/nix/programs/common.nix
index 522479e..be77e8d 100644
--- a/nix/programs/common.nix
+++ b/nix/programs/common.nix
@@ -55,6 +55,7 @@ in
     flake-checker
     ffmpeg
     system-config-printer
+    brightnessctl
     (callPackage
       ../override/cambalache.nix
       { })