diff --git a/.circleci/config.yml b/.circleci/config.yml
index f6d2ae80..d265af2c 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -11,6 +11,9 @@ jobs:
       - checkout
       - restore_cache:
           key: dependency-cache-{{ checksum "yarn.lock" }}
+      - run:
+          name: install-apt
+          command: sudo apt-get install libusb-1.0.0
       - run:
           name: install-deps
           command: yarn install --frozen-lockfile
diff --git a/packages/ui-keyring/package.json b/packages/ui-keyring/package.json
index 8ff2e2d0..f27097ac 100644
--- a/packages/ui-keyring/package.json
+++ b/packages/ui-keyring/package.json
@@ -9,10 +9,18 @@
   ],
   "contributors": [],
   "license": "Apache-2.0",
+  "browser": {
+    "@ledgerhq/hw-transport-node-hid": "@ledgerhq/hw-transport-u2f"
+  },
+  "react-native": {
+    "@ledgerhq/hw-transport-node-hid": "@ledgerhq/hw-transport-u2f"
+  },
   "dependencies": {
     "@babel/runtime": "^7.6.0",
+    "@ledgerhq/hw-transport-node-hid": "^4.70.0",
     "@ledgerhq/hw-transport-u2f": "^4.70.0",
     "@ledgerhq/hw-transport-webusb": "^4.70.0",
+    "@types/ledgerhq__hw-transport-node-hid": "^4.21.1",
     "@types/ledgerhq__hw-transport-u2f": "^4.21.1",
     "@types/mkdirp": "^0.5.2",
     "@types/store": "^2.0.2",
@@ -24,7 +32,7 @@
   },
   "devDependencies": {
     "@polkadot/keyring": "^1.4.1",
-    "@polkadot/types": "^0.93.0-beta.3",
+    "@polkadot/types": "^0.93.0-beta.4",
     "@polkadot/util": "^1.4.1"
   },
   "peerDependencies": {
diff --git a/packages/ui-keyring/src/Keyring.ts b/packages/ui-keyring/src/Keyring.ts
index 2bc444a0..8a76c4ba 100644
--- a/packages/ui-keyring/src/Keyring.ts
+++ b/packages/ui-keyring/src/Keyring.ts
@@ -36,6 +36,10 @@ export class Keyring extends Base implements KeyringStruct {
     };
   }
 
+  public addHardware (address: string | Uint8Array, hardwareType: string, meta: KeyringPair$Meta = {}): CreateResult {
+    return this.addExternal(address, { ...meta, hardwareType, isHardware: true });
+  }
+
   public addPair (pair: KeyringPair, password: string): CreateResult {
     this.keyring.addPair(pair);
 
diff --git a/packages/ui-keyring/src/index.ts b/packages/ui-keyring/src/index.ts
index 5b843190..71df8c29 100644
--- a/packages/ui-keyring/src/index.ts
+++ b/packages/ui-keyring/src/index.ts
@@ -5,7 +5,7 @@
 import { assertSingletonPackage } from '@polkadot/util';
 
 import keyring, { Keyring } from './Keyring';
-import { openLedger } from './ledger';
+import Ledger from './ledger';
 
 assertSingletonPackage('@polkadot/ui-keyring');
 
@@ -13,5 +13,5 @@ export default keyring;
 
 export {
   Keyring,
-  openLedger
+  Ledger
 };
diff --git a/packages/ui-keyring/src/ledger-polkadot.d.ts b/packages/ui-keyring/src/ledger-polkadot.d.ts
index 02972296..8722cd38 100644
--- a/packages/ui-keyring/src/ledger-polkadot.d.ts
+++ b/packages/ui-keyring/src/ledger-polkadot.d.ts
@@ -29,7 +29,7 @@ declare module 'ledger-polkadot' {
     getVersion (): Promise<ResponseVersion>;
     getAddress (account: number, change: number, addressIndex: number, requireConfirmation?: boolean): Promise<ResponseAddress>;
     signSendChunk (chunkIdx: number, chunkNum: number, chunk: Buffer): Promise<ResponseSign>;
-    sign (account: number, change: number, addressIndex: number, message: Uint8Array): Promise<ResponseSign>;
+    sign (account: number, change: number, addressIndex: number, message: Buffer): Promise<ResponseSign>;
   }
 
