diff --git a/.github/actions/setup/action.yaml b/.github/actions/setup/action.yaml
deleted file mode 100644
index ce6e1cd18..000000000
--- a/.github/actions/setup/action.yaml
+++ /dev/null
@@ -1,24 +0,0 @@
-name: Setup
-
-runs:
-  using: composite
-  steps:
-    - uses: actions/setup-node@v2
-      with:
-        node-version: 14
-        registry-url: https://registry.npmjs.org
-
-    - id: yarn-cache-dir-path
-      run: echo "::set-output name=dir::$(yarn cache dir)"
-      shell: bash
-
-    - id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
-      uses: actions/cache@v2
-      with:
-        path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-        key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-        restore-keys: |
-          ${{ runner.os }}-yarn-
-
-    - run: yarn install --frozen-lockfile
-      shell: bash
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
deleted file mode 100644
index 99043e5a8..000000000
--- a/.github/workflows/build.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: Build
-
-on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-
-      - uses: ./.github/actions/setup
-
-      - run: yarn build
diff --git a/.github/workflows/semantic-commit.yaml b/.github/workflows/conventional-commit.yaml
similarity index 91%
rename from .github/workflows/semantic-commit.yaml
rename to .github/workflows/conventional-commit.yaml
index c2da36667..972358f04 100644
--- a/.github/workflows/semantic-commit.yaml
+++ b/.github/workflows/conventional-commit.yaml
@@ -1,4 +1,4 @@
-name: "Semantic commit"
+name: Conventional commit
 
 on:
   pull_request_target:
diff --git a/.github/workflows/crowdin-download.yaml b/.github/workflows/crowdin-download.yaml
index 963f76ed5..1599031ec 100644
--- a/.github/workflows/crowdin-download.yaml
+++ b/.github/workflows/crowdin-download.yaml
@@ -1,4 +1,4 @@
-name: Crowdin download
+name: Crowdin Download
 
 on:
   schedule:
@@ -10,11 +10,17 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - uses: ./.github/actions/setup
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 14
+          registry-url: https://registry.npmjs.org
+          cache: 'yarn'
+
+      - run: yarn install --frozen-lockfile --ignore-scripts
 
-      - run: "yarn i18n:extract"
+      - run: yarn i18n:extract
 
       - uses: crowdin/github-action@1.4.8
         with:
diff --git a/.github/workflows/crowdin-upload.yaml b/.github/workflows/crowdin-upload.yaml
index c500ce148..28c338d1e 100644
--- a/.github/workflows/crowdin-upload.yaml
+++ b/.github/workflows/crowdin-upload.yaml
@@ -1,4 +1,4 @@
-name: Crowdin upload
+name: Crowdin Upload
 
 on:
   push:
@@ -10,9 +10,15 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - uses: ./.github/actions/setup
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 14
+          registry-url: https://registry.npmjs.org
+          cache: 'yarn'
+
+      - run: yarn install --frozen-lockfile --ignore-scripts
 
       - run: yarn i18n:extract
 
diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
deleted file mode 100644
index 48ca4fc2e..000000000
--- a/.github/workflows/e2e.yaml
+++ /dev/null
@@ -1,21 +0,0 @@
-name: "Integration test"
-
-on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
-
-jobs:
-  e2e-test:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-
-      - uses: ./.github/actions/setup
-
-      - run: yarn hardhat &
-
-      - run: yarn test:e2e
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index f6b8a8c8c..d6228965e 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -16,9 +16,15 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - uses: ./.github/actions/setup
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 14
+          registry-url: https://registry.npmjs.org
+          cache: 'yarn'
+
+      - run: yarn install --frozen-lockfile --ignore-scripts
 
       - uses: wearerequired/lint-action@v2
         with:
@@ -26,4 +32,4 @@ jobs:
           eslint: true
           eslint_extensions: 'js,jsx,ts,tsx'
           git_email: lint-action@uniswap.org
-          commit_message: "chore(lint): fix code style issues with ${linter}"
+          commit_message: "style(lint): lint action with ${linter}"
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index eca7fa7ac..9f6ff7e3a 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -7,19 +7,23 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - uses: ./.github/actions/setup
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 14
+          registry-url: https://registry.npmjs.org
+          cache: 'yarn'
 
-      - run: yarn lint
+      - run: yarn install --frozen-lockfile
 
       - run: yarn test
         if: success()
 
-      - run: yarn hardhat &
-        if: success()
-
       - run: yarn test:e2e
+        if: success()
+        env:
+          JSON_RPC_PROVIDER: ${{ secrets.JSON_RPC_PROVIDER }}
 
