diff --git a/core/index.go b/core/index.go
index 4abd4b6..88ffe3c 100644
--- a/core/index.go
+++ b/core/index.go
@@ -170,22 +170,33 @@ func parsePages(resp string) (*struct {
 	return &pages, nil
 }
 
-// populateFollowing populates the Following field in LandingArtworks with artworks
-// from artists that the user is following.
-func populateFollowing(followIDs []int, artworks map[string]ArtworkBrief) []ArtworkBrief {
-	following := make([]ArtworkBrief, 0, len(followIDs))
-
-	for _, id := range followIDs {
-		// Convert integer ID to string to match the keys in the artworks map
-		if artwork, exists := artworks[fmt.Sprint(id)]; exists {
-			following = append(following, artwork)
+// populateArtworks is a generic helper function that maps a slice of string IDs
+// to their corresponding ArtworkBrief objects.
+func populateArtworks(ids []string, artworks map[string]ArtworkBrief) []ArtworkBrief {
+	populated := make([]ArtworkBrief, 0, len(ids))
+	for _, id := range ids {
+		if artwork, exists := artworks[id]; exists {
+			populated = append(populated, artwork)
 		}
 	}
-	return following
+	return populated
 }
 
-// populateRecommendedByTags populates the RecommendByTags field in LandingArtworks
-// with artworks grouped under each recommended tag.
+// populateFollowing converts int IDs to strings and uses the generic helper.
+func populateFollowing(followIDs []int, artworks map[string]ArtworkBrief) []ArtworkBrief {
+	stringIDs := make([]string, 0, len(followIDs))
+	for _, id := range followIDs {
+		stringIDs = append(stringIDs, fmt.Sprint(id))
+	}
+	return populateArtworks(stringIDs, artworks)
+}
+
+// populateRecommended uses the generic helper.
+func populateRecommended(recommendedIDs []string, artworks map[string]ArtworkBrief) []ArtworkBrief {
+	return populateArtworks(recommendedIDs, artworks)
+}
+
+// populateRecommendedByTags uses the generic helper for each tag's IDs.
 func populateRecommendedByTags(recommends []struct {
 	Name string   `json:"tag"`
 	IDs  []string `json:"ids"`
@@ -194,12 +205,7 @@ func populateRecommendedByTags(recommends []struct {
 	recommendByTags := make([]RecommendedTags, 0, len(recommends))
 
 	for _, r := range recommends {
-		artworksList := make([]ArtworkBrief, 0, len(r.IDs))
-		for _, id := range r.IDs {
-			if artwork, exists := artworks[id]; exists {
-				artworksList = append(artworksList, artwork)
-			}
-		}
+		artworksList := populateArtworks(r.IDs, artworks)
 		recommendByTags = append(recommendByTags, RecommendedTags{
 			Name:     r.Name,
 			Artworks: artworksList,
@@ -208,20 +214,6 @@ func populateRecommendedByTags(recommends []struct {
 	return recommendByTags
 }
 
-// populateRecommended populates the Recommended field in LandingArtworks with general recommended artworks.
-//
-// It filters and maps recommended artwork IDs to their corresponding ArtworkBrief structs.
-func populateRecommended(recommendedIDs []string, artworks map[string]ArtworkBrief) []ArtworkBrief {
-	recommended := make([]ArtworkBrief, 0, len(recommendedIDs))
-
-	for _, id := range recommendedIDs {
-		if artwork, exists := artworks[id]; exists {
-			recommended = append(recommended, artwork)
-		}
-	}
-	return recommended
-}
-
 // fetchRankings retrieves the current rankings based on the selected mode.
 //
 // It maps the landing page mode to the appropriate ranking mode and fetches the ranking data.