   export default LedgerApp;
diff --git a/packages/ui-keyring/src/ledger.ts b/packages/ui-keyring/src/ledger.ts
index 6bc26e70..6d93b7b4 100644
--- a/packages/ui-keyring/src/ledger.ts
+++ b/packages/ui-keyring/src/ledger.ts
@@ -1,22 +1,130 @@
+/* eslint-disable @typescript-eslint/camelcase */
 // Copyright 2017-2019 @polkadot/ui-keyring authors & contributors
 // This software may be modified and distributed under the terms
 // of the Apache-2.0 license. See the LICENSE file for details.
 
 import Transport from '@ledgerhq/hw-transport';
+import LedgerHid from '@ledgerhq/hw-transport-node-hid';
 import LedgerU2F from '@ledgerhq/hw-transport-u2f';
 import LedgerWebUSB from '@ledgerhq/hw-transport-webusb';
-import LedgerApp from 'ledger-polkadot';
+import LedgerApp, { ResponseBase } from 'ledger-polkadot';
+import { assert, u8aToBuffer } from '@polkadot/util';
 
-export async function openLedger (type: 'u2f' | 'webusb'): Promise<LedgerApp> {
-  let transport: Transport;
+export type LedgerTypes = 'hid' | 'u2f' | 'webusb';
 
-  if (type === 'u2f') {
-    transport = await LedgerU2F.create(7500);
-  } else if (type === 'webusb') {
-    transport = await LedgerWebUSB.create();
-  } else {
-    throw new Error(`Unsupported transport ${type}`);
+export interface LedgerAddress {
+  address: string;
+  publicKey: string;
+}
+
+export interface LedgerSignature {
+  signature: string;
+}
+
+export interface LedgerVersion {
+  isLocked: boolean;
+  isTestMode: boolean;
+  major: number;
+  minor: number;
+  patch: number;
+}
+
+export const LEDGER_DEFAULT_ACCOUNT = 0x80000000;
+
+export const LEDGER_DEFAULT_CHANGE = 0x80000000;
+
+export const LEDGER_DEFAULT_INDEX = 0x80000000;
+
+const SUCCESS_CODE = 0x9000;
+
+// A very basic wrapper for a ledger app -
+//  - it connects automatically, creating an app as required
+//  - Promises return errors (instead of wrapper errors)
+export default class Ledger {
+  private app: LedgerApp | null = null;
+  private type: LedgerTypes;
+
+  public constructor (type: LedgerTypes) {
+    assert(['hid', 'u2f', 'webusb'].includes(type), `Unsupported transport ${type}`);
+
+    this.type = type;
   }
 
