diff --git a/.gitignore b/.gitignore
index eea5380..1718219 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,3 +47,4 @@ test-results/
 .superpowers/
 .kilo/
 kilo.json
+.local-sdk/
diff --git a/app/api/register/[name]/fees/[coin]/route.ts b/app/api/register/[name]/fees/[coin]/route.ts
index a6d9aba..45388b8 100644
--- a/app/api/register/[name]/fees/[coin]/route.ts
+++ b/app/api/register/[name]/fees/[coin]/route.ts
@@ -1,5 +1,5 @@
 import { NextRequest, NextResponse } from "next/server";
-import type { BYOCSymbol } from "@metanames/sdk/dist/providers/config";
+import type { BYOCSymbol } from "@metanames/sdk/providers/config";
 import { getServerSdk } from "@/lib/sdk";
 import { handleError, jsonError } from "@/lib/server-error";
 import { validateDomainName, normalizeDomain } from "@/lib/domain-validator";
diff --git a/app/tld/page.tsx b/app/tld/page.tsx
index 3f3d3ce..b1ffa6c 100644
--- a/app/tld/page.tsx
+++ b/app/tld/page.tsx
@@ -3,7 +3,7 @@ import { getServerSdk } from "@/lib/sdk";
 import { TldPageClient } from "./TldPageClient";
 import Loading from "./loading";
 import type { Domain } from "@/lib/types";
-import type { Domain as SdkDomain } from "@metanames/sdk/dist/models/domain";
+import type { Domain as SdkDomain } from "@metanames/sdk/models/domain";
 
 export const metadata = {
   title: "TLD Information",
diff --git a/components/domain-payment.tsx b/components/domain-payment.tsx
index ab063fd..5bfeed4 100644
--- a/components/domain-payment.tsx
+++ b/components/domain-payment.tsx
@@ -14,7 +14,7 @@ import { RequireWalletConnection } from "@/components/require-wallet-connection"
 import { useDomainPayment } from "@/lib/hooks/use-domain-payment";
 import { Minus, Plus, Loader2, Check } from "lucide-react";
 import { cn } from "@/lib/utils";
-import type { BYOCSymbol as SdkBYOCSymbol } from "@metanames/sdk/dist/providers/config";
+import type { BYOCSymbol as SdkBYOCSymbol } from "@metanames/sdk/providers/config";
 
 interface DomainPaymentProps {
   domain: string;
diff --git a/components/subdomain-registration.tsx b/components/subdomain-registration.tsx
index 2efa5c6..800c2e8 100644
--- a/components/subdomain-registration.tsx
+++ b/components/subdomain-registration.tsx
@@ -7,7 +7,7 @@ import { useWalletStore } from "@/lib/stores/wallet-store";
 import { useSdkStore } from "@/lib/stores/sdk-store";
 import { explorerTransactionUrl } from "@/lib/url";
 import { toast } from "sonner";
-import type { BYOCSymbol as SdkBYOCSymbol } from "@metanames/sdk/dist/providers/config";
+import type { BYOCSymbol as SdkBYOCSymbol } from "@metanames/sdk/providers/config";
 
 interface SubdomainRegistrationProps {
   domain: string;
diff --git a/lib/__tests__/wallet-connect.test.ts b/lib/__tests__/wallet-connect.test.ts
index 22050ac..b33b3c6 100644
--- a/lib/__tests__/wallet-connect.test.ts
+++ b/lib/__tests__/wallet-connect.test.ts
@@ -19,7 +19,7 @@ vi.mock("@ledgerhq/hw-transport-webusb", () => ({
 }));
 
 const ledgerGetAddress = vi.fn();
-vi.mock("@metanames/sdk/dist/transactions/ledger", () => ({
+vi.mock("@metanames/sdk/transactions/ledger", () => ({
   PartisiaLedgerClient: class {
     constructor(public transport: unknown) {}
     getAddress = ledgerGetAddress;
@@ -56,17 +56,20 @@ function mockSdk() {
   };
 }
 
-/** Install (or remove) the MetaMask-shaped globals the connector reads. */
+/** Install (or remove) the injected provider the connector reads. */
 function setEthereum(
-  value: { isMetaMask?: boolean; request?: unknown } | null,
+  value: {
+    isMetaMask?: boolean;
+    request?: unknown;
+    providers?: unknown[];
+  } | null,
 ) {
   const w = window as unknown as Record<string, unknown>;
   if (value === null) {
-    delete w.isMetaMask;
-    delete w.request;
+    delete w.ethereum;
     return;
   }
-  Object.assign(w, value);
+  w.ethereum = value;
 }
 
 describe("connectMetaMask", () => {
@@ -99,6 +102,53 @@ describe("connectMetaMask", () => {
     expect(sdk.setSigningStrategy).not.toHaveBeenCalled();
   });
 
