diff --git a/packages/tre/src/plugins/kv/index.ts b/packages/tre/src/plugins/kv/index.ts
index a8f368ca4..b36c9cc64 100644
--- a/packages/tre/src/plugins/kv/index.ts
+++ b/packages/tre/src/plugins/kv/index.ts
@@ -9,6 +9,7 @@ import {
   Plugin,
   SCRIPT_PLUGIN_NAMESPACE_PERSIST,
   encodePersist,
+  namespaceEntries,
 } from "../shared";
 import { KV_PLUGIN_NAME } from "./constants";
 import { KVGateway } from "./gateway";
@@ -17,8 +18,7 @@ import { KVRouter } from "./router";
 import { SitesOptions, getSitesBindings, getSitesService } from "./sites";
 
 export const KVOptionsSchema = z.object({
-  // TODO: also allow array like Miniflare 2
-  kvNamespaces: z.record(z.string()).optional(),
+  kvNamespaces: z.union([z.record(z.string()), z.string().array()]).optional(),
 
   // Workers Sites
   sitePath: z.string().optional(),
@@ -48,9 +48,8 @@ export const KV_PLUGIN: Plugin<
   options: KVOptionsSchema,
   sharedOptions: KVSharedOptionsSchema,
   async getBindings(options) {
-    const bindings = Object.entries(
-      options.kvNamespaces ?? {}
-    ).map<Worker_Binding>(([name, id]) => ({
+    const namespaces = namespaceEntries(options.kvNamespaces);
+    const bindings = namespaces.map<Worker_Binding>(([name, id]) => ({
       name,
       kvNamespace: { name: `${SERVICE_NAMESPACE_PREFIX}:${id}` },
     }));
@@ -63,24 +62,23 @@ export const KV_PLUGIN: Plugin<
   },
   getServices({ options, sharedOptions }) {
     const persistBinding = encodePersist(sharedOptions.kvPersist);
-    const services = Object.entries(options.kvNamespaces ?? []).map<Service>(
-      ([_, id]) => ({
-        name: `${SERVICE_NAMESPACE_PREFIX}:${id}`,
-        worker: {
-          serviceWorkerScript: SCRIPT_PLUGIN_NAMESPACE_PERSIST,
-          compatibilityDate: "2022-09-01",
-          bindings: [
-            ...persistBinding,
-            { name: BINDING_TEXT_PLUGIN, text: KV_PLUGIN_NAME },
-            { name: BINDING_TEXT_NAMESPACE, text: id },
-            {
-              name: BINDING_SERVICE_LOOPBACK,
-              service: { name: SERVICE_LOOPBACK },
-            },
-          ],
-        },
-      })
-    );
+    const namespaces = namespaceEntries(options.kvNamespaces);
+    const services = namespaces.map<Service>(([_, id]) => ({
+      name: `${SERVICE_NAMESPACE_PREFIX}:${id}`,
+      worker: {
+        serviceWorkerScript: SCRIPT_PLUGIN_NAMESPACE_PERSIST,
+        compatibilityDate: "2022-09-01",
+        bindings: [
+          ...persistBinding,
+          { name: BINDING_TEXT_PLUGIN, text: KV_PLUGIN_NAME },
+          { name: BINDING_TEXT_NAMESPACE, text: id },
+          {
+            name: BINDING_SERVICE_LOOPBACK,
+            service: { name: SERVICE_LOOPBACK },
+          },
+        ],
+      },
+    }));
 
     if (isWorkersSitesEnabled(options)) {
       services.push(getSitesService(options));
diff --git a/packages/tre/src/plugins/r2/index.ts b/packages/tre/src/plugins/r2/index.ts
index 2b3fe17d1..f2ded7243 100644
--- a/packages/tre/src/plugins/r2/index.ts
+++ b/packages/tre/src/plugins/r2/index.ts
@@ -9,12 +9,13 @@ import {
   Plugin,
   SCRIPT_PLUGIN_NAMESPACE_PERSIST,
   encodePersist,
+  namespaceEntries,
 } from "../shared";
 import { R2Gateway } from "./gateway";
 import { R2Router } from "./router";
 
 export const R2OptionsSchema = z.object({
-  r2Buckets: z.record(z.string()).optional(),
+  r2Buckets: z.union([z.record(z.string()), z.string().array()]).optional(),
 });
 export const R2SharedOptionsSchema = z.object({
   r2Persist: PersistenceSchema,
@@ -31,14 +32,11 @@ export const R2_PLUGIN: Plugin<
   options: R2OptionsSchema,
   sharedOptions: R2SharedOptionsSchema,
   getBindings(options) {
-    const bindings = Object.entries(
-      options.r2Buckets ?? []
-    ).map<Worker_Binding>(([name, id]) => ({
+    const buckets = namespaceEntries(options.r2Buckets);
+    return buckets.map<Worker_Binding>(([name, id]) => ({
       name,
       r2Bucket: { name: `${R2_PLUGIN_NAME}:${id}` },
     }));
-
-    return bindings;
   },
   getServices({ options, sharedOptions }) {
     const persistBinding = encodePersist(sharedOptions.r2Persist);
@@ -46,23 +44,20 @@ export const R2_PLUGIN: Plugin<
       name: BINDING_SERVICE_LOOPBACK,
       service: { name: SERVICE_LOOPBACK },
     };
-    const services = Object.entries(options.r2Buckets ?? []).map<Service>(
-      ([_, id]) => ({
-        name: `${R2_PLUGIN_NAME}:${id}`,
-        worker: {
-          serviceWorkerScript: SCRIPT_PLUGIN_NAMESPACE_PERSIST,
-          bindings: [
-            ...persistBinding,
-            { name: BINDING_TEXT_PLUGIN, text: R2_PLUGIN_NAME },
-            { name: BINDING_TEXT_NAMESPACE, text: id },
-            loopbackBinding,
-          ],
-          compatibilityDate: "2022-09-01",
-        },
-      })
-    );
-
-    return services;
+    const buckets = namespaceEntries(options.r2Buckets);
+    return buckets.map<Service>(([_, id]) => ({
+      name: `${R2_PLUGIN_NAME}:${id}`,
+      worker: {
+        serviceWorkerScript: SCRIPT_PLUGIN_NAMESPACE_PERSIST,
+        bindings: [
+          ...persistBinding,
+          { name: BINDING_TEXT_PLUGIN, text: R2_PLUGIN_NAME },
+          { name: BINDING_TEXT_NAMESPACE, text: id },
+          loopbackBinding,
+        ],
+        compatibilityDate: "2022-09-01",
+      },
+    }));
   },
 };
 
diff --git a/packages/tre/src/plugins/shared/index.ts b/packages/tre/src/plugins/shared/index.ts
index 105242959..f6272bbd9 100644
--- a/packages/tre/src/plugins/shared/index.ts
+++ b/packages/tre/src/plugins/shared/index.ts
@@ -47,6 +47,18 @@ export type Plugin<
         remoteStorage?: RemoteStorageConstructor;
       });
 
+export function namespaceEntries(
+  namespaces?: Record<string, string> | string[]
+): [bindingName: string, id: string][] {
+  if (Array.isArray(namespaces)) {
+    return namespaces.map(([bindingName]) => [bindingName, bindingName]);
+  } else if (namespaces !== undefined) {
+    return Object.entries(namespaces);
+  } else {
+    return [];
+  }
+}
+
 export * from "./constants";
 export * from "./gateway";
 export * from "./router";