-  return new LedgerApp(transport);
+  private async getApp (): Promise<LedgerApp> {
+    if (!this.app) {
+      let transport: Transport;
+
+      if (this.type === 'hid') {
+        transport = await LedgerHid.create();
+      } else if (this.type === 'u2f') {
+        transport = await LedgerU2F.create();
+      } else if (this.type === 'webusb') {
+        transport = await LedgerWebUSB.create();
+      } else {
+        throw new Error(`Unable to create app for ${this.type}`);
+      }
+
+      this.app = new LedgerApp(transport);
+    }
+
+    return this.app;
+  }
+
+  private async wrapResult <T> (fn: (app: LedgerApp) => Promise<T>): Promise<T> {
+    try {
+      const app = await this.getApp();
+
+      return await fn(app);
+    } catch (error) {
+      this.app = null;
+
+      throw error;
+    }
+  }
+
+  private async wrapError <T extends ResponseBase> (promise: Promise<T>): Promise<T> {
+    const result = await promise;
+
+    if (result.return_code !== SUCCESS_CODE) {
+      throw new Error(result.error_message);
+    }
+
+    return result;
+  }
+
+  public async getAddress (confirm = false, account = LEDGER_DEFAULT_ACCOUNT, change = LEDGER_DEFAULT_CHANGE, addressIndex = LEDGER_DEFAULT_INDEX): Promise<LedgerAddress> {
+    return this.wrapResult(async (app: LedgerApp): Promise<LedgerAddress> => {
+      const { address, pubKey } = await this.wrapError(app.getAddress(account, change, addressIndex, confirm));
+
+      return {
+        address,
+        publicKey: `0x${pubKey}`
+      };
+    });
+  }
+
+  public async getVersion (): Promise<LedgerVersion> {
+    return this.wrapResult(async (app: LedgerApp): Promise<LedgerVersion> => {
+      const { device_locked, major, minor, patch, test_mode } = await this.wrapError(app.getVersion());
+
+      return {
+        isLocked: device_locked,
+        isTestMode: test_mode,
+        major,
+        minor,
+        patch
+      };
+    });
+  }
+
+  public async sign (message: Uint8Array, account = LEDGER_DEFAULT_ACCOUNT, change = LEDGER_DEFAULT_CHANGE, addressIndex = LEDGER_DEFAULT_INDEX): Promise<LedgerSignature> {
+    return this.wrapResult(async (app: LedgerApp): Promise<LedgerSignature> => {
+      const buffer = u8aToBuffer(message);
+      const { signature } = await this.wrapError(app.sign(account, change, addressIndex, buffer));
+
+      return {
+        signature: `0x${signature}`
+      };
+    });
+  }
 }
diff --git a/yarn.lock b/yarn.lock
index 35530ad8..6a718bea 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1252,6 +1252,31 @@
   resolved "https://registry.yarnpkg.com/@ledgerhq/errors/-/errors-4.70.0.tgz#3ec196ed8f1211ed2f4e84969c26e9e97a3a4bc0"
   integrity sha512-XFFuVGJ34dhkIfqTUGudPvnSx3cRGuZ+oVr8lR4UFuc29TwDVjf1X4GJ5wQU4XUqS4rNe+I+Tq7BK7V1DFX9lQ==
 
+"@ledgerhq/hw-transport-node-hid-noevents@^4.70.0":
+  version "4.70.0"
+  resolved "https://registry.yarnpkg.com/@ledgerhq/hw-transport-node-hid-noevents/-/hw-transport-node-hid-noevents-4.70.0.tgz#c2b235c5b80898b0f78fecc75a19421724a4def9"
+  integrity sha512-i+0zmxlpx+MtXAxJA/rr/M0j4wDDm8hRLu+Xq7dBLky7ANJernyR/Xkrgn0y0VFec20pWk3T00EyIZ3S3M2Uyg==
+  dependencies:
+    "@ledgerhq/devices" "^4.70.0"
+    "@ledgerhq/errors" "^4.70.0"
+    "@ledgerhq/hw-transport" "^4.70.0"
+    "@ledgerhq/logs" "^4.70.0"
+    node-hid "^0.7.9"
+
+"@ledgerhq/hw-transport-node-hid@^4.70.0":
+  version "4.70.0"
+  resolved "https://registry.yarnpkg.com/@ledgerhq/hw-transport-node-hid/-/hw-transport-node-hid-4.70.0.tgz#7ded1ae6d5ad5bf06de1cceadc8480401eef303c"
+  integrity sha512-/KyfYoKLqnJwwRKf6t4oYaTWlUwF2u8+KdyIrPzDcBqCSgml6dYR9hPyem/R8xoHelmn1XuzCd0n5bBBeeNMsQ==
+  dependencies:
+    "@ledgerhq/devices" "^4.70.0"
+    "@ledgerhq/errors" "^4.70.0"
+    "@ledgerhq/hw-transport" "^4.70.0"
+    "@ledgerhq/hw-transport-node-hid-noevents" "^4.70.0"
+    "@ledgerhq/logs" "^4.70.0"
+    lodash "^4.17.15"
+    node-hid "^0.7.9"
+    usb "^1.6.0"
+
 "@ledgerhq/hw-transport-u2f@^4.70.0":
   version "4.70.0"
   resolved "https://registry.yarnpkg.com/@ledgerhq/hw-transport-u2f/-/hw-transport-u2f-4.70.0.tgz#1f10465d7cab016f787c552d05aa48c6bd235a58"
@@ -2147,10 +2172,10 @@
   dependencies:
     "@types/chrome" "^0.0.88"
 
