diff --git a/db.go b/db.go
index 61e2e65..ab328b5 100644
--- a/db.go
+++ b/db.go
@@ -55,11 +55,13 @@ func GetDB() (DB, error) {
 	}
 
 	// ClickHouse connection - use HTTP interface on port 8123
+	// Change "localhost" to your Linux host IP or hostname
 	options := &clickhouse.Options{
-		Addr: []string{"localhost:8123"},
+		Addr: []string{"clickhouse.site.quack-lab.dev"}, // TODO: Change to your Linux host, e.g., "192.168.1.100:8123" or "clickhouse.example.com:8123"
 		Auth: clickhouse.Auth{
 			Database: "zkill",
 			Username: "default",
+			Password: "", // Set if you configure a password on Linux host
 		},
 		Protocol: clickhouse.HTTP,
 	}
@@ -188,8 +190,53 @@ func (db *DBWrapper) SaveKillmails(killmails []Killmail) error {
 			flat := km.FlattenKillmail()
 			modules := km.ExtractFittedModules()
 
+			// Convert attackers to slice of slices for ClickHouse Array(Tuple(...))
+			attackersSlice := make([][]interface{}, len(flat.Attackers))
+			for j, a := range flat.Attackers {
+				attackersSlice[j] = []interface{}{
+					a.CharacterID,
+					a.CorporationID,
+					a.AllianceID,
+					a.ShipTypeID,
+					a.WeaponTypeID,
+					a.DamageDone,
+					a.FinalBlow,
+					a.SecurityStatus,
+				}
+			}
+
+			// Convert items to slice of slices
+			itemsSlice := make([][]interface{}, len(flat.Items))
+			for j, item := range flat.Items {
+				itemsSlice[j] = []interface{}{
+					item.Flag,
+					item.ItemTypeID,
+					item.QuantityDestroyed,
+					item.QuantityDropped,
+					item.Singleton,
+				}
+			}
+
 			// Append to flat_killmails batch
-			if err := flatBatch.AppendStruct(flat); err != nil {
+			if err := flatBatch.Append(
+				flat.KillmailID,
+				flat.KillmailTime,
+				flat.SolarSystemID,
+				flat.KillmailHash,
+				flat.VictimShipTypeID,
+				flat.VictimCharacterID,
+				flat.VictimCorporationID,
+				flat.VictimAllianceID,
+				flat.VictimDamageTaken,
+				flat.VictimPosX,
+				flat.VictimPosY,
+				flat.VictimPosZ,
+				flat.AttackerCount,
+				flat.TotalDamageDone,
+				flat.FinalBlowShipType,
+				attackersSlice,
+				itemsSlice,
+			); err != nil {
 				return fmt.Errorf("failed to append flat killmail: %w", err)
 			}