diff --git a/packages/gateway/README.md b/packages/gateway/README.md
index a546031279..92d7cdfe4a 100644
--- a/packages/gateway/README.md
+++ b/packages/gateway/README.md
@@ -32,6 +32,12 @@ One time set up of your cloudflare worker subdomain for dev:
 
 You only need to `npm start` for subsequent runs. PR your env config to the `wrangler.toml` to celebrate 🎉
 
-## API
+## High level architecture
 
-TODO
+![High level Architecture](./gateway.nft.storage.jpg)
+
+The IPFS gateway for nft.storage is not "another gateway", but a caching layer for NFT’s that sits on top of existing IPFS public gateways.
+
+## Persistence
+
+Several metrics per gateway are persisted to track the performance of each public gateway over time. Moreover, the list of gateways that have previously fetched successfully a given CID are also persisted.
diff --git a/packages/gateway/gateway.nft.storage.jpg b/packages/gateway/gateway.nft.storage.jpg
new file mode 100644
index 0000000000..d838c4a41c
Binary files /dev/null and b/packages/gateway/gateway.nft.storage.jpg differ
diff --git a/packages/gateway/package.json b/packages/gateway/package.json
index e0c86bb5bf..5fde78036c 100644
--- a/packages/gateway/package.json
+++ b/packages/gateway/package.json
@@ -10,12 +10,16 @@
     "dev": "miniflare --watch --debug",
     "deploy": "wrangler publish --env production",
     "pretest": "npm run build",
-    "test": "npm-run-all -p -r mock:ipfs.io test:worker",
+    "test": "npm-run-all -p -r mock:ipfs.io mock:cf-ipfs.com test:worker",
     "test:worker": "ava --verbose test/*.spec.js",
-    "mock:ipfs.io": "smoke -p 9081 test/mocks/ipfs.io"
+    "mock:ipfs.io": "smoke -p 9081 test/mocks/ipfs.io",
+    "mock:cf-ipfs.com": "smoke -p 9082 test/mocks/cf-ipfs.com"
   },
   "dependencies": {
+    "itty-router": "^2.4.5",
     "multiformats": "^9.5.2",
+    "p-any": "^4.0.0",
+    "p-settle": "^5.0.0",
     "toucan-js": "^2.5.0"
   },
   "devDependencies": {
@@ -25,6 +29,7 @@
     "git-rev-sync": "^3.0.1",
     "miniflare": "^2.0.0-rc.2",
     "npm-run-all": "^4.1.5",
+    "p-retry": "^5.0.0",
     "sade": "^1.7.4",
     "smoke": "^3.1.1"
   },
diff --git a/packages/gateway/src/constants.js b/packages/gateway/src/constants.js
new file mode 100644
index 0000000000..8833bced56
--- /dev/null
+++ b/packages/gateway/src/constants.js
@@ -0,0 +1 @@
+export const METRICS_CACHE_MAX_AGE = 10 * 60 // in seconds (10 minutes)
diff --git a/packages/gateway/src/cors.js b/packages/gateway/src/cors.js
index e957943eee..fe3831c0b1 100644
--- a/packages/gateway/src/cors.js
+++ b/packages/gateway/src/cors.js
@@ -1,5 +1,20 @@
 /* eslint-env serviceworker */
 