-"@polkadot/types@^0.93.0-beta.3":
-  version "0.93.0-beta.3"
-  resolved "https://registry.yarnpkg.com/@polkadot/types/-/types-0.93.0-beta.3.tgz#2a5843c35b3fb3369390e66236ff20968099b9fe"
-  integrity sha512-RlwhdtnQXq9yHgNwQJ2Rnl0RtklGucPFJE2in6gCNrvAE9V+KbJqXrwGtCqbt/CmGySTZclaL9yJ9Qzg1JgS1w==
+"@polkadot/types@^0.93.0-beta.4":
+  version "0.93.0-beta.4"
+  resolved "https://registry.yarnpkg.com/@polkadot/types/-/types-0.93.0-beta.4.tgz#a4512efa541e10fc7feae5c7d66e6656cc0b8e01"
+  integrity sha512-OdE7WxhNp/+IbMs4ALujMUA5MNK8R9buD7QWDXjWg2DxuavN0UziHkDRNgMasoYlqvn/xDevu8oy+RYyVm/Vkg==
   dependencies:
     "@babel/runtime" "^7.6.0"
     "@polkadot/util" "^1.4.1"
@@ -2424,6 +2449,15 @@
   resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.3.tgz#bdfd69d61e464dcc81b25159c270d75a73c1a636"
   integrity sha512-Il2DtDVRGDcqjDtE+rF8iqg1CArehSK84HZJCT7AMITlyXRBpuPhqGLDQMowraqqu1coEaimg4ZOqggt6L6L+A==
 
+"@types/ledgerhq__hw-transport-node-hid@^4.21.1":
+  version "4.22.1"
+  resolved "https://registry.yarnpkg.com/@types/ledgerhq__hw-transport-node-hid/-/ledgerhq__hw-transport-node-hid-4.22.1.tgz#0f075f8965c7234126eb19bc8d569b73cc9a6f8e"
+  integrity sha512-EVdR5HWKUsuQOeg8DUqyhAtCooPsYpA3q+xvEdcZsgXxD/R8XNuYxSDCKNVyl0nEfobfJisb7f3Ta+Shf58izw==
+  dependencies:
+    "@types/ledgerhq__hw-transport" "*"
+    "@types/node" "*"
+    "@types/node-hid" "*"
+
 "@types/ledgerhq__hw-transport-u2f@^4.21.1":
   version "4.21.1"
   resolved "https://registry.yarnpkg.com/@types/ledgerhq__hw-transport-u2f/-/ledgerhq__hw-transport-u2f-4.21.1.tgz#8193aa3199cc5ba6cf7f9d880a88f2993a6c6c3b"
@@ -2456,6 +2490,13 @@
   dependencies:
     "@types/node" "*"
 
