hentai-at-home: add meta.platforms, fix meta.description & refactor

pkgs/by-name/he/hentai-at-home/package.nix

@@ -1,19 +1,19 @@
 {
-  buildPackages,
-  fetchzip,
-  javaOpts ? "-XX:+UseZGC",
-  jdk,
-  jre_headless,
   lib,
-  makeWrapper,
   stdenvNoCC,
+  fetchzip,
+  jdk,
+  makeWrapper,
+  buildPackages,
+  jre_headless,
+  javaOpts ? "-XX:+UseZGC",
 }:
-stdenvNoCC.mkDerivation rec {
+stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "hentai-at-home";
   version = "1.6.3";
 
   src = fetchzip {
-    url = "https://repo.e-hentai.org/hath/HentaiAtHome_${version}_src.zip";
+    url = "https://repo.e-hentai.org/hath/HentaiAtHome_${finalAttrs.version}_src.zip";
     hash = "sha512-kBB5mn9MwpkZ0z+Fl5ABs4YWBkXkMRcADYSAPkeifyhbYQQPOnijXKYZCkzE4UB3uQ1j6Kj6WnpO/4jquYEiOQ==";
     stripRoot = false;
   };
@@ -52,9 +52,10 @@ stdenvNoCC.mkDerivation rec {
 
   meta = with lib; {
     homepage = "https://ehwiki.org/wiki/Hentai@Home";
-    description = "Hentai@Home is an open-source P2P gallery distribution system which reduces the load on the E-Hentai Galleries";
+    description = "Open-source P2P gallery distribution system which reduces the load on the E-Hentai Galleries";
     license = licenses.gpl3;
     maintainers = with maintainers; [ terrorjack ];
     mainProgram = "HentaiAtHome";
+    platforms = jdk.meta.platforms;
   };
-}
+})