diff --git a/akka-persistence/src/main/scala/iw/akka/AkkaZioJsonSerializer.scala b/akka-persistence/src/main/scala/iw/akka/AkkaZioJsonSerializer.scala
new file mode 100644
index 0000000..1f911e2
--- /dev/null
+++ b/akka-persistence/src/main/scala/iw/akka/AkkaZioJsonSerializer.scala
@@ -0,0 +1,37 @@
+package works.iterative.akka
+
+import akka.serialization.*
+import zio.json.*
+import scala.reflect.ClassTag
+
+// Use manifest to ensure the possibility of schema evolution
+class AkkaZioJsonSerializer[T <: AnyRef](
+    override val identifier: Int,
+    manifestDiscriminator: T => String
+)(using JsonCodec[T])(using ClassTag[T])
+    extends SerializerWithStringManifest:
+
+  override def manifest(o: AnyRef): String =
+    o match
+      case p: T => manifestDiscriminator(p)
+      case _ =>
+        throw IllegalArgumentException(
+          s"Invalid object to serialize, expecting ProofEvent, got: ${o}"
+        )
+
+  override def toBinary(o: AnyRef): Array[Byte] =
+    o match
+      case p: T => p.toJson.getBytes("UTF-8")
+      case _ =>
+        throw IllegalArgumentException(
+          s"Invalid object to serialize, expecting ProofEvent, got: ${o}"
+        )
+
+  override def fromBinary(o: Array[Byte], manifest: String): AnyRef =
+    val json = String(o, "UTF-8")
+    json.fromJson[T] match
+      case Left(t) =>
+        throw IllegalStateException(
+          s"Unable to deserialize ProofEvent from $json: $t"
+        )
+      case Right(e) => e

diff --git a/akka-persistence/src/main/scala/iw/akka/AkkaZioJsonSerializer.scala b/akka-persistence/src/main/scala/iw/akka/AkkaZioJsonSerializer.scala
new file mode 100644
index 0000000..1f911e2
--- /dev/null
+++ b/akka-persistence/src/main/scala/iw/akka/AkkaZioJsonSerializer.scala
@@ -0,0 +1,37 @@
+package works.iterative.akka
+
+import akka.serialization.*
+import zio.json.*
+import scala.reflect.ClassTag
+
+// Use manifest to ensure the possibility of schema evolution
+class AkkaZioJsonSerializer[T <: AnyRef](
+    override val identifier: Int,
+    manifestDiscriminator: T => String
+)(using JsonCodec[T])(using ClassTag[T])
+    extends SerializerWithStringManifest:
+
+  override def manifest(o: AnyRef): String =
+    o match
+      case p: T => manifestDiscriminator(p)
+      case _ =>
+        throw IllegalArgumentException(
+          s"Invalid object to serialize, expecting ProofEvent, got: ${o}"
+        )
+
+  override def toBinary(o: AnyRef): Array[Byte] =
+    o match
+      case p: T => p.toJson.getBytes("UTF-8")
+      case _ =>
+        throw IllegalArgumentException(
+          s"Invalid object to serialize, expecting ProofEvent, got: ${o}"
+        )
+
+  override def fromBinary(o: Array[Byte], manifest: String): AnyRef =
+    val json = String(o, "UTF-8")
+    json.fromJson[T] match
+      case Left(t) =>
+        throw IllegalStateException(
+          s"Unable to deserialize ProofEvent from $json: $t"
+        )
+      case Right(e) => e
diff --git a/codecs/src/main/scala/works/iterative/core/codecs/Codecs.scala b/codecs/src/main/scala/works/iterative/core/codecs/Codecs.scala
index a236978..46f4dbe 100644
--- a/codecs/src/main/scala/works/iterative/core/codecs/Codecs.scala
+++ b/codecs/src/main/scala/works/iterative/core/codecs/Codecs.scala
@@ -20,7 +20,7 @@
   def fromValidation[T](v: Validation[UserMessage, T]): Either[String, T] =
     v.mapError(_.id).toEither.left.map(_.mkString(","))
 
-  private def textCodec[T](
+  def textCodec[T](
       f: String => Validation[UserMessage, T]
   ): JsonCodec[T] =
     JsonCodec.string.transformOrFail(f andThen fromValidation, _.toString)
@@ -39,6 +39,8 @@
   given JsonCodec[Avatar] = textCodec(Avatar.apply)
   given JsonCodec[BasicProfile] = DeriveJsonCodec.gen[BasicProfile]
 
+  given JsonCodec[FileRef] = DeriveJsonCodec.gen[FileRef]
+
 trait TapirCodecs extends CustomTapir:
   given Schema[PlainMultiLine] = Schema.string
   given Schema[PlainOneLine] = Schema.string
@@ -49,5 +51,6 @@
   given Schema[Avatar] = Schema.string
   given Schema[Email] = Schema.string
   given Schema[BasicProfile] = Schema.derived[BasicProfile]
+  given Schema[FileRef] = Schema.derived[FileRef]
 
 object Codecs extends Codecs