+"@types/node-hid@*":
+  version "0.7.3"
+  resolved "https://registry.yarnpkg.com/@types/node-hid/-/node-hid-0.7.3.tgz#993762b795473dc2ad8ee041f870838735087532"
+  integrity sha512-ip+Un3Ps0Qok3W3fMgYxaYxVYcbjDYM7yXNm8Uf1sggvSeXL/Q+vZG0AdSDWDQO9apQSE7Yieb4SjfymF1OqPA==
+  dependencies:
+    "@types/node" "*"
+
 "@types/node@*", "@types/node@^12.7.5":
   version "12.7.5"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-12.7.5.tgz#e19436e7f8e9b4601005d73673b6dc4784ffcc2f"
@@ -3797,7 +3838,7 @@ binary-extensions@^1.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.13.1.tgz#598afe54755b2868a5330d2aff9d4ebb53209b65"
   integrity sha512-Un7MIEDdUC5gNpcGDV97op1Ywk748MpHcFTHoYs6qnj1Z3j7I53VG3nwZhKzoBZmbdRNnb6WRdFlwl7tSDuZGw==
 
-bindings@^1.5.0:
+bindings@^1.4.0, bindings@^1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.5.0.tgz#10353c9e945334bc0511a6d90b38fbc7c9c504df"
   integrity sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==
@@ -3822,6 +3863,13 @@ bip66@^1.1.5:
   dependencies:
     safe-buffer "^5.0.1"
 
+bl@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-3.0.0.tgz#3611ec00579fd18561754360b21e9f784500ff88"
+  integrity sha512-EUAyP5UHU5hxF8BPT0LKW8gjYLhq1DQIcneOX/pL/m2Alo+OYDQAJlHq+yseMP50Os2nHXOSic6Ss3vSQeyf4A==
+  dependencies:
+    readable-stream "^3.0.1"
+
 blakejs@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/blakejs/-/blakejs-1.1.0.tgz#69df92ef953aa88ca51a32df6ab1c54a155fc7a5"
@@ -5360,6 +5408,13 @@ decode-uri-component@^0.2.0:
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
   integrity sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=
 
+decompress-response@^3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/decompress-response/-/decompress-response-3.3.0.tgz#80a4dd323748384bfa248083622aedec982adff3"
+  integrity sha1-gKTdMjdIOEv6JICDYirt7Jgq3/M=
+  dependencies:
+    mimic-response "^1.0.0"
+
 dedent@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.7.0.tgz#2495ddbaf6eb874abb0e1be9df22d2e5a544326c"
@@ -5517,7 +5572,7 @@ detect-indent@^5.0.0:
   resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-5.0.0.tgz#3871cc0a6a002e8c3e5b3cf7f336264675f06b9d"
   integrity sha1-OHHMCmoALow+Wzz38zYmRnXwa50=
 
-detect-libc@^1.0.2:
+detect-libc@^1.0.2, detect-libc@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
   integrity sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=
@@ -5817,7 +5872,7 @@ encoding@^0.1.11:
   dependencies:
     iconv-lite "~0.4.13"
 
-end-of-stream@^1.0.0, end-of-stream@^1.1.0:
+end-of-stream@^1.0.0, end-of-stream@^1.1.0, end-of-stream@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.1.tgz#ed29634d19baba463b6ce6b80a37213eab71ec43"
   integrity sha512-1MkrZNvWTKCaigbn+W15elq2BB/L22nqrSY5DKlo3X6+vclJm8Bb5djXJBmEX6fS3+zCh/F4VBK5Z2KxJt4s2Q==
@@ -6387,6 +6442,11 @@ expand-range@^1.8.1:
   dependencies:
     fill-range "^2.1.0"
 
+expand-template@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/expand-template/-/expand-template-2.0.3.tgz#6e14b3fcee0f3a6340ecb57d2e8918692052a47c"
+  integrity sha512-XYfuKMvj4O35f/pOXLObndIRvyQ+/+6AhODh+OKWj9S9498pHHn/IMszH+gt0fBCRWMNfk1ZSp5x3AifmnI2vg==
+
 expand-tilde@^2.0.0, expand-tilde@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/expand-tilde/-/expand-tilde-2.0.2.tgz#97e801aa052df02454de46b02bf621642cdc8502"
@@ -6910,6 +6970,11 @@ from2@^2.1.0:
     inherits "^2.0.1"
     readable-stream "^2.0.0"
 