+/**
+ * @param {import('itty-router').RouteHandler} handler
+ * @returns {import('itty-router').RouteHandler}
+ */
+export function withCorsHeaders(handler) {
+  /**
+   * @param {Request} request
+   * @returns {Promise<Response>}
+   */
+  return async (request, ...rest) => {
+    const response = await handler(request, ...rest)
+    return addCorsHeaders(request, response)
+  }
+}
+
 /**
  * @param {Request} request
  * @param {Response} response
diff --git a/packages/gateway/src/durable-objects/cids.js b/packages/gateway/src/durable-objects/cids.js
new file mode 100644
index 0000000000..cda49e73ab
--- /dev/null
+++ b/packages/gateway/src/durable-objects/cids.js
@@ -0,0 +1,44 @@
+import { normalizeCid } from '../utils/cid.js'
+
+/**
+ * @typedef {Object} CidUpdateRequest
+ * @property {string} cid
+ * @property {string[]} urls gateway URLs
+ */
+
+/**
+ * Durable Object for tracking CIDs fetching state.
+ * For each CID requested, a list of the gateways that successfully fetched it are stored.
+ */
+export class CidsTracker0 {
+  constructor(state) {
+    this.state = state
+  }
+
+  // Handle HTTP requests from clients.
+  async fetch(request) {
+    // Apply requested action.
+    let url = new URL(request.url)
+
+    if (url.pathname === '/update') {
+      /** @type {CidUpdateRequest} */
+      const data = await request.json()
+
+      await this.state.storage.put(data.cid, data.urls)
+      return new Response()
+    } else if (url.pathname.includes('/status')) {
+      const cid = url.pathname.split('/status/')[1]
+      const nCid = normalizeCid(cid)
+
+      const stored = await this.state.storage.get(nCid)
+
+      if (stored) {
+        return new Response(JSON.stringify(stored))
+      }
+
+      return new Response('Not found', { status: 404 })
+    }
+
+    return new Response('Not found', { status: 404 })
+  }
+}
diff --git a/packages/gateway/src/durable-objects/metrics.js b/packages/gateway/src/durable-objects/metrics.js
new file mode 100644
index 0000000000..cec5b3fb89
--- /dev/null
+++ b/packages/gateway/src/durable-objects/metrics.js
@@ -0,0 +1,143 @@
+/**
+ * @typedef {Object} GatewayMetrics
+ * @property {number} totalRequests total number of performed requests
+ * @property {number} totalResponseTime total response time of the requests
+ * @property {number} totalFailedRequests total number of requests failed
+ * @property {number} totalWinnerRequests number of performed requests where faster
+ * @property {Record<string, number>} responseTimeHistogram
+ *
+ * @typedef {Object} ResponseStats
+ * @property {string} url gateway URL
+ * @property {boolean} ok request was successful
+ * @property {number} [responseTime] number of milliseconds to get response
+ * @property {boolean} [faster]
+ */
+
+// Key to track total time for fast gateway to respond
+const TOTAL_FAST_RESPONSE_TIME = 'totalFastResponseTime'
+
+/**
+ * Durable Object for keeping Metrics state.
+ */
+export class Metrics13 {
+  constructor(state, env) {
+    this.state = state
+    /** @type {Array<string>} */
+    this.ipfsGateways = JSON.parse(env.IPFS_GATEWAYS)
+
+    // `blockConcurrencyWhile()` ensures no requests are delivered until initialization completes.
+    this.state.blockConcurrencyWhile(async () => {
+      // Get state and initialize if not existing
+      /** @type {Map<string, GatewayMetrics>} */
+      this.gatewayMetrics = new Map()
+
+      // Gateway related metrics
+      const storedMetricsPerGw = await Promise.all(
+        this.ipfsGateways.map(async (gw) => {
+          /** @type {GatewayMetrics} */
+          const value =
+            (await this.state.storage.get(gw)) || createMetricsTracker()
+
+          return {
+            gw,
+            value: { ...value },
+          }
+        })
+      )
+
+      storedMetricsPerGw.forEach(({ gw, value }) => {
+        this.gatewayMetrics.set(gw, value)
+      })
+
+      // Total response time
+      this.totalFastResponseTime =
+        (await this.state.storage.get(TOTAL_FAST_RESPONSE_TIME)) || 0
+    })
+  }
+
+  // Handle HTTP requests from clients.
+  async fetch(request) {
+    // Apply requested action.
+    let url = new URL(request.url)
+    switch (url.pathname) {
+      case '/update':
+        const data = await request.json()
+        // Updated Metrics
+        this._updateMetrics(data)
+        // Save updated Metrics
+        await Promise.all([
+          ...this.ipfsGateways.map((gw) =>
+            this.state.storage.put(gw, this.gatewayMetrics.get(gw))
+          ),
+          this.state.storage.put(
+            TOTAL_FAST_RESPONSE_TIME,
+            this.totalFastResponseTime
+          ),
+        ])
+        return new Response()
+      case '/metrics':
+        const resp = {
+          totalFastResponseTime: this.totalFastResponseTime,
+          ipfsGateways: {},
+        }
+        this.ipfsGateways.forEach((url) => {
+          resp.ipfsGateways[url] = this.gatewayMetrics.get(url)
+        })
+
+        return new Response(JSON.stringify(resp))
+      default:
+        return new Response('Not found', { status: 404 })
+    }
+  }
+
+  /**
+   * @param {ResponseStats[]} responseStats
+   */
+  _updateMetrics(responseStats) {
+    responseStats.forEach((stats) => {
+      const gwMetrics = this.gatewayMetrics.get(stats.url)
+
+      if (!stats.ok) {
+        // Update request count
+        gwMetrics.totalRequests += 1
+        gwMetrics.totalFailedRequests += 1
+        return
+      }
+
+      // Update request count and response time sum
+      gwMetrics.totalRequests += 1
+      gwMetrics.totalResponseTime += stats.responseTime
+
+      // Update faster count if appropriate
+      if (stats.faster) {
+        gwMetrics.totalWinnerRequests += 1
+        this.totalFastResponseTime += stats.responseTime
+      }
+
+      // Update histogram
+      const gwHistogram = {
+        ...gwMetrics.responseTimeHistogram,
+      }
+
+      const histogramCandidate =
+        histogram.find((h) => stats.responseTime <= h) ||
+        histogram[histogram.length - 1]
+      gwHistogram[histogramCandidate] += 1
+      gwMetrics.responseTimeHistogram = gwHistogram
+    })
+  }
+}
+
+export const histogram = [300, 500, 750, 1000, 1500, 2000, 3000, 5000, 10000]
+
+function createMetricsTracker() {
+  const h = histogram.map((h) => [h, 0])
+
+  return {
+    totalRequests: 0,
+    totalResponseTime: 0,
+    totalFailedRequests: 0,
+    totalWinnerRequests: 0,
+    responseTimeHistogram: Object.fromEntries(h),
+  }
+}
diff --git a/packages/gateway/src/env.js b/packages/gateway/src/env.js
new file mode 100644
index 0000000000..40d8646c1e
--- /dev/null
+++ b/packages/gateway/src/env.js
@@ -0,0 +1,61 @@
+import Toucan from 'toucan-js'
+import pkg from '../package.json'
+
+// TODO: Get Durable object typedef
+/**
+ * @typedef {Object} EnvInput
+ * @property {string} IPFS_GATEWAYS
+ * @property {string} VERSION
+ * @property {string} ENV
+ * @property {string} [SENTRY_DSN]
+ * @property {number} [REQUEST_TIMEOUT]
+ * @property {Object} METRICS
+ * @property {Object} CIDSTRACKER
+ *
+ * @typedef {Object} EnvTransformed
+ * @property {Array<string>} ipfsGateways
+ * @property {Object} metricsDurable
+ * @property {Object} cidsTrackerDurable
+ * @property {number} REQUEST_TIMEOUT
+ * @property {Toucan} [sentry]
+ *
+ * @typedef {EnvInput & EnvTransformed} Env
+ */
+
+/**
+ * @param {Request} request
+ * @param {Env} env
+ */
+export function envAll(request, env) {
+  env.sentry = getSentry(request, env)
+  env.ipfsGateways = JSON.parse(env.IPFS_GATEWAYS)
+  env.metricsDurable = env.METRICS
+  env.cidsTrackerDurable = env.CIDSTRACKER
+  env.REQUEST_TIMEOUT = env.REQUEST_TIMEOUT || 20000
+}
+
+/**
+ * Get sentry instance if configured
+ *
+ * @param {Request} request
+ * @param {Env} env
+ */
+function getSentry(request, env) {
+  if (!env.SENTRY_DSN) {
+    return
+  }
+
+  return new Toucan({
+    request,
+    dsn: env.SENTRY_DSN,
+    allowedHeaders: ['user-agent'],
+    allowedSearchParams: /(.*)/,
+    debug: false,
+    environment: env.ENV || 'dev',
+    rewriteFrames: {
+      root: '/',
+    },
+    release: env.VERSION,
+    pkg,
+  })
+}
diff --git a/packages/gateway/src/error-handler.js b/packages/gateway/src/error-handler.js
index 14386ba3b7..1756b97caa 100644
--- a/packages/gateway/src/error-handler.js
+++ b/packages/gateway/src/error-handler.js
@@ -1,46 +1,15 @@
-import Toucan from 'toucan-js'
-import pkg from '../package.json'
-
 /**
  * @param {Error & {status?: number;code?: string;}} err
- * @param {Request} request
- * @param {import('./index').Env} env
+ * @param {import('./env').Env} env
  */
-export function errorHandler(err, request, env) {
+export function errorHandler(err, env) {
   console.error(err.stack)
 
   const status = err.status || 500
 
-  const sentry = getSentry(request, env)
-  if (sentry && status >= 500) {
-    sentry.captureException(err)
+  if (env.sentry && status >= 500) {
+    env.sentry.captureException(err)
   }
 