       - run: yarn release
         if: success()
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 74291c065..46363aaca 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -1,4 +1,4 @@
-name: "Unit test"
+name: Test
 
 on:
   push:
@@ -9,11 +9,21 @@ on:
       - main
 
 jobs:
-  unit-test:
+  test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - uses: ./.github/actions/setup
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 14
+          registry-url: https://registry.npmjs.org
+          cache: 'yarn'
+
+      - run: yarn install --frozen-lockfile
 
       - run: yarn test
+
+      - run: yarn test:e2e
+        env:
+          JSON_RPC_PROVIDER: ${{ secrets.JSON_RPC_PROVIDER }}
diff --git a/.gitignore b/.gitignore
index b361a5020..706df9d4d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,6 +27,7 @@ package-lock.json
 # misc
 .DS_Store
 /.netlify
+.env
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 9479d87f3..c3d4e9343 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,13 +1,21 @@
-
 # Contributing
 
 Thank you for your interest in contributing to the Uniswap widgets! 🦄
 
 # Development
 
-Before developing locally, be sure to install the project's dependencies.
+Before developing locally, you'll need install the project's dependencies and create a `.env` file.
+
+- `yarn install`
+
+The `.env` file specifies third-party APIs for use in e2e testing and the cosmos viewer:
+- `JSON_RPC_PROVIDER` must be specified for e2e tests to work.
+- `INFURA_KEY` must be specified to use a network provider in the cosmos viewer.
 
-1. `yarn install`
+```
+JSON_RPC_PROVIDER='<JSON_RPC_PROVIDER>`
+INFURA_KEY='<INFURA_KEY>'
+```
 
 ## Running widgets locally
 
diff --git a/e2e/connect.test.tsx b/e2e/connect.test.tsx
index 79271a853..d6c922e5a 100644
--- a/e2e/connect.test.tsx
+++ b/e2e/connect.test.tsx
@@ -1,14 +1,15 @@
+/**
+ * @jest-environment hardhat/dist/jsdom
+ */
+
 import '@ethersproject/providers'
+import 'jest-environment-hardhat'
 
-import { JsonRpcProvider } from '@ethersproject/providers'
 import { render, RenderResult, waitFor } from '@testing-library/react'
 import { tokens } from '@uniswap/default-token-list'
 
 import { SwapWidget } from '../src'
 
-const JSON_RPC_ENDPOINT = 'http://127.0.0.1:8545/'
-const provider = new JsonRpcProvider('http://127.0.0.1:8545/')
-
 describe('connect', () => {
   let component: RenderResult
   let wallet: HTMLElement
@@ -27,7 +28,7 @@ describe('connect', () => {
 
   describe('with jsonRpcEndpoint', () => {
     it('prompts for wallet connection in the Wallet', async () => {
-      component.rerender(<SwapWidget tokenList={tokens} jsonRpcEndpoint={JSON_RPC_ENDPOINT} />)
+      component.rerender(<SwapWidget tokenList={tokens} jsonRpcEndpoint={hardhat.url} />)
       expect(wallet.hidden).toBeTruthy()
       expect(toolbar.textContent).toBe('Connecting…')
 
@@ -40,7 +41,7 @@ describe('connect', () => {
 
   describe('with provider', () => {
     it('does not prompt for wallet connection', async () => {
-      component.rerender(<SwapWidget tokenList={tokens} provider={provider} />)
+      component.rerender(<SwapWidget tokenList={tokens} provider={hardhat.provider} />)
       expect(wallet.hidden).toBeTruthy()
       expect(toolbar.textContent).toBe('Connecting…')
 
