diff --git a/packages/reffuse/src/Reffuse.ts b/packages/reffuse/src/Reffuse.ts
index 801f7bb..acdf0e3 100644
--- a/packages/reffuse/src/Reffuse.ts
+++ b/packages/reffuse/src/Reffuse.ts
@@ -1,51 +1,27 @@
 import { Context, Effect, Fiber, Ref, Runtime, Scope, Stream, SubscriptionRef } from "effect"
 import React from "react"
-import * as ReffuseReactContext from "./ReffuseReactContext.js"
+import * as ReffuseContext from "./ReffuseContext.js"
+import * as ReffuseRuntime from "./ReffuseRuntime.js"
 
 
-export class Reffuse<
-    RuntimeR,
-    ContextR extends ParentContextR | OwnContextR,
-    OwnContextR,
-    ParentContextR = never,
-> {
-
-    readonly Context = React.createContext<ReffuseReactContext.Value<RuntimeR, ContextR>>(null!)
-    readonly Provider: ReffuseReactContext.Provider<RuntimeR, OwnContextR, ParentContextR>
+export class Reffuse<R> {
 
     constructor(
-        private readonly runtime: Runtime.Runtime<RuntimeR>,
-        parent?: Reffuse<RuntimeR, ParentContextR, unknown, unknown>,
-    ) {
-        this.Provider = parent
-            ? ReffuseReactContext.makeNestedProvider(runtime, this.Context, parent)
-            : ReffuseReactContext.makeRootProvider(runtime, this.Context)
-    }
-
-    extend<OwnContextR = never>() {
-        return new Reffuse<
-            RuntimeR,
-            ContextR | OwnContextR,
-            OwnContextR,
-            ContextR
-        >(this.runtime, this)
-    }
+        readonly contexts: readonly ReffuseContext.ReffuseContext<R>[]
+    ) {}
 
 
-    useRuntime(): Runtime.Runtime<RuntimeR> {
-        return React.useContext(this.Context).runtime
-    }
-
-    useContext(): Context.Context<ContextR> {
-        return React.useContext(this.Context).context
+    useContext(): Context.Context<R> {
+        return ReffuseContext.useMergeAll(...this.contexts)
     }
 
 
     useRunSync() {
-        const { runtime, context } = React.useContext(this.Context)
+        const runtime = ReffuseRuntime.useRuntime()
+        const context = this.useContext()
 
         return React.useCallback(<A, E>(
-            effect: Effect.Effect<A, E, RuntimeR | ContextR>
+            effect: Effect.Effect<A, E, R>
         ): A => effect.pipe(
             Effect.provide(context),
             Runtime.runSync(runtime),
@@ -53,10 +29,11 @@ export class Reffuse<
     }
 
     useRunPromise() {
-        const { runtime, context } = React.useContext(this.Context)
+        const runtime = ReffuseRuntime.useRuntime()
+        const context = this.useContext()
 
         return React.useCallback(<A, E>(
-            effect: Effect.Effect<A, E, RuntimeR | ContextR>,
+            effect: Effect.Effect<A, E, R>,
             options?: { readonly signal?: AbortSignal },
         ): Promise<A> => effect.pipe(
             Effect.provide(context),
@@ -65,10 +42,11 @@ export class Reffuse<
     }
 
     useRunFork() {
-        const { runtime, context } = React.useContext(this.Context)
+        const runtime = ReffuseRuntime.useRuntime()
+        const context = this.useContext()
 
         return React.useCallback(<A, E>(
-            effect: Effect.Effect<A, E, RuntimeR | ContextR>,
+            effect: Effect.Effect<A, E, R>,
             options?: Runtime.RunForkOptions,
         ): Fiber.RuntimeFiber<A, E> => effect.pipe(
             Effect.provide(context),
@@ -78,7 +56,7 @@ export class Reffuse<
 
 
     useMemo<A, E>(
-        effect: Effect.Effect<A, E, RuntimeR | ContextR>,
+        effect: Effect.Effect<A, E, R>,
         deps?: React.DependencyList,
         options?: RenderOptions,
     ): A {
@@ -104,7 +82,7 @@ export class Reffuse<
     // }
 
     useSuspense<A, E>(
-        effect: Effect.Effect<A, E, RuntimeR | ContextR>,
+        effect: Effect.Effect<A, E, R>,
         options?: { readonly signal?: AbortSignal },
     ): A {
         const runPromise = this.useRunPromise()
@@ -112,7 +90,7 @@ export class Reffuse<
     }
 
     useFork<A, E>(
-        effect: Effect.Effect<A, E, RuntimeR | ContextR | Scope.Scope>,
+        effect: Effect.Effect<A, E, R | Scope.Scope>,
         deps?: React.DependencyList,
         options?: Runtime.RunForkOptions & RenderOptions,
     ): void {
@@ -136,7 +114,7 @@ export class Reffuse<
         )
     }
 
