diff --git a/.changeset/breezy-waves-float.md b/.changeset/breezy-waves-float.md
new file mode 100644
index 0000000..2634090
--- /dev/null
+++ b/.changeset/breezy-waves-float.md
@@ -0,0 +1,7 @@
+---
+"@effect-rx/rx-react": minor
+"@effect-rx/rx": minor
+"@effect-rx/rx-vue": minor
+---
+
+revert keepAlive removal
diff --git a/packages/rx-react/src/index.ts b/packages/rx-react/src/index.ts
index 8f54b5a..007471e 100644
--- a/packages/rx-react/src/index.ts
+++ b/packages/rx-react/src/index.ts
@@ -42,7 +42,8 @@ function scheduleTask(f: () => void): void {
  * @category context
  */
 export const RegistryContext = React.createContext<Registry.Registry>(Registry.make({
-  scheduleTask
+  scheduleTask,
+  defaultIdleTTL: 150
 }))
 
 interface RxStore<A> {
diff --git a/packages/rx/src/Registry.ts b/packages/rx/src/Registry.ts
index 942efcc..384dd19 100644
--- a/packages/rx/src/Registry.ts
+++ b/packages/rx/src/Registry.ts
@@ -40,5 +40,6 @@ export const make: (
     readonly initialValues?: Iterable<readonly [Rx.Rx<any>, any]> | undefined
     readonly scheduleTask?: ((f: () => void) => void) | undefined
     readonly timeoutResolution?: number | undefined
+    readonly defaultIdleTTL?: number | undefined
   } | undefined
 ) => Registry = internal.make
diff --git a/packages/rx/src/internal/registry.ts b/packages/rx/src/internal/registry.ts
index a2160f8..fab2601 100644
--- a/packages/rx/src/internal/registry.ts
+++ b/packages/rx/src/internal/registry.ts
@@ -21,11 +21,13 @@ export const make = (options?: {
   readonly initialValues?: Iterable<readonly [Rx.Rx<any>, any]> | undefined
   readonly scheduleTask?: ((f: () => void) => void) | undefined
   readonly timeoutResolution?: number | undefined
+  readonly defaultIdleTTL?: number | undefined
 }): Registry.Registry =>
   new RegistryImpl(
     options?.initialValues,
     options?.scheduleTask,
-    options?.timeoutResolution
+    options?.timeoutResolution,
+    options?.defaultIdleTTL
   )
 
 class RegistryImpl implements Registry.Registry {
@@ -33,7 +35,8 @@ class RegistryImpl implements Registry.Registry {
   constructor(
     initialValues?: Iterable<readonly [Rx.Rx<any>, any]>,
     readonly scheduleTask = queueMicrotask,
-    readonly timeoutResolution = 5000
+    readonly timeoutResolution = 5000,
+    readonly defaultIdleTTL?: number
   ) {
     this[TypeId] = TypeId
     if (initialValues !== undefined) {
@@ -89,7 +92,7 @@ class RegistryImpl implements Registry.Registry {
     if (node === undefined) {
       node = this.createNode(rx)
       this.nodes.set(rx, node)
-    } else if (!rx.keepAlive && rx.idleTTL) {
+    } else if (!rx.keepAlive && (rx.idleTTL || this.defaultIdleTTL)) {
       this.removeNodeTimeout(node)
     }
     return node
@@ -128,7 +131,7 @@ class RegistryImpl implements Registry.Registry {
   }
 
   removeNode(node: Node<any>): void {
-    if (node.rx.idleTTL) {
+    if (!node.rx.keepAlive && (node.rx.idleTTL || this.defaultIdleTTL)) {
       this.setNodeTimeout(node)
     } else {
       this.nodes.delete(node.rx)
@@ -141,7 +144,8 @@ class RegistryImpl implements Registry.Registry {
       return
     }
 
-    const ttl = Math.ceil(node.rx.idleTTL! / this.timeoutResolution) * this.timeoutResolution
+    const idleTTL = node.rx.idleTTL ?? this.defaultIdleTTL!
+    const ttl = Math.ceil(idleTTL! / this.timeoutResolution) * this.timeoutResolution
     const timestamp = Date.now() + ttl
     const bucket = timestamp - (timestamp % this.timeoutResolution) + this.timeoutResolution
 
diff --git a/packages/rx/test/Rx.test.ts b/packages/rx/test/Rx.test.ts
index a9d3ca5..671265e 100644
--- a/packages/rx/test/Rx.test.ts
+++ b/packages/rx/test/Rx.test.ts
@@ -630,16 +630,14 @@ describe("Rx", () => {
   })
 
   it("idleTTL", async () => {
-    const state = Rx.make(0).pipe(
-      Rx.setIdleTTL(2000)
-    )
+    const state = Rx.make(0)
     const state2 = Rx.make(0).pipe(
       Rx.setIdleTTL(10000)
     )
     const state3 = Rx.make(0).pipe(
       Rx.setIdleTTL(3000)
     )
-    const r = Registry.make()
+    const r = Registry.make({ defaultIdleTTL: 2000 })
     r.set(state, 10)
     r.set(state2, 10)
     r.set(state3, 10)