diff --git a/hardhat.config.js b/hardhat.config.js
deleted file mode 100644
index 77ff596c8..000000000
--- a/hardhat.config.js
+++ /dev/null
@@ -1,13 +0,0 @@
-const mainnetFork = {
-  url: 'https://eth-mainnet.alchemyapi.io/v2/lhVWQ3rY2i5_OZtYkU4Lzg_OsDT97Eoz',
-  blockNumber: 13582625,
-}
-
-module.exports = {
-  networks: {
-    hardhat: {
-      chainId: 1,
-      forking: mainnetFork,
-    },
-  },
-}
diff --git a/hardhat.config.ts b/hardhat.config.ts
new file mode 100644
index 000000000..159afc2ed
--- /dev/null
+++ b/hardhat.config.ts
@@ -0,0 +1,22 @@
+import '@nomiclabs/hardhat-ethers'
+
+import * as dotenv from 'dotenv'
+
+dotenv.config()
+
+const mainnetFork = {
+  url: `${process.env.JSON_RPC_PROVIDER}`,
+  blockNumber: 14390000,
+}
+
+module.exports = {
+  networks: {
+    hardhat: {
+      chainId: 1,
+      forking: mainnetFork,
+      accounts: {
+        count: 1,
+      },
+    },
+  },
+}
diff --git a/jest.config.js b/jest.config.js
index da54c41e3..eef78a3b7 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -1,8 +1,8 @@
 module.exports = {
-  setupFiles: ['<rootDir>/test/setup.ts'],
   testEnvironment: 'jsdom',
   moduleNameMapper: {
     '.scss$': '<rootDir>/test/scssStub',
     '.(png|svg)$': '<rootDir>/test/imageStub',
   },
+  setupFiles: ['<rootDir>/test/setup.ts'],
 }
diff --git a/package.json b/package.json
index 41f656666..6220162ec 100644
--- a/package.json
+++ b/package.json
@@ -38,9 +38,8 @@
     "build": "tsc && rollup --config --failAfterWarnings",
     "release": "semantic-release",
     "lint": "eslint .",
-    "hardhat": "hardhat node",
-    "test": "jest --testPathIgnorePatterns=e2e",
-    "test:e2e": "jest --testPathPattern=e2e"
+    "test": "jest src",
+    "test:e2e": "jest e2e"
   },
   "browserslist": {
     "production": [
@@ -118,6 +117,7 @@
     "@lingui/core": "^3.9.0",
     "@lingui/macro": "^3.9.0",
     "@lingui/react": "^3.9.0",
+    "@nomiclabs/hardhat-ethers": "^2.0.6",
     "@rollup/plugin-babel": "^5.3.0",
     "@rollup/plugin-commonjs": "^21.0.1",
     "@rollup/plugin-json": "^4.1.0",
@@ -148,6 +148,7 @@
     "@typescript-eslint/eslint-plugin": "^5.21.0",
     "@typescript-eslint/parser": "^5.21.0",
     "@uniswap/default-token-list": "^3.2.0",
+    "jest-environment-hardhat": "^1.1.4",
     "@uniswap/v2-core": "1.0.0",
     "@uniswap/v2-periphery": "^1.1.0-beta.0",
     "@uniswap/v3-core": "1.0.0",
@@ -160,6 +161,7 @@
     "babel-plugin-macros": "^3.1.0",
     "babel-plugin-module-resolver": "^4.1.0",
     "babel-runtime": "^6.26.0",
+    "dotenv": "^16.0.1",
     "eslint": "^7.11.0",
     "eslint-config-prettier": "^6.11.0",
     "eslint-config-react-app": "^7.0.1",
@@ -169,7 +171,7 @@
     "eslint-plugin-react-hooks": "^4.5.0",
     "eslint-plugin-simple-import-sort": "^7.0.0",
     "eslint-plugin-unused-imports": "^2.0.0",
-    "hardhat": "^2.9.3",
+    "hardhat": "^2.9.6",
     "html-webpack-plugin": "^5.5.0",
     "inter-ui": "^3.13.1",
     "jest": "^27.5.1",
diff --git a/src/cosmos/useJsonRpcEndpoint.ts b/src/cosmos/useJsonRpcEndpoint.ts
index e8df4ec44..39f423df1 100644
--- a/src/cosmos/useJsonRpcEndpoint.ts
+++ b/src/cosmos/useJsonRpcEndpoint.ts
@@ -1,25 +1,27 @@
 import { SupportedChainId } from '@uniswap/widgets'
 
-import useOption from './useOption'
+import useOption, { NONE } from './useOption'
 
 const INFURA_KEY = process.env.INFURA_KEY
-if (typeof INFURA_KEY === 'undefined') {
-  throw new Error(`INFURA_KEY must be a defined environment variable`)
+if (INFURA_KEY === undefined) {
+  console.warn(`INFURA_KEY must be a defined environment variable to use JsonRpcEndpoints in the cosmos viewer`)
 }
 