+fs-constants@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs-constants/-/fs-constants-1.0.0.tgz#6be0de9be998ce16af8afc24497b9ee9b7ccd9ad"
+  integrity sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==
+
 fs-extra@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-1.0.0.tgz#cd3ce5f7e7cb6145883fcae3191e9877f8587950"
@@ -7141,6 +7206,11 @@ gitconfiglocal@^1.0.0:
   dependencies:
     ini "^1.3.2"
 
+github-from-package@0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/github-from-package/-/github-from-package-0.0.0.tgz#97fb5d96bfde8973313f20e8288ef9a167fa64ce"
+  integrity sha1-l/tdlr/eiXMxPyDoKI75oWf6ZM4=
+
 glob-base@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
@@ -10148,6 +10218,11 @@ mimic-fn@^2.0.0, mimic-fn@^2.1.0:
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
   integrity sha512-OqbOk5oEQeAZ8WXWydlu9HJjz9WVdEIvamMCcXmuqUYjTknH/sqsWvhQ3vgwKFRR1HpjvNBKQ37nbJgYzGqGcg==
 
+mimic-response@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-1.0.1.tgz#4923538878eef42063cb8a3e3b0798781487ab1b"
+  integrity sha512-j5EctnkH7amfV/q5Hgmoal1g2QHFJRraOtmx0JpIqkxhBhI/lJSl1nMpQ45hVarwNETOoWEimndZ4QK0RHxuxQ==
+
 min-document@^2.19.0:
   version "2.19.0"
   resolved "https://registry.yarnpkg.com/min-document/-/min-document-2.19.0.tgz#7bd282e3f5842ed295bb748cdd9f1ffa2c824685"
@@ -10368,7 +10443,12 @@ mz@^2.5.0, mz@^2.7.0:
     object-assign "^4.0.1"
     thenify-all "^1.0.0"
 
-nan@^2.12.1, nan@^2.14.0:
+nan@2.13.2:
+  version "2.13.2"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.13.2.tgz#f51dc7ae66ba7d5d55e1e6d4d8092e802c9aefe7"
+  integrity sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw==
+
+nan@^2.12.1, nan@^2.13.2, nan@^2.14.0:
   version "2.14.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
   integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
@@ -10395,6 +10475,11 @@ nanomatch@^1.2.9:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
+napi-build-utils@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/napi-build-utils/-/napi-build-utils-1.0.1.tgz#1381a0f92c39d66bf19852e7873432fc2123e508"
+  integrity sha512-boQj1WFgQH3v4clhu3mTNfP+vOBxorDlE8EKiMjUlLG3C4qAESnn9AxIOkFgTR2c9LtzNjPrjS60cT27ZKBhaA==
+
 natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
@@ -10447,6 +10532,13 @@ no-case@^2.2.0:
   dependencies:
     lower-case "^1.1.1"
 
+node-abi@^2.7.0:
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/node-abi/-/node-abi-2.11.0.tgz#b7dce18815057544a049be5ae75cd1fdc2e9ea59"
+  integrity sha512-kuy/aEg75u40v378WRllQ4ZexaXJiCvB68D2scDXclp/I4cRq6togpbOoKhmN07tns9Zldu51NNERo0wehfX9g==
+  dependencies:
+    semver "^5.4.1"
+
 node-fetch-npm@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/node-fetch-npm/-/node-fetch-npm-2.0.2.tgz#7258c9046182dca345b4208eda918daf33697ff7"
@@ -10491,6 +10583,15 @@ node-gyp@^5.0.2:
     tar "^4.4.8"
     which "1"
 