+  // Extensions inject on `window.ethereum`, never on `window` itself: a
+  // connector reading the flag off the window finds nothing in a real browser.
+  it("refuses when the flag is on the window instead of the provider", async () => {
+    setEthereum(null);
+    const w = window as unknown as Record<string, unknown>;
+    w.isMetaMask = true;
+    w.request = vi.fn();
+    const sdk = mockSdk();
+
+    await expect(connectMetaMask(sdk)).rejects.toThrow("MetaMask not found");
+
+    delete w.isMetaMask;
+    delete w.request;
+  });
+
+  // Several wallets installed at once: the last one to load owns
+  // `window.ethereum` and lists the others under `providers`.
+  it("finds MetaMask among several injected providers", async () => {
+    const request = vi
+      .fn()
+      .mockResolvedValueOnce(undefined)
+      .mockResolvedValueOnce("mm-address");
+    setEthereum({
+      isMetaMask: false,
+      request: vi.fn(),
+      providers: [
+        { isMetaMask: false, request: vi.fn() },
+        { isMetaMask: true, request },
+      ],
+    });
+    const sdk = mockSdk();
+
+    await expect(connectMetaMask(sdk)).resolves.toBe("mm-address");
+  });
+
+  // The snap answers with the address itself; older builds wrapped it.
+  it("accepts the address as a bare string", async () => {
+    const request = vi
+      .fn()
+      .mockResolvedValueOnce(undefined)
+      .mockResolvedValueOnce("bare-address");
+    setEthereum({ isMetaMask: true, request });
+    const sdk = mockSdk();
+
+    await expect(connectMetaMask(sdk)).resolves.toBe("bare-address");
+  });
+
   // A snap that resolves without an address must not leave the app "connected"
   // to an account it cannot name.
   it("refuses when the snap returns no address", async () => {
diff --git a/lib/hooks/use-domain-payment.ts b/lib/hooks/use-domain-payment.ts
index 08a6274..354a4b3 100644
--- a/lib/hooks/use-domain-payment.ts
+++ b/lib/hooks/use-domain-payment.ts
@@ -15,7 +15,7 @@ import {
 } from "@/lib/error";
 import { bridgeUrl, explorerTransactionUrl } from "@/lib/url";
 import type { FeesResponse } from "@/lib/types";
-import type { BYOCSymbol } from "@metanames/sdk/dist/providers/config";
+import type { BYOCSymbol } from "@metanames/sdk/providers/config";
 import { toast } from "sonner";
 import { track } from "@vercel/analytics";
 
diff --git a/lib/stores/sdk-store.ts b/lib/stores/sdk-store.ts
index 2a9c322..bc6e0c4 100644
--- a/lib/stores/sdk-store.ts
+++ b/lib/stores/sdk-store.ts
@@ -1,6 +1,6 @@
 import { create } from "zustand";
 import type { MetaNamesSdk } from "@metanames/sdk";
-import type { BYOCSymbol } from "@metanames/sdk/dist/providers/config";
+import type { BYOCSymbol } from "@metanames/sdk/providers/config";
 
 interface SdkStore {
   metaNamesSdk: MetaNamesSdk | null;
diff --git a/lib/types.ts b/lib/types.ts
index d86f4b6..9f474da 100644
--- a/lib/types.ts
+++ b/lib/types.ts
@@ -26,7 +26,7 @@ export interface AlertMessage {
   message: string;
   action?: { label: string; onClick: () => void };
 }
-import type { BYOCSymbol as SdkBYOCSymbol } from "@metanames/sdk/dist/providers/config";
+import type { BYOCSymbol as SdkBYOCSymbol } from "@metanames/sdk/providers/config";
 
 export type BYOCSymbol = SdkBYOCSymbol;
 // Testnet coins - for mainnet coins use sdk.config.byoc at runtime
diff --git a/lib/wallet.ts b/lib/wallet.ts
index fa25659..9ef0373 100644
--- a/lib/wallet.ts
+++ b/lib/wallet.ts
@@ -1,29 +1,51 @@
 import type { MetaNamesSdk } from "@metanames/sdk";
-import type { MetaMaskSdk } from "@metanames/sdk/dist/interface";
+import type { MetaMaskSdk } from "@metanames/sdk/interface";
 import type { PermissionTypes } from "partisia-blockchain-applications-sdk/lib/sdk-listeners";
 import { config } from "./config";
 