   return new Response(err.message || 'Server Error', { status })
 }
-
-/**
- * Get sentry instance if configured
- *
- * @param {Request} request
- * @param {import('./index').Env} env
- */
-function getSentry(request, env) {
-  if (!env.SENTRY_DSN) {
-    return
-  }
-
-  return new Toucan({
-    request,
-    dsn: env.SENTRY_DSN,
-    allowedHeaders: ['user-agent', 'x-client'],
-    allowedSearchParams: /(.*)/,
-    debug: false,
-    environment: env.ENV || 'dev',
-    rewriteFrames: {
-      root: '/',
-    },
-    release: env.VERSION,
-    pkg,
-  })
-}
diff --git a/packages/gateway/src/gateway.js b/packages/gateway/src/gateway.js
new file mode 100644
index 0000000000..85082ffe58
--- /dev/null
+++ b/packages/gateway/src/gateway.js
@@ -0,0 +1,145 @@
+/* eslint-env serviceworker, browser */
+
+import pAny from 'p-any'
+import pSettle from 'p-settle'
+
+import { getCidFromSubdomainUrl } from './utils/cid.js'
+
+const METRICS_ID = 'metrics'
+const CIDS_TRACKER_ID = 'cids'
+
+/**
+ * @typedef {Object} GatewayResponse
+ * @property {Response} response
+ * @property {string} url
+ * @property {number} responseTime
+ */
+
+/**
+ * Handle gateway request
+ *
+ * @param {Request} request
+ * @param {import('./env').Env} env
+ * @param {import('./index').Ctx} ctx
+ */
+export async function gatewayGet(request, env, ctx) {
+  const reqUrl = new URL(request.url)
+  const cid = getCidFromSubdomainUrl(reqUrl)
+
+  const gatewayReqs = env.ipfsGateways.map(async (url, index) => {
+    const ipfsUrl = new URL('ipfs', url)
+    const controller = new AbortController()
+    const startTs = Date.now()
+    const timer = setTimeout(() => controller.abort(), env.REQUEST_TIMEOUT)
+
+    let response
+    try {
+      response = await fetch(
+        `${ipfsUrl.toString()}/${cid}${reqUrl.pathname || ''}`,
+        { signal: controller.signal }
+      )
+    } finally {
+      clearTimeout(timer)
+    }
+
+    /** @type {GatewayResponse} */
+    const gwResponse = {
+      response,
+      url,
+      responseTime: Date.now() - startTs,
+    }
+    return gwResponse
+  })
+
+  try {
+    const { response, url } = await pAny(gatewayReqs)
+
+    ctx.waitUntil(
+      (async () => {
+        const responses = await pSettle(gatewayReqs)
+        const successFullResponses = responses.filter(
+          (r) => r.value?.response?.ok
+        )
+
+        await Promise.all([
+          updateMetrics(request, env, responses, url),
+          updateCidsTracker(request, env, successFullResponses, cid),
+        ])
+      })()
+    )
+
+    // forward gateway response
+    return response
+  } catch (err) {
+    ctx.waitUntil(
+      (async () => {
+        // Update metrics as all requests failed
+        const responses = await pSettle(gatewayReqs)
+        await updateMetrics(request, env, responses)
+      })()
+    )
+
+    throw err
+  }
+}
+
+/**
+ * @param {Request} request
+ * @param {import('./env').Env} env
+ * @param {pSettle.PromiseResult<GatewayResponse>[]} responses
+ * @param {string} [fasterUrl]
+ */
+async function updateMetrics(request, env, responses, fasterUrl) {
+  const id = env.metricsDurable.idFromName(METRICS_ID)
+  const stub = env.metricsDurable.get(id)
+
+  /** @type {import('./durable-objects/metrics').ResponseStats[]} */
+  const responseStats = responses.map((r) => ({
+    ok: r?.value?.response?.ok,
+    url: r?.value?.url,
+    responseTime: r?.value?.responseTime,
+    faster: fasterUrl === r?.value?.url,
+  }))
+
+  await stub.fetch(_getUpdateRequestUrl(request, responseStats))
+}
+
+/**
+ * @param {Request} request
+ * @param {import('./env').Env} env
+ * @param {pSettle.PromiseResult<GatewayResponse>[]} responses
+ * @param {string} cid
+ */
+async function updateCidsTracker(request, env, responses, cid) {
+  const id = env.cidsTrackerDurable.idFromName(CIDS_TRACKER_ID)
+  const stub = env.cidsTrackerDurable.get(id)
+
+  /** @type {import('./durable-objects/cids').CidUpdateRequest} */
+  const updateRequest = {
+    cid,
+    urls: responses.filter((r) => r.isFulfilled).map((r) => r?.value?.url),
+  }
+
+  await stub.fetch(_getUpdateRequestUrl(request, updateRequest))
+}
+
+/**
+ * Get a Request to update a durable object
+ *
+ * @param {Request} request
+ * @param {Object} data
+ */
+function _getUpdateRequestUrl(request, data) {
+  const reqUrl = new URL(
+    'update',
+    request.url.startsWith('http') ? request.url : `http://${request.url}`
+  )
+  const headers = new Headers()
+  headers.append('Content-Type', 'application/json')
+
+  return new Request(reqUrl.toString(), {
+    headers,
+    method: 'PUT',
+    body: JSON.stringify(data),
+  })
+}
diff --git a/packages/gateway/src/index.js b/packages/gateway/src/index.js
index 7c61bd1e42..9d788f4d94 100644
--- a/packages/gateway/src/index.js
+++ b/packages/gateway/src/index.js
@@ -1,45 +1,41 @@
-import { addCorsHeaders } from './cors.js'
+/* eslint-env serviceworker */
+
+import { Router } from 'itty-router'
+
+import { gatewayGet } from './gateway.js'
+import { metricsGet } from './metrics.js'
+
+// Export Durable Object namespace from the root module.
+export { Metrics13 } from './durable-objects/metrics.js'
+export { CidsTracker0 } from './durable-objects/cids.js'
+
+import { addCorsHeaders, withCorsHeaders } from './cors.js'
 import { errorHandler } from './error-handler.js'
-import { getCidFromSubdomainUrl } from './utils/cid.js'
+import { envAll } from './env.js'
 
-/**
- * @typedef {Object} Env
- * @property {string} IPFS_GATEWAY
- * @property {string} VERSION
- * @property {string} ENV
- * @property {string} [SENTRY_DSN]
- */
+const router = Router()
 
