add configuration

config.edn

@@ -0,0 +1 @@
+{:origin "https://lnks.esy.fun"}

src/lynks/main.clj

@@ -1,11 +1,21 @@
 (ns lynks.main
   (:require [org.httpkit.server :as http-kit]
+            [clojure.edn :as edn]
             [lynks.core :refer [app]])
   (:gen-class))
 
-(defn -main [& _args]
-  (let [origin "http://127.0.0.1:13000"]
+(defn -main [& args]
+  (let [config (or (some-> args first slurp clojure.edn/read-string) {})
+        {cfg-listen :listen
+         cfg-port :port
+         cfg-origin :origin} config
+        listen (or cfg-listen "127.0.0.1")
+        port (or cfg-port 13000)
+        origin (or cfg-origin
+                   (when listen
+                     (str "http://" listen
+                          (when port (str ":" port)))))]
     (println origin)
     (http-kit/run-server (app origin)
-                         {:ip "127.0.0.1"
-                          :port 13000})))
+                         {:ip (or listen "127.0.0.1")
+                          :port (or port 13000)})))