fix: use replaceVars instead of substituteAll

The latter is deprecated in latest nixpkgs.

Also, update inputs to non-ancient versions.

flake.lock

@@ -7,11 +7,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1700795494,
-        "narHash": "sha256-gzGLZSiOhf155FW7262kdHo2YDeugp3VuIFb4/GGng0=",
+        "lastModified": 1744478979,
+        "narHash": "sha256-dyN+teG9G82G+m+PX/aSAagkC+vUv0SgUw3XkPhQodQ=",
         "owner": "lnl7",
         "repo": "nix-darwin",
-        "rev": "4b9b83d5a92e8c1fbfd8eb27eda375908c11ec4d",
+        "rev": "43975d782b418ebf4969e9ccba82466728c2851b",
         "type": "github"
       },
       "original": {
@@ -28,11 +28,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1703113217,
-        "narHash": "sha256-7ulcXOk63TIT2lVDSExj7XzFx09LpdSAPtvgtM7yQPE=",
+        "lastModified": 1745494811,
+        "narHash": "sha256-YZCh2o9Ua1n9uCvrvi5pRxtuVNml8X2a03qIFfRKpFs=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "3bfaacf46133c037bb356193bd2f1765d9dc82c1",
+        "rev": "abfad3d2958c9e6300a883bd443512c55dfeb1be",
         "type": "github"
       },
       "original": {
@@ -43,11 +43,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1703013332,
-        "narHash": "sha256-+tFNwMvlXLbJZXiMHqYq77z/RfmpfpiI3yjL6o/Zo9M=",
+        "lastModified": 1745391562,
+        "narHash": "sha256-sPwcCYuiEopaafePqlG826tBhctuJsLx/mhKKM5Fmjo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "54aac082a4d9bb5bbc5c4e899603abfb76a3f6d6",
+        "rev": "8a2f738d9d1f1d986b5a4cd2fd2061a7127237d7",
         "type": "github"
       },
       "original": {

pkgs/agenix.nix

@@ -6,7 +6,7 @@
   nix,
   mktemp,
   diffutils,
-  substituteAll,
+  replaceVars,
   ageBin ? "${age}/bin/age",
   shellcheck,
 }: let
@@ -15,13 +15,12 @@ in
   stdenv.mkDerivation rec {
     pname = "agenix";
     version = "0.15.0";
-    src = substituteAll {
+    src = replaceVars ./agenix.sh {
       inherit ageBin version;
       jqBin = "${jq}/bin/jq";
       nixInstantiate = "${nix}/bin/nix-instantiate";
       mktempBin = "${mktemp}/bin/mktemp";
       diffBin = "${diffutils}/bin/diff";
-      src = ./agenix.sh;
     };
     dontUnpack = true;
     doInstallCheck = true;

test/install_ssh_host_keys_darwin.nix

@@ -8,10 +8,10 @@
     sudo chmod 600 /etc/ssh/ssh_host_ed25519_key
 
     echo "Installing user SSH host key"
-    mkdir -p $HOME/.ssh
-    cp ${../example_keys/user1.pub} $HOME/.ssh/id_ed25519.pub
-    cp ${../example_keys/user1} $HOME/.ssh/id_ed25519
-    chmod 644 $HOME/.ssh/id_ed25519.pub
-    chmod 600 $HOME/.ssh/id_ed25519
+    mkdir -p "$HOME/.ssh"
+    cp ${../example_keys/user1.pub} "$HOME/.ssh/id_ed25519.pub"
+    cp ${../example_keys/user1} "$HOME/.ssh/id_ed25519"
+    chmod 644 "$HOME/.ssh/id_ed25519.pub"
+    chmod 600 "$HOME/.ssh/id_ed25519"
   '';
 }

test/integration_darwin.nix

@@ -17,12 +17,12 @@ in {
     ../modules/age.nix
   ];
 
-  services.nix-daemon.enable = true;
-
   age = {
     identityPaths = options.age.identityPaths.default ++ ["/etc/ssh/this_key_wont_exist"];
     secrets.system-secret.file = ../example/secret1.age;
   };
 
   environment.systemPackages = [testScript];
+
+  system.stateVersion = 6;
 }