-/**
- * Handle gateway request
- * @param {Request} request
- * @param {Env} env
- */
-async function handleRequest(request, env) {
-  const publicGatewayUrl = new URL('ipfs', env.IPFS_GATEWAY)
-  const url = new URL(request.url)
-  const cid = getCidFromSubdomainUrl(url)
-  const response = await fetch(
-    `${publicGatewayUrl}/${cid}${url.pathname || ''}`
-  )
-
-  // forward gateway response
-  return addCorsHeaders(request, response)
-}
+router
+  .all('*', envAll)
+  .get('/metrics', withCorsHeaders(metricsGet))
+  .get('*', withCorsHeaders(gatewayGet))
 
 /**
  * @param {Error} error
  * @param {Request} request
- * @param {Env} env
+ * @param {import('./env').Env} env
  */
 function serverError(error, request, env) {
-  return addCorsHeaders(request, errorHandler(error, request, env))
+  return addCorsHeaders(request, errorHandler(error, env))
 }
 
+// https://developer.mozilla.org/en-US/docs/Web/API/FetchEvent
+/** @typedef {{ waitUntil(p: Promise): void }} Ctx */
+
 export default {
-  async fetch(request, env) {
+  async fetch(request, env, ctx) {
     try {
-      return await handleRequest(request, env)
+      return await router.handle(request, env, ctx)
     } catch (error) {
       return serverError(error, request, env)
     }
diff --git a/packages/gateway/src/metrics.js b/packages/gateway/src/metrics.js
new file mode 100644
index 0000000000..5fdf67abee
--- /dev/null
+++ b/packages/gateway/src/metrics.js
@@ -0,0 +1,99 @@
+/* global Response caches */
+
+import { METRICS_CACHE_MAX_AGE } from './constants.js'
+import { histogram } from './durable-objects/metrics.js'
+
+/**
+ * @typedef MetricsDurable
+ * @property {number} totalFastResponseTime
+ * @property {Record<string,import('./durable-objects/metrics').GatewayMetrics>} ipfsGateways
+ */
+
+/**
+ * Retrieve metrics in prometheus exposition format.
+ * https://prometheus.io/docs/instrumenting/exposition_formats/
+ * @param {Request} request
+ * @param {import('./env').Env} env
+ * @param {import('./index').Ctx} ctx
+ * @returns {Promise<Response>}
+ */
+export async function metricsGet(request, env, ctx) {
+  // TODO: Set cache
+  // const cache = caches.default
+  // let res = await cache.match(request)
+
+  // if (res) {
+  //   return res
+  // }
+  let res
+
+  const id = env.metricsDurable.idFromName('metrics')
+  const stub = env.metricsDurable.get(id)
+
+  const stubResponse = await stub.fetch(request)
+  /** @type {MetricsDurable} */
+  const metricsDurable = await stubResponse.json()
+
+  const metrics = [
+    `# HELP nftstorage_gateway_total_response_time Average response time.`,
+    `# TYPE nftstorage_gateway_total_response_time gauge`,
+    ...env.ipfsGateways.map(
+      (gw) =>
+        `nftstorage_gateway_total_response_time{gateway="${gw}",env="${
+          env.ENV
+        }"} ${metricsDurable.ipfsGateways[gw].totalResponseTime || 0}`
+    ),
+    `# HELP nftstorage_gateway_total_fastest_response_time Total requests performed.`,
+    `# TYPE nftstorage_gateway_total_fastest_response_time counter`,
+    `nftstorage_gateway_total_fastest_response_time{env="${env.ENV}"} ${metricsDurable.totalFastResponseTime}`,
+    `# HELP nftstorage_gateway_total_requests Total requests performed.`,
+    `# TYPE nftstorage_gateway_total_requests counter`,
+    ...env.ipfsGateways.map(
+      (gw) =>
+        `nftstorage_gateway_total_requests{gateway="${gw}",env="${env.ENV}"} ${metricsDurable.ipfsGateways[gw].totalRequests}`
+    ),
+    `# HELP nftstorage_gateway_total_successful_requests Total successful requests.`,
+    `# TYPE nftstorage_gateway_total_successful_requests counter`,
+    ...env.ipfsGateways.map(
+      (gw) =>
+        `nftstorage_gateway_total_successful_requests{gateway="${gw}",env="${
+          env.ENV
+        }"} ${
+          metricsDurable.ipfsGateways[gw].totalRequests -
+          metricsDurable.ipfsGateways[gw].totalFailedRequests
+        }`
+    ),
+    `# HELP nftstorage_gateway_total_failed_requests Total failed requests.`,
+    `# TYPE nftstorage_gateway_total_failed_requests counter`,
+    ...env.ipfsGateways.map(
+      (gw) =>
+        `nftstorage_gateway_total_failed_requests{gateway="${gw}",env="${env.ENV}"} ${metricsDurable.ipfsGateways[gw].totalFailedRequests}`
+    ),
+    `# HELP nftstorage_gateway_total_faster_requests Total requests with faster response.`,
+    `# TYPE nftstorage_gateway_total_faster_requests counter`,
+    ...env.ipfsGateways.map(
+      (gw) =>
+        `nftstorage_gateway_total_faster_requests{gateway="${gw}",env="${env.ENV}"} ${metricsDurable.ipfsGateways[gw].totalWinnerRequests}`
+    ),
+    `# HELP nftstorage_gateway_requests_per_time`,
+    `# TYPE nftstorage_gateway_requests_per_time histogram`,
+    ...histogram.map((t) => {
+      return env.ipfsGateways
+        .map(
+          (gw) =>
+            `nftstorage_gateway_requests_per_time{gateway="${gw}",le="${t}",env="${env.ENV}"} ${metricsDurable.ipfsGateways[gw].responseTimeHistogram[t]}`
+        )
+        .join('\n')
+    }),
+  ].join('\n')
+
+  res = new Response(metrics, {
+    headers: {
+      'Cache-Control': `public, max-age=${METRICS_CACHE_MAX_AGE}`,
+    },
+  })
+
+  // ctx.waitUntil(cache.put(request, res.clone()))
+
+  return res
+}
diff --git a/packages/gateway/test/cids.spec.js b/packages/gateway/test/cids.spec.js
new file mode 100644
index 0000000000..99d5a3e0a5
--- /dev/null
+++ b/packages/gateway/test/cids.spec.js
@@ -0,0 +1,51 @@
+import test from 'ava'
+
+import { gateways } from './constants.js'
+import { getMiniflare, getCIDsTracker } from './utils.js'
+
+test.beforeEach((t) => {
+  // Create a new Miniflare environment for each test
+  t.context = {
+    mf: getMiniflare(),
+  }
+})
+
+test('Sets gateways that resolved cid', async (t) => {
+  const { mf } = t.context
+  const cid = 'bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapoupoq'
+
+  const p = await mf.dispatchFetch(`http://${cid}.ipfs.localhost:8787`)
+  await p.waitUntil()
+
+  const ns = await mf.getDurableObjectNamespace(getCIDsTracker())
+  const id = ns.idFromName('cids')
+  const stub = ns.get(id)
+  const doRes = await stub.fetch(`http://localhost:8787/status/${cid}`)
+
+  const gatewaysWithCid = await doRes.json()
+
+  t.truthy(gateways.length === gatewaysWithCid.length)
+  gatewaysWithCid.forEach((gw) => {
+    t.truthy(gateways.includes(gw))
+  })
+})
+
+test('Only sets gateways that resolved cid successfully', async (t) => {
+  const { mf } = t.context
+  const cid = 'bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapopppq'
+
+  // gateways[1] fails
+  const p = await mf.dispatchFetch(`http://${cid}.ipfs.localhost:8787`)
+  await p.waitUntil()
+
+  const ns = await mf.getDurableObjectNamespace(getCIDsTracker())
+  const id = ns.idFromName('cids')
+  const stub = ns.get(id)
+  const doRes = await stub.fetch(`http://localhost:8787/status/${cid}`)
+
+  const gatewaysWithCid = await doRes.json()
+
+  t.falsy(gateways.length === gatewaysWithCid.length)
+  t.truthy(gatewaysWithCid.includes(gateways[0]))
+  t.falsy(gatewaysWithCid.includes(gateways[1]))
+})
diff --git a/packages/gateway/test/constants.js b/packages/gateway/test/constants.js
new file mode 100644
index 0000000000..ba54fbe743
--- /dev/null
+++ b/packages/gateway/test/constants.js
@@ -0,0 +1 @@
+export const gateways = ['http://localhost:9081', 'http://localhost:9082']
diff --git a/packages/gateway/test/index.spec.js b/packages/gateway/test/index.spec.js
index 792566cf51..6bc54f7875 100644
--- a/packages/gateway/test/index.spec.js
+++ b/packages/gateway/test/index.spec.js
@@ -1,23 +1,11 @@
 import test from 'ava'
-import { Miniflare } from 'miniflare'
+
+import { getMiniflare } from './utils.js'
 
