diff --git a/bun.lockb b/bun.lockb
index da6985e..ab3040c 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/package.json b/package.json
index 9c6b940..d0dc5f7 100644
--- a/package.json
+++ b/package.json
@@ -52,6 +52,7 @@
   },
   "optionalDependencies": {
     "@effect/schema": "^0.67.22",
-    "effect": "^3.3.1"
+    "effect": "^3.3.1",
+    "mobx": "^6.12.3"
   }
 }
diff --git a/src/effect/schema/MobXObservable.ts b/src/effect/schema/MobXObservable.ts
new file mode 100644
index 0000000..ea4cbdb
--- /dev/null
+++ b/src/effect/schema/MobXObservable.ts
@@ -0,0 +1,24 @@
+import type { Class, Struct } from "@effect/schema/Schema"
+import { makeObservable, observable, type CreateObservableOptions } from "mobx"
+import { mapValues } from "remeda"
+
+
+export function MobXObservable<
+    C extends Class<any, Struct.Fields, any, any, any, any, any>
+>(
+    class_:    C,
+    options?:  Omit<CreateObservableOptions, "proxy">,
+) {
+    return class MobXObservable extends (class_ as Class<any, Struct.Fields, any, any, any, any, any>) {
+        declare ["constructor"]: typeof MobXObservable
+
+        constructor(...args: any[]) {
+            super(...args)
+
+            makeObservable(this,
+                mapValues(this.constructor.fields, () => observable),
+                options,
+            )
+        }
+    } as C
+}
diff --git a/src/effect/schema/index.ts b/src/effect/schema/index.ts
index d6234ea..391c95d 100644
--- a/src/effect/schema/index.ts
+++ b/src/effect/schema/index.ts
@@ -1,2 +1,3 @@
+export { MobXObservable } from "./MobXObservable"
 export { MutableClass } from "./MutableClass"
 export type { TMutableClass } from "./MutableClass"