-export const INFURA_NETWORK_URLS: { [key in SupportedChainId]: string } = {
-  [SupportedChainId.MAINNET]: `https://mainnet.infura.io/v3/${INFURA_KEY}`,
-  [SupportedChainId.RINKEBY]: `https://rinkeby.infura.io/v3/${INFURA_KEY}`,
-  [SupportedChainId.ROPSTEN]: `https://ropsten.infura.io/v3/${INFURA_KEY}`,
-  [SupportedChainId.GOERLI]: `https://goerli.infura.io/v3/${INFURA_KEY}`,
-  [SupportedChainId.KOVAN]: `https://kovan.infura.io/v3/${INFURA_KEY}`,
-  [SupportedChainId.OPTIMISM]: `https://optimism-mainnet.infura.io/v3/${INFURA_KEY}`,
-  [SupportedChainId.OPTIMISTIC_KOVAN]: `https://optimism-kovan.infura.io/v3/${INFURA_KEY}`,
-  [SupportedChainId.ARBITRUM_ONE]: `https://arbitrum-mainnet.infura.io/v3/${INFURA_KEY}`,
-  [SupportedChainId.ARBITRUM_RINKEBY]: `https://arbitrum-rinkeby.infura.io/v3/${INFURA_KEY}`,
-  [SupportedChainId.POLYGON]: `https://polygon-mainnet.infura.io/v3/${INFURA_KEY}`,
-  [SupportedChainId.POLYGON_MUMBAI]: `https://polygon-mumbai.infura.io/v3/${INFURA_KEY}`,
-}
+export const INFURA_NETWORK_URLS: { [key in SupportedChainId]?: string } = INFURA_KEY
+  ? {
+      [SupportedChainId.MAINNET]: `https://mainnet.infura.io/v3/${INFURA_KEY}`,
+      [SupportedChainId.RINKEBY]: `https://rinkeby.infura.io/v3/${INFURA_KEY}`,
+      [SupportedChainId.ROPSTEN]: `https://ropsten.infura.io/v3/${INFURA_KEY}`,
+      [SupportedChainId.GOERLI]: `https://goerli.infura.io/v3/${INFURA_KEY}`,
+      [SupportedChainId.KOVAN]: `https://kovan.infura.io/v3/${INFURA_KEY}`,
+      [SupportedChainId.OPTIMISM]: `https://optimism-mainnet.infura.io/v3/${INFURA_KEY}`,
+      [SupportedChainId.OPTIMISTIC_KOVAN]: `https://optimism-kovan.infura.io/v3/${INFURA_KEY}`,
+      [SupportedChainId.ARBITRUM_ONE]: `https://arbitrum-mainnet.infura.io/v3/${INFURA_KEY}`,
+      [SupportedChainId.ARBITRUM_RINKEBY]: `https://arbitrum-rinkeby.infura.io/v3/${INFURA_KEY}`,
+      [SupportedChainId.POLYGON]: `https://polygon-mainnet.infura.io/v3/${INFURA_KEY}`,
+      [SupportedChainId.POLYGON_MUMBAI]: `https://polygon-mumbai.infura.io/v3/${INFURA_KEY}`,
+    }
+  : {}
 
 export default function useJsonRpcEndpoint() {
   const endpoints = Object.entries(INFURA_NETWORK_URLS).reduce(
@@ -29,5 +31,9 @@ export default function useJsonRpcEndpoint() {
     }),
     {}
   )
-  return useOption('jsonRpcEndpoint', { options: endpoints, defaultValue: SupportedChainId[SupportedChainId.MAINNET] })
+
+  return useOption('jsonRpcEndpoint', {
+    options: endpoints,
+    defaultValue: INFURA_NETWORK_URLS[SupportedChainId.MAINNET] ? SupportedChainId[SupportedChainId.MAINNET] : NONE,
+  })
 }
diff --git a/src/cosmos/useOption.ts b/src/cosmos/useOption.ts
index 0d9d2c829..0f39cf65f 100644
--- a/src/cosmos/useOption.ts
+++ b/src/cosmos/useOption.ts
@@ -1,6 +1,6 @@
 import { useSelect } from 'react-cosmos/fixture'
 
-const NONE = 'None'
+export const NONE = 'None'
 
 export default function useOption<T>(
   label: string,
diff --git a/src/cosmos/useProvider.ts b/src/cosmos/useProvider.ts
index d87f98459..26dec782e 100644
--- a/src/cosmos/useProvider.ts
+++ b/src/cosmos/useProvider.ts
@@ -17,7 +17,7 @@ const [walletConnect] = initializeConnector<WalletConnect>(
 )
 