 test.beforeEach((t) => {
   // Create a new Miniflare environment for each test
-  const mf = new Miniflare({
-    // Autoload configuration from `.env`, `package.json` and `wrangler.toml`
-    envPath: true,
-    packagePath: true,
-    wranglerConfigPath: true,
-    // We don't want to rebuild our worker for each test, we're already doing
-    // it once before we run all tests in package.json, so disable it here.
-    // This will override the option in wrangler.toml.
-    buildCommand: undefined,
-    wranglerConfigEnv: 'test',
-    modules: true,
-  })
-
   t.context = {
-    mf,
+    mf: getMiniflare(),
   }
 })
 
@@ -38,16 +26,16 @@ test('Gets content', async (t) => {
   const { mf } = t.context
 
   const response = await mf.dispatchFetch(
-    'https://bafkreidchi5c4c3kwr5rpkvvwnjz3lh44xi2y2lnbldehwmpplgynigidm.ipfs.localhost:8787'
+    'https://bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapoupoq.ipfs.localhost:8787'
   )
-  t.is(await response.text(), 'Hello gateway.nft.storage!')
+  t.is(await response.text(), 'Hello nft.storage! 😎')
 })
 
 test('Gets content with path', async (t) => {
   const { mf } = t.context
 
   const response = await mf.dispatchFetch(
-    'https://bafkreidchi5c4c3kwr5rpkvvwnjz3lh44xi2y2lnbldehwmpplgynigidm.ipfs.localhost:8787/path'
+    'https://bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapoupoq.ipfs.localhost:8787/path'
   )
   t.is(await response.text(), 'Hello gateway.nft.storage resource!')
 })
diff --git a/packages/gateway/test/metrics.spec.js b/packages/gateway/test/metrics.spec.js
new file mode 100644
index 0000000000..7ebc6b70e5
--- /dev/null
+++ b/packages/gateway/test/metrics.spec.js
@@ -0,0 +1,152 @@
+import test from 'ava'
+
+import { gateways } from './constants.js'
+import { getMiniflare } from './utils.js'
+
+test.beforeEach((t) => {
+  // Create a new Miniflare environment for each test
+  t.context = {
+    mf: getMiniflare(),
+  }
+})
+
+test('Gets Metrics content when empty state', async (t) => {
+  const { mf } = t.context
+
+  const response = await mf.dispatchFetch('http://localhost:8787/metrics')
+  const metricsResponse = await response.text()
+
+  t.is(
+    metricsResponse.includes('nftstorage_gateway_total_fastest_response_time'),
+    true
+  )
+  gateways.forEach((gw) => {
+    t.is(
+      metricsResponse.includes(`_total_requests{gateway="${gw}",env="test"} 0`),
+      true
+    )
+    t.is(
+      metricsResponse.includes(
+        `_total_response_time{gateway="${gw}",env="test"}`
+      ),
+      true
+    )
+    t.is(
+      metricsResponse.includes(
+        `_total_failed_requests{gateway="${gw}",env="test"} 0`
+      ),
+      true
+    )
+    t.is(
+      metricsResponse.includes(
+        `_total_faster_requests{gateway="${gw}",env="test"} 0`
+      ),
+      true
+    )
+    t.is(
+      metricsResponse.includes(`_requests_per_time{gateway="${gw}",le=`),
+      true
+    )
+  })
+})
+
+test('Gets Metrics content', async (t) => {
+  const { mf } = t.context
+
+  // Trigger two requests
+  const p = await Promise.all([
+    mf.dispatchFetch(
+      'http://bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapoupoq.ipfs.localhost:8787'
+    ),
+    mf.dispatchFetch(
+      'http://bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapoupoq.ipfs.localhost:8787'
+    ),
+  ])
+
+  // Wait for waitUntil
+  await Promise.all(p.map((p) => p.waitUntil()))
+
+  const response = await mf.dispatchFetch('http://localhost:8787/metrics')
+  const metricsResponse = await response.text()
+
+  gateways.forEach((gw) => {
+    t.is(
+      metricsResponse.includes(`_total_requests{gateway="${gw}",env="test"} 2`),
+      true
+    )
+  })
+})
+
+test('Gets Metrics from faster gateway', async (t) => {
+  const { mf } = t.context
+
+  // Trigger two requests for a CID where gateways[0] is faster
+  const p = await Promise.all([
+    mf.dispatchFetch(
+      'http://bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapouppq.ipfs.localhost:8787'
+    ),
+    mf.dispatchFetch(
+      'http://bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapouppq.ipfs.localhost:8787'
+    ),
+  ])
+
+  // Wait for waitUntil
+  await Promise.all(p.map((p) => p.waitUntil()))
+
+  const response = await mf.dispatchFetch('http://localhost:8787/metrics')
+  const metricsResponse = await response.text()
+
+  gateways.forEach((gw) => {
+    t.is(
+      metricsResponse.includes(`_total_requests{gateway="${gw}",env="test"} 2`),
+      true
+    )
+  })
+
+  // gateways[0] is always faster
+  t.is(
+    metricsResponse.includes(
+      `_total_faster_requests{gateway="${gateways[0]}",env="test"} 2`
+    ),
+    true
+  )
+  t.is(
+    metricsResponse.includes(
+      `_total_faster_requests{gateway="${gateways[1]}",env="test"} 0`
