ncps: organise the derivation attrs a bit

pkgs/by-name/nc/ncps/package.nix

@@ -42,17 +42,14 @@ let
       hash = "sha256-qc6h1gnU7dFyb0GiBq++E2yf49K7mO86Vwdf8y3817U=";
     };
 
+    vendorHash = "sha256-nnt4HIG4Fs7RhHjVb7mYJ39UgvFKc46Cu42cURMmr1s=";
+
     ldflags = [
       "-X github.com/kalbasit/ncps/cmd.Version=v${finalAttrs.version}"
     ];
 
-    vendorHash = "sha256-nnt4HIG4Fs7RhHjVb7mYJ39UgvFKc46Cu42cURMmr1s=";
-
     subPackages = [ "." ];
 
-    doCheck = true;
-    checkFlags = [ "-race" ];
-
     nativeBuildInputs = [
       curl # used for checking MinIO health check
       dbmate # used for testing
@@ -66,6 +63,20 @@ let
       makeWrapper # For wrapping dbmate.
     ];
 
+    postInstall = ''
+      mkdir -p $out/share/ncps
+      cp -r db $out/share/ncps/db
+
+      makeWrapper ${dbmate-wrapper}/bin/dbmate-wrapper \
+        $out/bin/dbmate-ncps \
+        --prefix PATH : ${dbmate-real}/bin \
+        --set NCPS_DB_MIGRATIONS_DIR $out/share/ncps/db/migrations
+    '';
+
+    doCheck = true;
+
+    checkFlags = [ "-race" ];
+
     # pre and post checks
     preCheck = ''
       # Set up cleanup trap to ensure background processes are killed even if tests fail
@@ -83,16 +94,6 @@ let
       source $src/nix/packages/ncps/pre-check-redis.sh
     '';
 
-    postInstall = ''
-      mkdir -p $out/share/ncps
-      cp -r db $out/share/ncps/db
-
-      makeWrapper ${dbmate-wrapper}/bin/dbmate-wrapper \
-        $out/bin/dbmate-ncps \
-        --prefix PATH : ${dbmate-real}/bin \
-        --set NCPS_DB_MIGRATIONS_DIR $out/share/ncps/db/migrations
-    '';
-
     meta = {
       description = "Nix binary cache proxy service";
       homepage = "https://github.com/kalbasit/ncps";