diff --git a/main.go b/main.go
index 81255e7..4164f51 100644
--- a/main.go
+++ b/main.go
@@ -4,8 +4,10 @@ import (
 	"encoding/json"
 	"log"
 	"net/http"
+	"os"
 	"prsi/internal/api"
 	"prsi/internal/llm"
+	"strings"
 )
 
 func main() {
@@ -56,8 +58,23 @@ func main() {
 		json.NewEncoder(w).Encode(result)
 	})
 
-	log.Println("Server starting on :8080")
-	if err := http.ListenAndServe(":8080", nil); err != nil {
+	addr := serverAddr()
+	log.Printf("Server starting on %s", addr)
+	if err := http.ListenAndServe(addr, nil); err != nil {
 		log.Fatal("ListenAndServe:", err)
 	}
 }
+
+func serverAddr() string {
+	port := strings.TrimSpace(os.Getenv("PORT"))
+	if port == "" {
+		port = strings.TrimSpace(os.Getenv("APP_PORT"))
+	}
+	if port == "" {
+		port = "8080"
+	}
+	if strings.HasPrefix(port, ":") {
+		return port
+	}
+	return ":" + port
+}
diff --git a/prsi b/prsi
index 703adc7..1f6d479 100755
Binary files a/prsi and b/prsi differ