 interface EthereumProvider extends MetaMaskSdk {
   isMetaMask?: boolean;
+  /** Set when several wallet extensions are installed side by side. */
+  providers?: EthereumProvider[];
+}
+
+/**
+ * The MetaMask provider, or nothing when it is not installed.
+ *
+ * Extensions inject themselves on `window.ethereum`, not on `window`. When more
+ * than one is installed they share that slot: whichever loaded last owns it and
+ * the rest are listed under `providers`, so the flag has to be checked on each
+ * entry rather than on the slot itself.
+ */
+function metaMaskProvider(): EthereumProvider | undefined {
+  const injected = (window as { ethereum?: EthereumProvider }).ethereum;
+  if (!injected) return undefined;
+  if (injected.providers?.length)
+    return injected.providers.find((provider) => provider.isMetaMask);
+
+  return injected.isMetaMask ? injected : undefined;
 }
 
 export async function connectMetaMask(sdk: MetaNamesSdk): Promise<string> {
-  const eth = window as unknown as EthereumProvider;
-  if (!eth?.isMetaMask) throw new Error("MetaMask not found");
+  const eth = metaMaskProvider();
+  if (!eth) throw new Error("MetaMask not found");
   await eth.request({
     method: "wallet_requestSnaps",
     params: { "npm:@partisiablockchain/snap": {} },
   });
+  // The snap answers `get_address` with the address itself. Older builds
+  // wrapped it in an object, so both shapes are read.
   const res = (await eth.request({
     method: "wallet_invokeSnap",
     params: {
       snapId: "npm:@partisiablockchain/snap",
       request: { method: "get_address" },
     },
-  })) as { address?: string };
-  if (!res?.address) throw new Error("No address from MetaMask");
+  })) as string | { address?: string } | undefined;
+  const address = typeof res === "string" ? res : res?.address;
+  if (!address) throw new Error("No address from MetaMask");
   sdk.setSigningStrategy("MetaMask", eth);
-  return res.address;
+  return address;
 }
 export async function connectPartisiaWallet(
   sdk: MetaNamesSdk,
@@ -45,7 +67,7 @@ export async function connectLedger(sdk: MetaNamesSdk): Promise<string> {
   const { default: TransportWebUSB } =
     await import("@ledgerhq/hw-transport-webusb");
   const { PartisiaLedgerClient } =
-    await import("@metanames/sdk/dist/transactions/ledger");
+    await import("@metanames/sdk/transactions/ledger");
   const transport = await TransportWebUSB.create();
   const client = new PartisiaLedgerClient(transport);
   const address = await client.getAddress();
diff --git a/package-lock.json b/package-lock.json
index 3cb489d..c81c59b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "dependencies": {
         "@base-ui/react": "^1.3.0",
         "@ledgerhq/hw-transport-webusb": "^6.33.0",
-        "@metanames/sdk": "^6.3.1",
+        "@metanames/sdk": "^7.0.0",
         "@sentry/nextjs": "^10.47.0",
         "@tanstack/react-table": "^8.21.3",
         "@vercel/analytics": "^2.0.1",
@@ -2182,20 +2182,33 @@
       "license": "Apache-2.0"
     },
     "node_modules/@metanames/sdk": {
-      "version": "6.3.1",
-      "resolved": "https://registry.npmjs.org/@metanames/sdk/-/sdk-6.3.1.tgz",
-      "integrity": "sha512-jIDXeeTvgQHwm3Sx3NLgA+8l8IdLHhD4M9DuD1M2ozqVXj7q6veB0DWLiVWy/UO+NtRXwgpHhoJ78fRJHzHBJg==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@metanames/sdk/-/sdk-7.0.0.tgz",
+      "integrity": "sha512-ydl9cxSW1oU14tJUtz0p+zi9NVeGBNPagw862+TIaoc7bvYVeENIC5iizyNjA9BpLPviSoQplKn7i9TN5hMykA==",
       "license": "MIT",
       "dependencies": {
         "@ledgerhq/hw-transport": "^6.34.0",
         "@partisiablockchain/abi-client": "^6.0.0",
+        "@partisiablockchain/blockchain-api-transaction-client": "^6.142.0",
         "@secata-public/bitmanipulation-ts": "^3.4.0",
         "bip32-path": "^0.4.2",
-        "node-fetch": "2",
-        "partisia-blockchain-applications-crypto": "^1.0.34",
-        "partisia-blockchain-applications-rpc": "^1.0.13",
-        "partisia-blockchain-applications-sdk": "^0.1.4",
