diff --git a/flake.lock b/flake.lock
index 836eb9b..b306c58 100644
--- a/flake.lock
+++ b/flake.lock
@@ -382,6 +382,40 @@
         "type": "github"
       }
     },
+    "nixpkgs_6": {
+      "locked": {
+        "lastModified": 1779560665,
+        "narHash": "sha256-tpyBcxPpcQb8ukyNF7DoCwfSY3VPsxHoYwj00Cayv5o=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "64c08a7ca051951c8eae34e3e3cb1e202fe36786",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "psysonic": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_6"
+      },
+      "locked": {
+        "lastModified": 1782757213,
+        "narHash": "sha256-LbeKiFPK/hYnzkVkfDKNfc1k5d0FB+YeFrRby4PHhpU=",
+        "owner": "Psychotoxical",
+        "repo": "psysonic",
+        "rev": "e66b674937e0f0fe7c2fcdf2b1ae2a448b03c710",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Psychotoxical",
+        "repo": "psysonic",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "disko": "disko",
@@ -392,6 +426,7 @@
         "nix-gaming": "nix-gaming",
         "nixpkgs": "nixpkgs_5",
         "nixpkgs-unstable": "nixpkgs-unstable",
+        "psysonic": "psysonic",
         "try-cli": "try-cli",
         "voxtype": "voxtype",
         "walker": "walker"
diff --git a/flake.nix b/flake.nix
index 48df56a..1e86097 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,21 @@
 {
     description = "Stationette nix config";
 
+    nixConfig = {
+        extra-substituters = [
+            "https://nix-gaming.cachix.org"
+            "https://walker.cachix.org"
+            "https://walker-git.cachix.org"
+            "https://psysonic.cachix.org"
+        ];
+        extra-trusted-public-keys = [
+            "nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="
+            "walker.cachix.org-1:fG8q+uAaMqhsMxWjwvk0IMb4mFPFLqHjuvfwQxE4oJM="
+            "walker-git.cachix.org-1:vmC0ocfPWh0S/vRAQGtChuiZBTAe4wiKDeyyXM0/7pM="
+            "psysonic.cachix.org-1:M9cQyQ7tgvUWOQ5Pyt8ozlMoPLtOZir6MfRuTH9/VYA="
+        ];
+    };
+
     inputs = {
         nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
         nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
@@ -17,7 +32,7 @@
         };
         psysonic = {
             url = "github:Psychotoxical/psysonic";
-            inputs.nixpkgs.follows = "nixpkgs";
+            # inputs.nixpkgs.follows = "nixpkgs"; # psysonic needs rustc 1.95+, nixos-25.11 only has 1.91
         };
         try-cli = {
             url = "github:tobi/try-cli";
@@ -126,17 +141,5 @@
             };
         };
 
-        nix.settings = {
-            extra-substituters = [
-                "https://walker.cachix.org"
-                "https://walker-git.cachix.org"
-            ];
-            extra-trusted-public-keys = [
-                "walker.cachix.org-1:fG8q+uAaMqhsMxWjwvk0IMb4mFPFLqHjuvfwQxE4oJM="
-                "walker-git.cachix.org-1:vmC0ocfPWh0S/vRAQGtChuiZBTAe4wiKDeyyXM0/7pM="
-            ];
-            substituters = ["https://nix-gaming.cachix.org"];
-            trusted-public-keys = ["nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="];
-        };
     };
 }
diff --git a/home/packages.nix b/home/packages.nix
index 40d25d4..34ea9b6 100644
--- a/home/packages.nix
+++ b/home/packages.nix
@@ -25,6 +25,7 @@ in
     };
     home.packages = with pkgs; [
         pkgs-unstable.antigravity # Gemini AI coding assistant
+        pkgs-unstable.antigravity-cli # Gemini AI coding assistant
         bluetui # Bluetooth TUI
         enpass # Password manager
         enpass-cli # Enpass CLI tool
diff --git a/result b/result
new file mode 120000
index 0000000..e28b637
--- /dev/null
+++ b/result
@@ -0,0 +1 @@
+/nix/store/ldv0r3wrdz10h7q483hym4s5jajnmgs2-psysonic-1.50.0-dev
\ No newline at end of file
diff --git a/scratch/psysonic b/scratch/psysonic
new file mode 160000
index 0000000..e66b674
--- /dev/null
+++ b/scratch/psysonic
@@ -0,0 +1 @@
+Subproject commit e66b674937e0f0fe7c2fcdf2b1ae2a448b03c710
diff --git a/system/packages.nix b/system/packages.nix
index fdf83ca..184ac19 100644
--- a/system/packages.nix
+++ b/system/packages.nix
@@ -86,4 +86,19 @@
             runGarbageCollection = true;
         };
     };
+
+    nix.settings = {
+        extra-substituters = [
+            "https://nix-gaming.cachix.org"
+            "https://walker.cachix.org"
+            "https://walker-git.cachix.org"
+            "https://psysonic.cachix.org"
+        ];
+        extra-trusted-public-keys = [
+            "nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="
+            "walker.cachix.org-1:fG8q+uAaMqhsMxWjwvk0IMb4mFPFLqHjuvfwQxE4oJM="
+            "walker-git.cachix.org-1:vmC0ocfPWh0S/vRAQGtChuiZBTAe4wiKDeyyXM0/7pM="
+            "psysonic.cachix.org-1:M9cQyQ7tgvUWOQ5Pyt8ozlMoPLtOZir6MfRuTH9/VYA="
+        ];
+    };
 }