+    ),
+    true
+  )
+})
+
+test('Counts failures', async (t) => {
+  const { mf } = t.context
+
+  // Trigger two requests for a CID where gateways[1] fails
+  const p = await Promise.all([
+    mf.dispatchFetch(
+      'http://bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapopppq.ipfs.localhost:8787'
+    ),
+    mf.dispatchFetch(
+      'http://bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapopppq.ipfs.localhost:8787'
+    ),
+  ])
+
+  // Wait for waitUntil
+  await Promise.all(p.map((p) => p.waitUntil()))
+
+  const response = await mf.dispatchFetch('http://localhost:8787/metrics')
+  const metricsResponse = await response.text()
+
+  t.is(
+    metricsResponse.includes(
+      `_total_requests{gateway="${gateways[1]}",env="test"} 2`
+    ),
+    true
+  )
+  t.is(
+    metricsResponse.includes(
+      `_total_failed_requests{gateway="${gateways[1]}",env="test"} 2`
+    ),
+    true
+  )
+})
diff --git a/packages/gateway/test/mocks/cf-ipfs.com/get_ipfs#@cid#path.js b/packages/gateway/test/mocks/cf-ipfs.com/get_ipfs#@cid#path.js
new file mode 100644
index 0000000000..b72f5bd93c
--- /dev/null
+++ b/packages/gateway/test/mocks/cf-ipfs.com/get_ipfs#@cid#path.js
@@ -0,0 +1,10 @@
+/**
+ * https://github.com/sinedied/smoke#javascript-mocks
+ */
+module.exports = () => {
+  return {
+    statusCode: 200,
+    headers: { 'Content-Type': 'text/plain' },
+    body: 'Hello gateway.nft.storage resource!',
+  }
+}
diff --git a/packages/gateway/test/mocks/cf-ipfs.com/get_ipfs#@cid.js b/packages/gateway/test/mocks/cf-ipfs.com/get_ipfs#@cid.js
new file mode 100644
index 0000000000..1d292cfae7
--- /dev/null
+++ b/packages/gateway/test/mocks/cf-ipfs.com/get_ipfs#@cid.js
@@ -0,0 +1,32 @@
+/**
+ * https://github.com/sinedied/smoke#javascript-mocks
+ */
+module.exports = async ({ params }) => {
+  const cid = params.cid
+
+  if (cid === 'bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapoupoq') {
+    return {
+      statusCode: 200,
+      headers: { 'Content-Type': 'text/plain' },
+      body: 'Hello nft.storage! 😎',
+    }
+  } else if (
+    cid === 'bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapouppq'
+  ) {
+    // Delays 300ms
+    await new Promise((resolve) => setTimeout(resolve, 300))
+    return {
+      statusCode: 200,
+      headers: { 'Content-Type': 'text/plain' },
+      body: 'Hello nft.storage! 😎👻',
+    }
+  }
+
+  return {
+    statusCode: 524,
+    headers: { 'Content-Type': 'text/plain' },
+    body: {
+      error: 'A timeout occurred',
+    },
+  }
+}
diff --git a/packages/gateway/test/mocks/ipfs.io/get_ipfs#@cid.js b/packages/gateway/test/mocks/ipfs.io/get_ipfs#@cid.js
index 244f1fa368..d5807eb30d 100644
--- a/packages/gateway/test/mocks/ipfs.io/get_ipfs#@cid.js
+++ b/packages/gateway/test/mocks/ipfs.io/get_ipfs#@cid.js
@@ -1,10 +1,26 @@
 /**
  * https://github.com/sinedied/smoke#javascript-mocks
  */
-module.exports = () => {
+module.exports = async ({ params }) => {
+  const cid = params.cid
+
+  if (cid === 'bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapoupoq') {
+    return {
+      statusCode: 200,
+      headers: { 'Content-Type': 'text/plain' },
+      body: 'Hello nft.storage! 😎',
+    }
+  } else if (
+    cid === 'bafkreidyeivj7adnnac6ljvzj2e3rd5xdw3revw4da7mx2ckrstapouppq'
+  ) {
+    return {
+      statusCode: 200,
+      headers: { 'Content-Type': 'text/plain' },
+      body: 'Hello nft.storage! 😎👻',
+    }
+  }
   return {
-    statusCode: 200,
+    statusCode: 500,
     headers: { 'Content-Type': 'text/plain' },
-    body: 'Hello gateway.nft.storage!',
   }
 }
diff --git a/packages/gateway/test/utils.js b/packages/gateway/test/utils.js
new file mode 100644
index 0000000000..b4db71c6b0
--- /dev/null
+++ b/packages/gateway/test/utils.js
@@ -0,0 +1,24 @@
+import { Miniflare } from 'miniflare'
+
+export function getMiniflare() {
+  return new Miniflare({
+    // Autoload configuration from `.env`, `package.json` and `wrangler.toml`
+    envPath: true,
+    packagePath: true,
+    wranglerConfigPath: true,
+    // We don't want to rebuild our worker for each test, we're already doing
+    // it once before we run all tests in package.json, so disable it here.
+    // This will override the option in wrangler.toml.
+    buildCommand: undefined,
+    wranglerConfigEnv: 'test',
+    modules: true,
+    durableObjects: {
+      METRICS: 'Metrics13',
+      CIDSTRACKER: 'CidsTracker0',
+    },
+  })
+}
+
+export function getCIDsTracker() {
+  return 'CIDSTRACKER'
+}
diff --git a/packages/gateway/wrangler.toml b/packages/gateway/wrangler.toml
index 7e9a1e23b0..6c80321791 100644
--- a/packages/gateway/wrangler.toml
+++ b/packages/gateway/wrangler.toml
@@ -16,26 +16,88 @@ format = "modules"
 dir = "dist"
 main = "index.mjs"
 