-        "tr46": "^4.1.1"
+        "partisia-blockchain-applications-sdk": "^0.1.4"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/@metanames/sdk/node_modules/@partisiablockchain/blockchain-api-transaction-client": {
+      "version": "6.142.0",
+      "resolved": "https://registry.npmjs.org/@partisiablockchain/blockchain-api-transaction-client/-/blockchain-api-transaction-client-6.142.0.tgz",
+      "integrity": "sha512-3VOVBlinzZq815aTfNmO9DnN3gkIVo6N70JN61zPCgT1GQz8leror1Z4jAq7q8bAQOvZgZQlRMLDudFxm57Arw==",
+      "license": "AGPL-3.0",
+      "dependencies": {
+        "@secata-public/bitmanipulation-ts": "^3.1.0",
+        "@types/elliptic": "^6.4.15",
+        "bn.js": "^5.2.1",
+        "elliptic": "^6.5.5",
+        "hash.js": "^1.1.7"
       }
     },
     "node_modules/@modelcontextprotocol/sdk": {
@@ -6677,12 +6690,6 @@
         "node": ">= 0.4"
       }
     },
-    "node_modules/asynckit": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
-      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
-      "license": "MIT"
-    },
     "node_modules/available-typed-arrays": {
       "version": "1.0.7",
       "resolved": "https://registry.npmjs.org/available-typed-arrays/-/available-typed-arrays-1.0.7.tgz",
@@ -6708,26 +6715,6 @@
         "node": ">=4"
       }
     },
-    "node_modules/axios": {
-      "version": "1.14.0",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-1.14.0.tgz",
-      "integrity": "sha512-3Y8yrqLSwjuzpXuZ0oIYZ/XGgLwUIBU3uLvbcpb0pidD9ctpShJd43KSlEEkVQg6DS0G9NKyzOvBfUtDKEyHvQ==",
-      "license": "MIT",
-      "dependencies": {
-        "follow-redirects": "^1.15.11",
-        "form-data": "^4.0.5",
-        "proxy-from-env": "^2.1.0"
-      }
-    },
-    "node_modules/axios/node_modules/proxy-from-env": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-2.1.0.tgz",
-      "integrity": "sha512-cJ+oHTW1VAEa8cJslgmUZrc+sjRKgAKl3Zyse6+PV38hZe/V6Z14TbCuXcan9F9ghlz4QrFr2c92TNF82UkYHA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=10"
-      }
-    },
     "node_modules/axobject-query": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/axobject-query/-/axobject-query-4.1.0.tgz",
@@ -7362,18 +7349,6 @@
       "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
       "license": "MIT"
     },
-    "node_modules/combined-stream": {
-      "version": "1.0.8",
-      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
-      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
-      "license": "MIT",
-      "dependencies": {
-        "delayed-stream": "~1.0.0"
-      },
-      "engines": {
-        "node": ">= 0.8"
-      }
-    },
     "node_modules/commander": {
       "version": "14.0.3",
       "resolved": "https://registry.npmjs.org/commander/-/commander-14.0.3.tgz",
@@ -7791,15 +7766,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/delayed-stream": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
-      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.4.0"
-      }
-    },
     "node_modules/depd": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
@@ -8132,6 +8098,7 @@
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/es-set-tostringtag/-/es-set-tostringtag-2.1.0.tgz",
       "integrity": "sha512-j6vWzfrGVfyXxge+O0x5sh6cvxAog0a/4Rdd2K36zCMV5eJ+/+tOAngRO8cODMNWbVRdVlmGZQL2YS3yR8bIUA==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "es-errors": "^1.3.0",
@@ -9242,26 +9209,6 @@
       "dev": true,
       "license": "ISC"
     },
-    "node_modules/follow-redirects": {
-      "version": "1.15.11",
-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.11.tgz",
-      "integrity": "sha512-deG2P0JfjrTxl50XGCDyfI97ZGVCxIpfKYmfyrQ54n5FO/0gfIES8C/Psl6kWVDolizcaaxZJnTS0QSMxvnsBQ==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://github.com/sponsors/RubenVerborgh"
-        }
-      ],
-      "license": "MIT",
-      "engines": {
-        "node": ">=4.0"
-      },
-      "peerDependenciesMeta": {
-        "debug": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/for-each": {