-    useRefFromEffect<A, E>(effect: Effect.Effect<A, E, RuntimeR | ContextR>): SubscriptionRef.SubscriptionRef<A> {
+    useRefFromEffect<A, E>(effect: Effect.Effect<A, E, R>): SubscriptionRef.SubscriptionRef<A> {
         return this.useMemo(
             effect.pipe(Effect.flatMap(SubscriptionRef.make)),
             [],
@@ -174,9 +152,9 @@ export interface RenderOptions {
 }
 
 
-export const make = <R = never>(): Reffuse<never, R, R> =>
-    new Reffuse(Runtime.defaultRuntime)
-
-export const makeWithRuntime = <R = never>() =>
-    <RuntimeR>(runtime: Runtime.Runtime<RuntimeR>): Reffuse<RuntimeR, R, R> =>
-        new Reffuse(runtime)
+export const make = <
+    const Contexts extends readonly ReffuseContext.ReffuseContext<any>[]
+>(
+    contexts: Contexts
+): Reffuse<{ [K in keyof Contexts]: ReffuseContext.R<Contexts[K]> }[number]> =>
+    new Reffuse(contexts)
diff --git a/packages/reffuse/src/ReffuseReactContext.tsx b/packages/reffuse/src/ReffuseReactContext.tsx
deleted file mode 100644
index d1bcf0e..0000000
--- a/packages/reffuse/src/ReffuseReactContext.tsx
+++ /dev/null
@@ -1,84 +0,0 @@
-import { Context, Effect, Runtime, type Layer } from "effect"
-import React from "react"
-import type * as Reffuse from "./Reffuse.js"
-
-
-export interface Value<RuntimeR, ContextR> {
-    readonly runtime: Runtime.Runtime<RuntimeR>
-    readonly context: Context.Context<ContextR>
-}
-
-
-export type Provider<
-    RuntimeR,
-    OwnContextR,
-    ParentContextR,
-> = React.FC<ProviderProps<RuntimeR, OwnContextR, ParentContextR>>
-
-export interface ProviderProps<
-    RuntimeR,
-    OwnContextR,
-    ParentContextR,
-> {
-    readonly layer: Layer.Layer<OwnContextR, unknown, RuntimeR | ParentContextR>
-    readonly children?: React.ReactNode
-}
-
-export function makeRootProvider<
-    RuntimeR,
-    ContextR extends ParentContextR | OwnContextR,
-    OwnContextR,
-    ParentContextR,
->(
-    runtime: Runtime.Runtime<RuntimeR>,
-    ReactContext: React.Context<Value<RuntimeR, ContextR>>,
-): Provider<RuntimeR, OwnContextR, ParentContextR> {
-    return function ReffuseRootReactContextProvider(props) {
-        const value = React.useMemo(() => ({
-            runtime,
-            context: Effect.context<ContextR>().pipe(
-                Effect.provide(props.layer),
-                Effect.provide(Context.empty() as Context.Context<ParentContextR>), // Just there for type safety. ParentContextR is always never here anyway
-                Runtime.runSync(runtime),
-            ),
-        }), [props.layer])
-
-        return (
-            <ReactContext
-                {...props}
-                value={value}
-            />
-        )
-    }
-}
-
-export function makeNestedProvider<
-    RuntimeR,
-    ContextR extends ParentContextR | OwnContextR,
-    OwnContextR,
-    ParentContextR,
->(
-    runtime: Runtime.Runtime<RuntimeR>,
-    ReactContext: React.Context<Value<RuntimeR, ContextR>>,
-    parent: Reffuse.Reffuse<RuntimeR, ParentContextR, unknown, unknown>,
-): Provider<RuntimeR, OwnContextR, ParentContextR> {
-    return function ReffuseNestedReactContextProvider(props) {
-        const parentContext = parent.useContext()
-
-        const value = React.useMemo(() => ({
-            runtime,
-            context: Effect.context<ContextR>().pipe(
-                Effect.provide(props.layer),
-                Effect.provide(parentContext),
-                Runtime.runSync(runtime),
-            ),
-        }), [props.layer, parentContext])
-
-        return (
-            <ReactContext
-                {...props}
-                value={value}
-            />
-        )
-    }
-}