diff --git a/packages/reffuse/src/Reffuse.tsx b/packages/reffuse/src/Reffuse.ts
similarity index 77%
rename from packages/reffuse/src/Reffuse.tsx
rename to packages/reffuse/src/Reffuse.ts
index 5b4f062..ce959b4 100644
--- a/packages/reffuse/src/Reffuse.tsx
+++ b/packages/reffuse/src/Reffuse.ts
@@ -1,38 +1,18 @@
-import { Context, Effect, Fiber, Layer, ManagedRuntime, Ref, Runtime, Scope, Stream, SubscriptionRef } from "effect"
+import { Context, Effect, Fiber, FiberRefs, Ref, Runtime, RuntimeFlags, Scope, Stream, SubscriptionRef } from "effect"
 import React from "react"
-import * as ReffuseReactContext from "./ReffuseReactContext.js"
-
-
-export interface ProviderProps<R, E> {
-    readonly layer: Layer.Layer<R, E>
-    readonly children?: React.ReactNode
-}
+import type * as ReffuseReactContext from "./ReffuseReactContext.js"
+import * as ReffuseReactContextProvider from "./ReffuseReactContextProvider.js"
 
 
 export class Reffuse<R> {
 
     readonly Context = React.createContext<ReffuseReactContext.ReffuseReactContext<R>>(null!)
-    readonly Provider: React.FC<ProviderProps<R, unknown>>
+    readonly Provider: ReffuseReactContextProvider.ReffuseReactContextProvider<R>
 
     constructor(
-        runtime: Runtime.Runtime<R>
+        runtime: Runtime.Runtime<never>
     ) {
-        this.Provider = (props: ProviderProps<R, unknown>) => {
-            const value = React.useMemo(() => ({
-                runtime,
-                context: Effect.context<R>().pipe(
-                    Effect.provide(props.layer),
-                    Runtime.runSync(runtime),
-                ),
-            }), [props.layer])
-
-            return (
-                <this.Context
-                    {...props}
-                    value={value}
-                />
-            )
-        }
+        this.Provider = ReffuseReactContextProvider.make(runtime, this.Context)
     }
 
 
@@ -131,4 +111,8 @@ export class Reffuse<R> {
 
 
 export const make = <R>(): Reffuse<R> =>
-    new Reffuse(ManagedRuntime.make(layer))
+    new Reffuse(Runtime.make({
+        context: Context.empty(),
+        runtimeFlags: RuntimeFlags.make(),
+        fiberRefs: FiberRefs.empty(),
+    }))
diff --git a/packages/reffuse/src/ReffuseReactContextProvider.tsx b/packages/reffuse/src/ReffuseReactContextProvider.tsx
index e69de29..f0d0ad7 100644
--- a/packages/reffuse/src/ReffuseReactContextProvider.tsx
+++ b/packages/reffuse/src/ReffuseReactContextProvider.tsx
@@ -0,0 +1,34 @@
+import { Effect, Runtime, type Layer } from "effect"
+import React from "react"
+import type * as ReffuseReactContext from "./ReffuseReactContext.js"
+
+
+export interface Props<R> {
+    readonly layer: Layer.Layer<R, unknown>
+    readonly children?: React.ReactNode
+}
+
+export type ReffuseReactContextProvider<R> = React.FC<Props<R>>
+
+
+export function make<R>(
+    runtime: Runtime.Runtime<never>,
+    Context: React.Context<ReffuseReactContext.ReffuseReactContext<R>>,
+) {
+    return function ReffuseReactContextProvider(props: Props<R>) {
+        const value = React.useMemo(() => ({
+            runtime,
+            context: Effect.context<R>().pipe(
+                Effect.provide(props.layer),
+                Runtime.runSync(runtime),
+            ),
+        }), [props.layer])
+
+        return (
+            <Context
+                {...props}
+                value={value}
+            />
+        )
+    }
+}