fix: fixed publish dates for builds

flake.nix

@@ -18,16 +18,21 @@
         f {
           pkgs = import nixpkgs {inherit overlays system;};
         });
+
+    realSrc = /. + (builtins.getEnv "PWD");
   in {
     packages = forEachSupportedSystem ({pkgs}: {
       default = pkgs.callPackage ./nix/package.nix {
         siteUrl = "https://blog.jan-leila.com";
+        src = realSrc;
       };
       blog = pkgs.callPackage ./nix/package.nix {
         siteUrl = "https://blog.jan-leila.com";
+        src = realSrc;
       };
       volpe = pkgs.callPackage ./nix/package.nix {
         siteUrl = "https://volpe.jan-leila.com";
+        src = realSrc;
       };
     });
 
@@ -58,7 +63,8 @@
           echo "Building and deploying to cyberian@69.61.19.180..."
           nixos-rebuild switch --flake .#volpe \
             --target-host cyberian@69.61.19.180 \
-            --sudo
+            --sudo \
+            --impure
         '');
       };
     });