+node-hid@^0.7.9:
+  version "0.7.9"
+  resolved "https://registry.yarnpkg.com/node-hid/-/node-hid-0.7.9.tgz#cc0cdf1418a286a7667f0b63642b5eeb544ccd05"
+  integrity sha512-vJnonTqmq3frCyTumJqG4g2IZcny3ynkfmbfDfQ90P3ZhRzcWYS/Um1ux6HFmAxmkaQnrZqIYHcGpL7kdqY8jA==
+  dependencies:
+    bindings "^1.5.0"
+    nan "^2.13.2"
+    prebuild-install "^5.3.0"
+
 node-int64@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/node-int64/-/node-int64-0.4.0.tgz#87a9065cdb355d3182d8f94ce11188b825c68a3b"
@@ -10564,6 +10665,11 @@ node-releases@^1.1.29:
   dependencies:
     semver "^5.3.0"
 
+noop-logger@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/noop-logger/-/noop-logger-0.1.1.tgz#94a2b1633c4f1317553007d8966fd0e841b6a4c2"
+  integrity sha1-lKKxYzxPExdVMAfYlm/Q6EG2pMI=
+
 nopt@1.0.10:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-1.0.10.tgz#6ddd21bd2a31417b92727dd585f8a6f37608ebee"
@@ -10697,7 +10803,7 @@ npm-run-path@^3.0.0:
   dependencies:
     path-key "^3.0.0"
 
-"npmlog@0 || 1 || 2 || 3 || 4", npmlog@^4.0.2, npmlog@^4.1.2:
+"npmlog@0 || 1 || 2 || 3 || 4", npmlog@^4.0.1, npmlog@^4.0.2, npmlog@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
   integrity sha512-2uUqazuKlTaSI/dC8AzicUck7+IrEaOnN/e0jd3Xtt1KcGpwx30v50mL7oPyr/h9bL3E4aZccVwpwP+5W9Vjkg==
@@ -11890,6 +11996,27 @@ postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.14, postcss@^7.0.16, postcss@^7.0.1
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
+prebuild-install@^5.2.4, prebuild-install@^5.3.0:
+  version "5.3.2"
+  resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-5.3.2.tgz#6392e9541ac0b879ef0f22b3d65037417eb2035e"
+  integrity sha512-INDfXzTPnhT+WYQemqnAXlP7SvfiFMopMozSgXCZ+RDLb279gKfIuLk4o7PgEawLp3WrMgIYGBpkxpraROHsSA==
+  dependencies:
+    detect-libc "^1.0.3"
+    expand-template "^2.0.3"
+    github-from-package "0.0.0"
+    minimist "^1.2.0"
+    mkdirp "^0.5.1"
+    napi-build-utils "^1.0.1"
+    node-abi "^2.7.0"
+    noop-logger "^0.1.1"
+    npmlog "^4.0.1"
+    pump "^3.0.0"
+    rc "^1.2.7"
+    simple-get "^3.0.3"
+    tar-fs "^2.0.0"
+    tunnel-agent "^0.6.0"
+    which-pm-runs "^1.0.0"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -12500,7 +12627,7 @@ read@1, read@~1.0.1:
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
-"readable-stream@2 || 3", readable-stream@^3.0.2, readable-stream@^3.0.6, readable-stream@^3.1.1:
+"readable-stream@2 || 3", readable-stream@^3.0.1, readable-stream@^3.0.2, readable-stream@^3.0.6, readable-stream@^3.1.1:
   version "3.4.0"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.4.0.tgz#a51c26754658e0a3c21dbf59163bd45ba6f447fc"
   integrity sha512-jItXPLmrSR8jmTRmRWJXCnGJsfy85mB3Wd/uINMXA65yrnFo0cPClFIUWzo2najVNSl+mx7/4W8ttlLWJe99pQ==
@@ -13264,6 +13391,20 @@ signal-exit@^3.0.0, signal-exit@^3.0.2:
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
   integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
 
