use messagepack to make it even smaller!!!!

lib/b64.ts

@@ -1,11 +1,13 @@
+import m from "msgpack-lite";
+
 // i actually love this
 export const b64encode = (obj: object): string => {
-    return Buffer.from(JSON.stringify(obj)).toString("base64url");
+    return Buffer.from(m.encode(obj)).toString("base64url");
 }
 
 export const b64decode = <T>(str: string): T => {
     try {
-        return JSON.parse(Buffer.from(str, "base64url").toString());
+        return m.decode(Buffer.from(str, "base64url"));
     } catch {
         throw new Error("invalid base64-encoded object string: " + str);
     }