+[durable_objects]
+bindings = [{name = "METRICS", class_name = "Metrics13"}, {name = "CIDSTRACKER", class_name = "CidsTracker0"}]
+
 # PROD!
 [env.production]
 # name = "gateway-nft-storage-production"
 account_id = "fffa4b4363a7e5250af8357087263b3a" # Protocol Labs CF account
 zone_id = "fc6cb51dbc2d0b9a729eae6a302a49c9"    # nft.storage zone
 route = "*gateway.nft.storage/*"
-vars = { IPFS_GATEWAY = "https://ipfs.io" }
+vars = { IPFS_GATEWAYS = "[\"https://ipfs.io\", \"https://cf-ipfs.com\", \"https://nft-storage.mypinata.cloud/\"]", ENV = "production" }
 
 [env.staging]
 # name = "gateway-nft-storage-staging"
 account_id = "fffa4b4363a7e5250af8357087263b3a" # Protocol Labs CF account
 zone_id = "fc6cb51dbc2d0b9a729eae6a302a49c9"    # nft.storage zone
 route = "*gateway-staging.nft.storage/*"
-vars = { IPFS_GATEWAY = "https://ipfs.io" }
+vars = { IPFS_GATEWAYS = "[\"https://ipfs.io\", \"https://cf-ipfs.com\", \"https://nft-storage.mypinata.cloud/\"]", ENV = "staging" }
+
+[env.staging.durable_objects]
+bindings = [{name = "METRICS", class_name = "Metrics13"}, {name = "CIDSTRACKER", class_name = "CidsTracker0"}]
 
 [env.test]
 workers_dev = true
-vars = { IPFS_GATEWAY = "http://localhost:9081" }
+vars = { IPFS_GATEWAYS = "[\"http://localhost:9081\", \"http://localhost:9082\"]", ENV = "test" }
+
+[env.test.durable_objects]
+bindings = [{name = "METRICS", class_name = "Metrics13"}, {name = "CIDSTRACKER", class_name = "CidsTracker0"}]
 
 [env.vsantos]
 workers_dev = true
 account_id = "7ec0b7cf2ec201b2580374e53ba5f37b"
-vars = { IPFS_GATEWAY = "https://ipfs.io" }
+vars = { IPFS_GATEWAYS = "[\"https://ipfs.io\"]" }
+
+[env.vsantos.durable_objects]
+bindings = [{name = "METRICS", class_name = "Metrics13"}, {name = "CIDSTRACKER", class_name = "CidsTracker0"}]
+
+[[migrations]]
+tag = "v1" # Should be unique for each entry
+new_classes = ["Metrics"]
+[[migrations]]
+tag = "v2" # Should be unique for each entry
+new_classes = ["Metrics2"]
+[[migrations]]
+tag = "v3" # Should be unique for each entry
+new_classes = ["Metrics3"]
+[[migrations]]
+tag = "v4" # Should be unique for each entry
+new_classes = ["Metrics4"]
+deleted_classes = ["Metrics", "Metrics2", "Metrics3"]
+[[migrations]]
+tag = "v5" # Should be unique for each entry
+new_classes = ["Metrics5"]
+deleted_classes = ["Metrics4"]
+[[migrations]]
+tag = "v6" # Should be unique for each entry
+new_classes = ["Metrics6"]
+deleted_classes = ["Metrics5"]
+[[migrations]]
+tag = "v7" # Should be unique for each entry
+new_classes = ["Metrics7", "Cids0"]
+deleted_classes = ["Metrics6"]
+[[migrations]]
+tag = "v8" # Should be unique for each entry
+new_classes = ["Metrics8", "Cids1"]
+deleted_classes = ["Metrics7", "Cids0"]
+[[migrations]]
+tag = "v9" # Should be unique for each entry
+new_classes = ["Metrics9", "CidsTracker0"]
+deleted_classes = ["Metrics8", "Cids1"]
+[[migrations]]
+tag = "v10" # Should be unique for each entry
+new_classes = ["Metrics10"]
+deleted_classes = ["Metrics9"]
+[[migrations]]
+tag = "v11" # Should be unique for each entry
+new_classes = ["Metrics11"]
+deleted_classes = ["Metrics10"]
+[[migrations]]
+tag = "v12" # Should be unique for each entry
+new_classes = ["Metrics12"]
+deleted_classes = ["Metrics11"]
+[[migrations]]
+tag = "v13" # Should be unique for each entry
+new_classes = ["Metrics13"]
+deleted_classes = ["Metrics12"]
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
index a306b4539d..954bd04ec4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3252,7 +3252,7 @@
   dependencies:
     "@types/node" "*"
 
-"@types/retry@^0.12.0":
+"@types/retry@^0.12.0", "@types/retry@^0.12.1":
   version "0.12.1"
   resolved "https://registry.yarnpkg.com/@types/retry/-/retry-0.12.1.tgz#d8f1c0d0dc23afad6dc16a9e993a0865774b4065"
   integrity sha512-xoDlM2S4ortawSWORYqsdU+2rxdh4LRW9ytc3zmT37RIKQh6IHyKwwtKhKis9ah8ol07DCkZxPt8BBvPjC6v4g==
@@ -3754,6 +3754,14 @@ aggregate-error@^3.0.0:
     clean-stack "^2.0.0"
     indent-string "^4.0.0"
 
+aggregate-error@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/aggregate-error/-/aggregate-error-4.0.0.tgz#83dbdb53a0d500721281d22e19eee9bc352a89cd"
+  integrity sha512-8DGp7zUt1E9k0NE2q4jlXHk+V3ORErmwolEdRz9iV+LKJ40WhMHh92cxAvhqV2I+zEn/gotIoqoMs0NjF3xofg==
+  dependencies:
+    clean-stack "^4.0.0"
+    indent-string "^5.0.0"
+
 ajv-formats@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ajv-formats/-/ajv-formats-2.1.1.tgz#6e669400659eb74973bbf2e33327180a0996b520"
@@ -3884,7 +3892,7 @@ ansi-styles@^2.2.1:
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
   integrity sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=
 
-ansi-styles@^3.2.1:
+ansi-styles@^3.1.0, ansi-styles@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
   integrity sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==
@@ -4243,6 +4251,13 @@ axe-core@^4.3.5:
   resolved "https://registry.yarnpkg.com/axe-core/-/axe-core-4.3.5.tgz#78d6911ba317a8262bfee292aeafcc1e04b49cc5"
   integrity sha512-WKTW1+xAzhMS5dJsxWkliixlO/PqC4VhmO9T4juNYcaTg9jzWiJsou6m5pxWYGfigWbwzJWeFY6z47a+4neRXA==
 