 export default function useProvider() {
-  const connectorType = useOption('provider', { options: [Wallet.MetaMask, Wallet.WalletConnect] })
+  const connectorType = useOption<Wallet | undefined>('provider', { options: [Wallet.MetaMask, Wallet.WalletConnect] })
   const [connector, setConnector] = useState<Connector>()
   useEffect(() => {
     let stale = false
diff --git a/src/hooks/useBlockNumber.tsx b/src/hooks/useBlockNumber.tsx
index e9c2dba9f..434d7e248 100644
--- a/src/hooks/useBlockNumber.tsx
+++ b/src/hooks/useBlockNumber.tsx
@@ -66,7 +66,7 @@ export function BlockNumberProvider({ children }: { children: ReactNode }) {
       library.on('block', onBlock)
       return () => {
         stale = true
-        library.removeListener('block', onBlock)
+        library.off('block', onBlock)
       }
     }
     return undefined
diff --git a/webpack.override.js b/webpack.override.js
index 2d74c3310..82732184b 100644
--- a/webpack.override.js
+++ b/webpack.override.js
@@ -7,6 +7,8 @@ const rollup = require('rollup')
 const { config: rollupConfig, assets: assetConfigs } = require('./rollup.config.js')
 const path = require('path')
 
+require('dotenv').config()
+
 class RollupPlugin extends EventEmitter {
   static PLUGIN_NAME = 'rollup-watch'
 
@@ -75,9 +77,7 @@ module.exports = (webpackConfig) => {
     },
     plugins: [
       new RollupPlugin({ config: rollupConfig, assetConfigs, watch: mode !== 'production' }),
-      new DefinePlugin({
-        'process.env.INFURA_KEY': JSON.stringify(process.env.INFURA_KEY || '4bf032f2d38a4ed6bb975b80d6340847'),
-      }),
+      new DefinePlugin({ 'process.env.INFURA_KEY': JSON.stringify(process.env.INFURA_KEY) }),
       new HtmlWebpackPlugin(),
     ],
     stats: 'errors-warnings',
diff --git a/yarn.lock b/yarn.lock
index 428c07940..1a504dbe1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -29,7 +29,7 @@
   resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.17.10.tgz#711dc726a492dfc8be8220028b1b92482362baab"
   integrity sha512-GZt/TCsG70Ms19gfZO1tM4CVnXsPgEPBCpJu+Qz3L0LUDsY5nZqFZglIoPC1kIYOtNBZlrnFT+klg12vFGZXrw==
 
-"@babel/core@^7.1.0", "@babel/core@^7.12.3", "@babel/core@^7.15.5", "@babel/core@^7.16.0", "@babel/core@^7.7.2", "@babel/core@^7.8.0":
+"@babel/core@^7.1.0", "@babel/core@^7.12.3", "@babel/core@^7.15.5", "@babel/core@^7.16.0":
   version "7.17.10"
   resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.17.10.tgz#74ef0fbf56b7dfc3f198fc2d927f4f03e12f4b05"
   integrity sha512-liKoppandF3ZcBnIYFjfSDHZLKdLHGJRkoWtG8zQyGJBQfIYobpnVGI5+pLBNtS6psFLDzyq8+h5HiVljW9PNA==
@@ -50,6 +50,27 @@
     json5 "^2.2.1"
     semver "^6.3.0"
 
+"@babel/core@^7.7.2", "@babel/core@^7.8.0":
+  version "7.17.12"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.17.12.tgz#b4eb2d7ebc3449b062381644c93050db545b70ee"
+  integrity sha512-44ODe6O1IVz9s2oJE3rZ4trNNKTX9O7KpQpfAP4t8QII/zwrVRHL7i2pxhqtcY7tqMLrrKfMlBKnm1QlrRFs5w==
+  dependencies:
+    "@ampproject/remapping" "^2.1.0"
+    "@babel/code-frame" "^7.16.7"
+    "@babel/generator" "^7.17.12"
+    "@babel/helper-compilation-targets" "^7.17.10"
+    "@babel/helper-module-transforms" "^7.17.12"
+    "@babel/helpers" "^7.17.9"
+    "@babel/parser" "^7.17.12"
+    "@babel/template" "^7.16.7"
+    "@babel/traverse" "^7.17.12"
+    "@babel/types" "^7.17.12"
+    convert-source-map "^1.7.0"
+    debug "^4.1.0"
+    gensync "^1.0.0-beta.2"
+    json5 "^2.2.1"
+    semver "^6.3.0"
+
 "@babel/eslint-parser@^7.16.3":
   version "7.17.0"
   resolved "https://registry.yarnpkg.com/@babel/eslint-parser/-/eslint-parser-7.17.0.tgz#eabb24ad9f0afa80e5849f8240d0e5facc2d90d6"
@@ -68,6 +89,15 @@
     "@jridgewell/gen-mapping" "^0.1.0"
     jsesc "^2.5.1"
 
