iplan: modernize

Signed-off-by: Ethan Carter Edwards <ethan@ethancedwards.com>

pkgs/by-name/ip/iplan/package.nix

@@ -13,19 +13,22 @@
   libadwaita,
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "iplan";
   version = "1.9.2";
 
+  strictDeps = true;
+  __structuredAttrs = true;
+
   src = fetchFromGitHub {
     owner = "iman-salmani";
     repo = "iplan";
-    rev = "v${version}";
+    tag = "v${finalAttrs.version}";
     hash = "sha256-BIoxaE8c3HmvPjgj4wcZK9YFTZ0wr9338AIdYEoAiqs=";
   };
 
   cargoDeps = rustPlatform.fetchCargoVendor {
-    inherit pname version src;
+    inherit (finalAttrs) pname version src;
     hash = "sha256-ATEm7RYfW9nYtTDAx580tvokVUIS7BL9mA65aEeJJvk=";
   };
 
@@ -52,4 +55,4 @@ stdenv.mkDerivation rec {
     maintainers = with lib.maintainers; [ aleksana ];
     platforms = lib.platforms.linux;
   };
-}
+})