From fc9b58f51f21a6c16bd1587be2434a0b23ad9def Mon Sep 17 00:00:00 2001
From: natxocc <natxocc@gmail.com>
Date: Wed, 25 Mar 2026 19:55:00 +0100
Subject: [PATCH] Persistencia en sigpro

---
 src/sigpro.js | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/sigpro.js b/src/sigpro.js
index 21a26d6..6a88233 100644
--- a/src/sigpro.js
+++ b/src/sigpro.js
@@ -53,9 +53,9 @@
   };
 
   // -------------------------
-  // --- $ = Signal puro ---
+  // --- $ = Signal puro + Persistencia ---
   // -------------------------
-  const $ = (initial) => {
+  const $ = (initial, key = null) => {
     if (typeof initial === "function") {
       const subs = new Set();
       let cached;
@@ -103,6 +103,18 @@
     }
 
     let value = initial;
+
+    if (key) {
+      const saved = localStorage.getItem(key);
+      if (saved !== null) {
+        try {
+          value = JSON.parse(saved);
+        } catch {
+          value = saved;
+        }
+      }
+    }
+
     const subs = new Set();
 
     return (...args) => {
@@ -110,6 +122,10 @@
         const next = typeof args[0] === "function" ? args[0](value) : args[0];
         if (!Object.is(value, next)) {
           value = next;
+          if (key) {
+            localStorage.setItem(key, JSON.stringify(value));
+          }
+
           trigger(subs);
         }
       }