+"@babel/generator@^7.17.12":
+  version "7.17.12"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.17.12.tgz#5970e6160e9be0428e02f4aba62d8551ec366cc8"
+  integrity sha512-V49KtZiiiLjH/CnIW6OjJdrenrGoyh6AmKQ3k2AZFKozC1h846Q4NYlZ5nqAigPDUXfGzC88+LOUuG8yKd2kCw==
+  dependencies:
+    "@babel/types" "^7.17.12"
+    "@jridgewell/gen-mapping" "^0.3.0"
+    jsesc "^2.5.1"
+
 "@babel/helper-annotate-as-pure@^7.0.0", "@babel/helper-annotate-as-pure@^7.16.7":
   version "7.16.7"
   resolved "https://registry.yarnpkg.com/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.16.7.tgz#bb2339a7534a9c128e3102024c60760a3a7f3862"
@@ -185,6 +215,20 @@
     "@babel/traverse" "^7.17.3"
     "@babel/types" "^7.17.0"
 
+"@babel/helper-module-transforms@^7.17.12":
+  version "7.17.12"
+  resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.17.12.tgz#bec00139520cb3feb078ef7a4578562480efb77e"
+  integrity sha512-t5s2BeSWIghhFRPh9XMn6EIGmvn8Lmw5RVASJzkIx1mSemubQQBNIZiQD7WzaFmaHIrjAec4x8z9Yx8SjJ1/LA==
+  dependencies:
+    "@babel/helper-environment-visitor" "^7.16.7"
+    "@babel/helper-module-imports" "^7.16.7"
+    "@babel/helper-simple-access" "^7.17.7"
+    "@babel/helper-split-export-declaration" "^7.16.7"
+    "@babel/helper-validator-identifier" "^7.16.7"
+    "@babel/template" "^7.16.7"
+    "@babel/traverse" "^7.17.12"
+    "@babel/types" "^7.17.12"
+
 "@babel/helper-optimise-call-expression@^7.16.7":
   version "7.16.7"
   resolved "https://registry.yarnpkg.com/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.16.7.tgz#a34e3560605abbd31a18546bd2aad3e6d9a174f2"
@@ -281,6 +325,11 @@
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.17.10.tgz#873b16db82a8909e0fbd7f115772f4b739f6ce78"
   integrity sha512-n2Q6i+fnJqzOaq2VkdXxy2TCPCWQZHiCo0XqmrCvDWcZQKRyZzYi4Z0yxlBuN0w+r2ZHmre+Q087DSrw3pbJDQ==
 
+"@babel/parser@^7.17.12":
+  version "7.17.12"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.17.12.tgz#36c2ed06944e3691ba82735fc4cf62d12d491a23"
+  integrity sha512-FLzHmN9V3AJIrWfOpvRlZCeVg/WLdicSnTMsLur6uDj9TT8ymUlG9XxURdW/XvuygK+2CW0poOJABdA4m/YKxA==
+
 "@babel/plugin-bugfix-safari-id-destructuring-collision-in-function-expression@^7.16.7":
   version "7.16.7"
   resolved "https://registry.yarnpkg.com/@babel/plugin-bugfix-safari-id-destructuring-collision-in-function-expression/-/plugin-bugfix-safari-id-destructuring-collision-in-function-expression-7.16.7.tgz#4eda6d6c2a0aa79c70fa7b6da67763dfe2141050"
@@ -1048,6 +1097,22 @@
     debug "^4.1.0"
     globals "^11.1.0"
 
+"@babel/traverse@^7.17.12":
+  version "7.17.12"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.17.12.tgz#011874d2abbca0ccf1adbe38f6f7a4ff1747599c"
+  integrity sha512-zULPs+TbCvOkIFd4FrG53xrpxvCBwLIgo6tO0tJorY7YV2IWFxUfS/lXDJbGgfyYt9ery/Gxj2niwttNnB0gIw==
+  dependencies:
+    "@babel/code-frame" "^7.16.7"
+    "@babel/generator" "^7.17.12"
+    "@babel/helper-environment-visitor" "^7.16.7"
+    "@babel/helper-function-name" "^7.17.9"
+    "@babel/helper-hoist-variables" "^7.16.7"
+    "@babel/helper-split-export-declaration" "^7.16.7"
+    "@babel/parser" "^7.17.12"
+    "@babel/types" "^7.17.12"
+    debug "^4.1.0"
+    globals "^11.1.0"
+
 "@babel/types@^7.0.0", "@babel/types@^7.11.5", "@babel/types@^7.15.6", "@babel/types@^7.16.0", "@babel/types@^7.16.7", "@babel/types@^7.16.8", "@babel/types@^7.17.0", "@babel/types@^7.17.10", "@babel/types@^7.3.0", "@babel/types@^7.3.3", "@babel/types@^7.4.4":
   version "7.17.10"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.17.10.tgz#d35d7b4467e439fcf06d195f8100e0fea7fc82c4"
@@ -1056,6 +1121,14 @@
     "@babel/helper-validator-identifier" "^7.16.7"
     to-fast-properties "^2.0.0"
 