       "version": "0.3.5",
       "resolved": "https://registry.npmjs.org/for-each/-/for-each-0.3.5.tgz",
@@ -9277,22 +9224,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/form-data": {
-      "version": "4.0.5",
-      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.5.tgz",
-      "integrity": "sha512-8RipRLol37bNs2bhoV67fiTEvdTrbMUYcFTiy3+wuuOnUog2QBHCZWXDRijWQfAkhBj2Uf5UnVaiWwA5vdd82w==",
-      "license": "MIT",
-      "dependencies": {
-        "asynckit": "^0.4.0",
-        "combined-stream": "^1.0.8",
-        "es-set-tostringtag": "^2.1.0",
-        "hasown": "^2.0.2",
-        "mime-types": "^2.1.12"
-      },
-      "engines": {
-        "node": ">= 6"
-      }
-    },
     "node_modules/formdata-polyfill": {
       "version": "4.0.10",
       "resolved": "https://registry.npmjs.org/formdata-polyfill/-/formdata-polyfill-4.0.10.tgz",
@@ -11671,6 +11602,7 @@
       "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
       "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">= 0.6"
       }
@@ -11680,6 +11612,7 @@
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
       "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "mime-db": "1.52.0"
       },
@@ -12517,15 +12450,6 @@
         "node": ">=16.20.0"
       }
     },
-    "node_modules/partisia-blockchain-applications-rpc": {
-      "version": "1.0.13",
-      "resolved": "https://registry.npmjs.org/partisia-blockchain-applications-rpc/-/partisia-blockchain-applications-rpc-1.0.13.tgz",
-      "integrity": "sha512-4W1RLkIzruhBMql4Ls7W2n2oIEiGhpbVy3g78QOw/Eb8BX6xIBHUmkf4q2ldBcTN7bs5UQROvhKyksfPKGbXng==",
-      "license": "ISC",
-      "dependencies": {
-        "axios": "^1.6.2"
-      }
-    },
     "node_modules/partisia-blockchain-applications-sdk": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/partisia-blockchain-applications-sdk/-/partisia-blockchain-applications-sdk-0.1.4.tgz",
diff --git a/package.json b/package.json
index 8f8c5a7..ffc83eb 100644
--- a/package.json
+++ b/package.json
@@ -10,12 +10,13 @@
     "format": "prettier --write . && eslint --fix .",
     "test": "vitest",
     "test:run": "vitest run",
-    "test:e2e": "playwright test"
+    "test:e2e": "playwright test",
+    "sdk:local": "bash scripts/use-local-sdk.sh"
   },
   "dependencies": {
     "@base-ui/react": "^1.3.0",
     "@ledgerhq/hw-transport-webusb": "^6.33.0",
-    "@metanames/sdk": "^6.3.1",
+    "@metanames/sdk": "^7.0.0",
     "@sentry/nextjs": "^10.47.0",
     "@tanstack/react-table": "^8.21.3",
     "@vercel/analytics": "^2.0.1",
diff --git a/scripts/use-local-sdk.sh b/scripts/use-local-sdk.sh
new file mode 100755
index 0000000..3a49c17
--- /dev/null
+++ b/scripts/use-local-sdk.sh
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+# Install the sibling SDK checkout into this app as a tarball.
+#
+# A tarball, not `file:../sdk` or `npm link`: those symlink the whole working
+# tree, so the app resolves files the published package never contains and
+# `next build` follows the SDK's own node_modules. `npm pack` produces exactly
+# what `npm publish` would, which is the thing worth testing before a release.
+#
+# Usage: npm run sdk:local [path-to-sdk]   (default: ../sdk)
+set -euo pipefail
+
+sdk_dir=$(cd "${1:-../sdk}" && pwd)
+app_dir=$(cd "$(dirname "$0")/.." && pwd)
+out_dir="$app_dir/.local-sdk"
+
+mkdir -p "$out_dir"
+rm -f "$out_dir"/*.tgz
+
+echo "building $sdk_dir"
+(cd "$sdk_dir" && yarn build >/dev/null)
+
+# The tarball name carries a timestamp: npm caches by name+version, so reusing
+# one name silently keeps the previous contents installed.
+tarball=$(cd "$sdk_dir" && npm pack --pack-destination "$out_dir" --silent | tail -1)
+stamped="metanames-sdk-local-$(date +%s).tgz"
+mv "$out_dir/$tarball" "$out_dir/$stamped"
+
+echo "installing $stamped"
+npm install --no-audit --no-fund "file:$out_dir/$stamped"
+
+node -e "const p=require('@metanames/sdk/package.json');console.log('installed @metanames/sdk',p.version)"
+echo "restore the published SDK with: npm install @metanames/sdk@latest"