diff --git a/hn.go b/hn.go
index e2a2f52..db84907 100644
--- a/hn.go
+++ b/hn.go
@@ -20,10 +20,20 @@ type Story struct {
 	Url         string
 }
 
+var (
+	HackerNewsUrl         string
+	HackerNewsFirebaseUrl string
+)
+
+func init() {
+	HackerNewsUrl = "https://news.ycombinator.com"
+	HackerNewsFirebaseUrl = "https://hacker-news.firebaseio.com/v0"
+}
+
 func fetchTopStoriesFromHN() []Story {
 	// API docs: https://github.com/HackerNews/API
 
-	url := "https://hacker-news.firebaseio.com/v0/topstories.json"
+	url := fmt.Sprintf("%s/topstories.json", HackerNewsFirebaseUrl)
 	resp, err := http.Get(url)
 	if err != nil {
 		log.Fatal("Error fetching top stories:", err)
diff --git a/sn.go b/sn.go
index c392fe5..48013a6 100644
--- a/sn.go
+++ b/sn.go
@@ -29,10 +29,12 @@ type DupesResponse struct {
 }
 
 var (
+	SnApiUrl   string
 	SnApiToken string
 )
 
 func init() {
+	SnApiUrl = "https://stacker.news/api/graphql"
 	err := godotenv.Load()
 	if err != nil {
 		log.Fatal("Error loading .env file")
@@ -50,8 +52,7 @@ func makeGraphQLRequest(body GraphQLPayload) *http.Response {
 		log.Fatal("Error during json.Marshal:", err)
 	}
 
-	url := "https://stacker.news/api/graphql"
-	req, err := http.NewRequest("POST", url, bytes.NewBuffer(bodyJSON))
+	req, err := http.NewRequest("POST", SnApiUrl, bytes.NewBuffer(bodyJSON))
 	if err != nil {
 		panic(err)
 	}
@@ -64,7 +65,7 @@ func makeGraphQLRequest(body GraphQLPayload) *http.Response {
 		panic(err)
 	}
 
-	log.Printf("POST %s %d\n", url, resp.StatusCode)
+	log.Printf("POST %s %d\n", SnApiUrl, resp.StatusCode)
 
 	return resp
 }