+"@babel/types@^7.17.12":
+  version "7.17.12"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.17.12.tgz#1210690a516489c0200f355d87619157fbbd69a0"
+  integrity sha512-rH8i29wcZ6x9xjzI5ILHL/yZkbQnCERdHlogKuIb4PUr7do4iT8DPekrTbBLWTnRQm6U0GYABbTMSzijmEqlAg==
+  dependencies:
+    "@babel/helper-validator-identifier" "^7.16.7"
+    to-fast-properties "^2.0.0"
+
 "@base2/pretty-print-object@1.0.0":
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/@base2/pretty-print-object/-/pretty-print-object-1.0.0.tgz#860ce718b0b73f4009e153541faff2cb6b85d047"
@@ -1974,6 +2047,15 @@
     "@jridgewell/set-array" "^1.0.0"
     "@jridgewell/sourcemap-codec" "^1.4.10"
 
+"@jridgewell/gen-mapping@^0.3.0":
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/@jridgewell/gen-mapping/-/gen-mapping-0.3.1.tgz#cf92a983c83466b8c0ce9124fadeaf09f7c66ea9"
+  integrity sha512-GcHwniMlA2z+WFPWuY8lp3fsza0I8xPFMWL5+n8LYyP6PSvPrXf4+n8stDHZY2DM0zy9sVkRDy1jDI4XGzYVqg==
+  dependencies:
+    "@jridgewell/set-array" "^1.0.0"
+    "@jridgewell/sourcemap-codec" "^1.4.10"
+    "@jridgewell/trace-mapping" "^0.3.9"
+
 "@jridgewell/resolve-uri@^3.0.3":
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/@jridgewell/resolve-uri/-/resolve-uri-3.0.6.tgz#4ac237f4dabc8dd93330386907b97591801f7352"
@@ -2149,6 +2231,11 @@
     "@nodelib/fs.scandir" "2.1.5"
     fastq "^1.6.0"
 
+"@nomiclabs/hardhat-ethers@^2.0.6":
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-ethers/-/hardhat-ethers-2.0.6.tgz#1c695263d5b46a375dcda48c248c4fba9dfe2fc2"
+  integrity sha512-q2Cjp20IB48rEn2NPjR1qxsIQBvFVYW9rFRCFq+bC4RUrn1Ljz3g4wM8uSlgIBZYBi2JMXxmOzFqHraczxq4Ng==
+
 "@npmcli/arborist@^5.0.0", "@npmcli/arborist@^5.0.4":
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/@npmcli/arborist/-/arborist-5.1.1.tgz#668dbf9ebf48ec0bbf19a5b4b19013e8c51f35b0"
@@ -6216,6 +6303,11 @@ dotenv@^14.2.0:
   resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-14.3.2.tgz#7c30b3a5f777c79a3429cb2db358eef6751e8369"
   integrity sha512-vwEppIphpFdvaMCaHfCEv9IgwcxMljMw2TnAQBB4VWPvzXQLTb82jwmdOKzlEVUL3gNFT4l4TPKO+Bn+sqcrVQ==
 
+dotenv@^16.0.1:
+  version "16.0.1"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-16.0.1.tgz#8f8f9d94876c35dac989876a5d3a82a267fdce1d"
+  integrity sha512-1K6hR6wtk2FviQ4kEiSjFiH5rpzEVi8WW0x96aztHVMhEspNpc4DVOUTEHtEva5VThQ8IaBX1Pe4gSzpVVUsKQ==
+
 dtrace-provider@~0.8:
   version "0.8.8"
   resolved "https://registry.yarnpkg.com/dtrace-provider/-/dtrace-provider-0.8.8.tgz#2996d5490c37e1347be263b423ed7b297fb0d97e"
@@ -7442,7 +7534,7 @@ glob-to-regexp@^0.4.1:
   resolved "https://registry.yarnpkg.com/glob-to-regexp/-/glob-to-regexp-0.4.1.tgz#c75297087c851b9a578bd217dd59a92f59fe546e"
   integrity sha512-lkX1HJXwyMcprw/5YUZc2s7DrpAiHB21/V+E1rHUrVNokkvB6bqMzT0VfV6/86ZNabt1k14YOIaT7nDvOX3Iiw==
 