+simple-concat@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/simple-concat/-/simple-concat-1.0.0.tgz#7344cbb8b6e26fb27d66b2fc86f9f6d5997521c6"
+  integrity sha1-c0TLuLbib7J9ZrL8hvn21Zl1IcY=
+
+simple-get@^3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/simple-get/-/simple-get-3.0.3.tgz#924528ac3f9d7718ce5e9ec1b1a69c0be4d62efa"
+  integrity sha512-Wvre/Jq5vgoz31Z9stYWPLn0PqRqmBDpFSdypAnHu5AvRVCYPRYGnvryNLiXu8GOBNDH82J2FRHUGMjjHUpXFw==
+  dependencies:
+    decompress-response "^3.3.0"
+    once "^1.3.1"
+    simple-concat "^1.0.0"
+
 simple-plist@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/simple-plist/-/simple-plist-1.0.0.tgz#bed3085633b22f371e111f45d159a1ccf94b81eb"
@@ -13949,6 +14090,27 @@ tapable@^1.0.0, tapable@^1.1.3:
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.1.3.tgz#a1fccc06b58db61fd7a45da2da44f5f3a3e67ba2"
   integrity sha512-4WK/bYZmj8xLr+HUCODHGF1ZFzsYffasLUgEiMBY4fgtltdO6B4WJtlSbPaDTLpYTcGVwM2qLnFTICEcNxs3kA==
 
+tar-fs@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/tar-fs/-/tar-fs-2.0.0.tgz#677700fc0c8b337a78bee3623fdc235f21d7afad"
+  integrity sha512-vaY0obB6Om/fso8a8vakQBzwholQ7v5+uy+tF3Ozvxv1KNezmVQAiWtcNmMHFSFPqL3dJA8ha6gdtFbfX9mcxA==
+  dependencies:
+    chownr "^1.1.1"
+    mkdirp "^0.5.1"
+    pump "^3.0.0"
+    tar-stream "^2.0.0"
+
+tar-stream@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-2.1.0.tgz#d1aaa3661f05b38b5acc9b7020efdca5179a2cc3"
+  integrity sha512-+DAn4Nb4+gz6WZigRzKEZl1QuJVOLtAwwF+WUxy1fJ6X63CaGaUAxJRD2KEn1OMfcbCjySTYpNC6WmfQoIEOdw==
+  dependencies:
+    bl "^3.0.0"
+    end-of-stream "^1.4.1"
+    fs-constants "^1.0.0"
+    inherits "^2.0.3"
+    readable-stream "^3.1.1"
+
 tar@^4, tar@^4.4.10, tar@^4.4.8:
   version "4.4.10"
   resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.10.tgz#946b2810b9a5e0b26140cf78bea6b0b0d689eba1"
@@ -14578,6 +14740,15 @@ url@^0.11.0:
     punycode "1.3.2"
     querystring "0.2.0"
 
+usb@^1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/usb/-/usb-1.6.0.tgz#bc5d4decf4ffca32d1136717edcf73366137a789"
+  integrity sha512-52DyWlCk9K+iw3LnvY95WXSnpHjxJoI++aGkV8HiMNPc4zmvDQlYvWAzrkbJ2JH3oUcx26XfU5sZcG4RAcVkMg==
+  dependencies:
+    bindings "^1.4.0"
+    nan "2.13.2"
+    prebuild-install "^5.2.4"
+
 use@^3.1.0:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/use/-/use-3.1.1.tgz#d50c8cac79a19fbc20f2911f56eb973f4e10070f"
@@ -15105,6 +15276,11 @@ which-module@^2.0.0:
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
   integrity sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=
 
+which-pm-runs@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/which-pm-runs/-/which-pm-runs-1.0.0.tgz#670b3afbc552e0b55df6b7780ca74615f23ad1cb"
+  integrity sha1-Zws6+8VS4LVd9rd4DKdGFfI60cs=
+
 which@1, which@^1.2.14, which@^1.2.9, which@^1.3.0, which@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"