-glob@7.2.0, glob@^7.1.1, glob@^7.1.2, glob@^7.1.3, glob@^7.1.4, glob@^7.1.6, glob@^7.1.7:
+glob@7.2.0, glob@^7.1.3, glob@^7.1.4, glob@^7.1.6, glob@^7.1.7:
   version "7.2.0"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.2.0.tgz#d15535af7732e02e948f4c41628bd910293f6023"
   integrity sha512-lmLf6gtyrPq8tTjSmrO94wBeQbFR3HbLHbuyD69wuyQkImp2hWqMGB47OX65FBkPffO641IP9jWa1z4ivqG26Q==
@@ -7465,6 +7557,18 @@ glob@^6.0.1:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+glob@^7.1.1, glob@^7.1.2:
+  version "7.2.3"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.2.3.tgz#b8df0fb802bbfa8e89bd1d938b4e16578ed44f2b"
+  integrity sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q==
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.1.1"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
 glob@^8.0.1:
   version "8.0.1"
   resolved "https://registry.yarnpkg.com/glob/-/glob-8.0.1.tgz#00308f5c035aa0b2a447cd37ead267ddff1577d3"
@@ -7557,10 +7661,10 @@ hardhat-watcher@^2.1.1:
   dependencies:
     chokidar "^3.4.3"
 
-hardhat@^2.9.3:
-  version "2.9.5"
-  resolved "https://registry.yarnpkg.com/hardhat/-/hardhat-2.9.5.tgz#6814a9f3afd5630ffe6bcb05a4367eb259c9222a"
-  integrity sha512-UIhjLQmccFOH87ODfFnVatI5vpwycsJ+D5+gmgOQNxUWp4c0ZenkeCE4yDEQ0tQm/zc/vz/mpskULz4aSFsPAg==
+hardhat@^2.9.6:
+  version "2.9.6"
+  resolved "https://registry.yarnpkg.com/hardhat/-/hardhat-2.9.6.tgz#9b75d8efccdfc20bdea35ffb0fd4e6a3f3ecf3cf"
+  integrity sha512-Vnm1iDfhbavNjvLxArt47rt6G3vPIV4Q/+pNgFkh6sfQH8JVf8px5VxiEs5cj4rPxmU+DXGKoalY+pK8fAL4oA==
   dependencies:
     "@ethereumjs/block" "^3.6.2"
     "@ethereumjs/blockchain" "^5.5.2"
@@ -7589,7 +7693,7 @@ hardhat@^2.9.3:
     find-up "^2.1.0"
     fp-ts "1.19.3"
     fs-extra "^7.0.1"
-    glob "^7.1.3"
+    glob "7.2.0"
     immutable "^4.0.0-rc.12"
     io-ts "1.10.4"
     lodash "^4.17.11"
@@ -8554,6 +8658,13 @@ jest-each@^27.5.1:
     jest-util "^27.5.1"
     pretty-format "^27.5.1"
 
+jest-environment-hardhat@^1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/jest-environment-hardhat/-/jest-environment-hardhat-1.1.4.tgz#f05491d8bc9f6850505fcb85ab342681b09637a6"
+  integrity sha512-vIYmH6rNcjrAsm86iicrn1uOHwbiQPFd1y1fmv2CaDLBwGWswl1smi5p+6/20VOkGvnOAi/CJFZ+QWjRDd7l2g==
+  dependencies:
+    setimmediate "^1.0.5"
+
 jest-environment-jsdom@^27.5.1:
   version "27.5.1"
   resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-27.5.1.tgz#ea9ccd1fc610209655a77898f86b2b559516a546"
@@ -9833,7 +9944,7 @@ minimalistic-crypto-utils@^1.0.1:
   resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
   integrity sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo=
 
-"minimatch@2 || 3", minimatch@^3.0.4, minimatch@^3.1.2:
+"minimatch@2 || 3", minimatch@^3.0.4, minimatch@^3.1.1, minimatch@^3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.1.2.tgz#19cd194bfd3e428f049a70817c038d89ab4be35b"
   integrity sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==