+axios@0.21.3:
+  version "0.21.3"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.21.3.tgz#f85d9b747f9b66d59ca463605cedf1844872b82e"
+  integrity sha512-JtoZ3Ndke/+Iwt5n+BgSli/3idTvpt5OjKyoCmz4LX5+lPiY5l7C1colYezhlxThjNa/NhngCUWZSZFypIFuaA==
+  dependencies:
+    follow-redirects "^1.14.0"
+
 axios@^0.21.1:
   version "0.21.4"
   resolved "https://registry.yarnpkg.com/axios/-/axios-0.21.4.tgz#c67b90dc0568e5c1cf2b0b858c43ba28e2eda575"
@@ -4382,7 +4397,7 @@ binary-extensions@^2.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-2.2.0.tgz#75f502eeaf9ffde42fc98829645be4ea76bd9e2d"
   integrity sha512-jDctJ/IVQbZoJykoeHbhXpOlNBqGNcwXJKJog42E5HDPUwQTSdjCHdihjj0DlnheQ7blbT6dHOafNAiS8ooQKA==
 
-bl@^4.1.0:
+bl@^4.0.3, bl@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/bl/-/bl-4.1.0.tgz#451535264182bec2fbbc83a62ab98cf11d9f7b3a"
   integrity sha512-1W07cM9gS6DcLperZfFSj+bWLtaPGSOHWhPiGzXmvVJbRLdG82sH/Kn8EtW1VqWVA54AKf2h5k5BbnIbwF3h6w==
@@ -4544,6 +4559,14 @@ brorand@^1.0.1, brorand@^1.1.0:
   resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
   integrity sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=
 
+brotli-size@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/brotli-size/-/brotli-size-0.1.0.tgz#a2c518096c7c1a75e9e66908a42cd9dc77d2b69f"
+  integrity sha512-5ny7BNvpe2TSmdafF1T9dnFYp3AIrJ8qJt29K0DQJzORlK38LBim/CmlY26JtreV6SWmXza7Oa+9m61SzvxR0Q==
+  dependencies:
+    duplexer "^0.1.1"
+    iltorb "^2.4.3"
+
 browser-readablestream-to-it@^1.0.1, browser-readablestream-to-it@^1.0.2, browser-readablestream-to-it@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/browser-readablestream-to-it/-/browser-readablestream-to-it-1.0.3.tgz#ac3e406c7ee6cdf0a502dd55db33bab97f7fba76"
@@ -4742,6 +4765,22 @@ builtin-status-codes@^3.0.0:
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
   integrity sha1-hZgoeOIbmOHGZCXgPQF0eI9Wnug=
 
+bundlesize@^0.18.1:
+  version "0.18.1"
+  resolved "https://registry.yarnpkg.com/bundlesize/-/bundlesize-0.18.1.tgz#17b5c158e7a0d01d70c65c616d87783dfd4b55f3"
+  integrity sha512-NAsKBH6BeVmDopoa4tod0m5/koM7iLY3saKyGn7wyAravBYmKNUpDJba4zyVhwRm5Dw9WXv8FIO0N//tCkx68Q==
+  dependencies:
+    axios "^0.21.1"
+    brotli-size "0.1.0"
+    bytes "^3.1.0"
+    ci-env "^1.4.0"
+    commander "^2.20.0"
+    cosmiconfig "^5.2.1"
+    github-build "^1.2.2"
+    glob "^7.1.4"
+    gzip-size "^4.0.0"
+    prettycli "^1.4.3"
+
 busboy@^0.2.11:
   version "0.2.14"
   resolved "https://registry.yarnpkg.com/busboy/-/busboy-0.2.14.tgz#6c2a622efcf47c57bbbe1e2a9c37ad36c7925453"
@@ -4839,6 +4878,25 @@ call-bind@^1.0.0, call-bind@^1.0.2:
     function-bind "^1.1.1"
     get-intrinsic "^1.0.2"
 
+caller-callsite@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/caller-callsite/-/caller-callsite-2.0.0.tgz#847e0fce0a223750a9a027c54b33731ad3154134"
+  integrity sha1-hH4PzgoiN1CpoCfFSzNzGtMVQTQ=
+  dependencies:
+    callsites "^2.0.0"
+
+caller-path@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-2.0.0.tgz#468f83044e369ab2010fac5f06ceee15bb2cb1f4"
+  integrity sha1-Ro+DBE42mrIBD6xfBs7uFbsssfQ=
+  dependencies:
+    caller-callsite "^2.0.0"
+
+callsites@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/callsites/-/callsites-2.0.0.tgz#06eb84f00eea413da86affefacbffb36093b3c50"
+  integrity sha1-BuuE8A7qQT2oav/vrL/7Ngk7PFA=
+
 callsites@^3.0.0, callsites@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-3.1.0.tgz#b3630abd8943432f54b3f0519238e33cd7df2f73"
@@ -4928,6 +4986,15 @@ ccount@^1.0.0, ccount@^1.0.3:
   resolved "https://registry.yarnpkg.com/ccount/-/ccount-1.1.0.tgz#246687debb6014735131be8abab2d93898f8d043"
   integrity sha512-vlNK021QdI7PNeiUh/lKkC/mNHHfV0m/Ad5JoI0TYtlBnJAslM/JIkm/tGC88bkLIwO6OQ5uV6ztS6kVAtCDlg==
 
+chalk@2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.1.0.tgz#ac5becf14fa21b99c6c92ca7a7d7cfd5b17e743e"
+  integrity sha512-LUHGS/dge4ujbXMJrnihYMcL4AoOweGnw9Tp3kQuqy1Kx5c1qKjqvMJZ6nVJPMWJtKCTN72ZogH3oeSO9g9rXQ==
+  dependencies:
+    ansi-styles "^3.1.0"
+    escape-string-regexp "^1.0.5"
+    supports-color "^4.0.0"
+
 chalk@2.4.2, chalk@^2.0.0, chalk@^2.4.1, chalk@^2.4.2:
   version "2.4.2"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
@@ -5036,6 +5103,11 @@ chokidar@3.5.2, chokidar@^3.4.2, chokidar@^3.4.3, chokidar@^3.5.2:
   optionalDependencies:
     fsevents "~2.3.2"
 
+chownr@^1.1.1:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.4.tgz#6fc9d7b42d32a583596337666e7d08084da2cc6b"
+  integrity sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==
+
 chrome-trace-event@^1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/chrome-trace-event/-/chrome-trace-event-1.0.3.tgz#1015eced4741e15d06664a957dbbf50d041e26ac"
@@ -5046,6 +5118,11 @@ chunkd@^2.0.1:
   resolved "https://registry.yarnpkg.com/chunkd/-/chunkd-2.0.1.tgz#49cd1d7b06992dc4f7fccd962fe2a101ee7da920"
   integrity sha512-7d58XsFmOq0j6el67Ug9mHf9ELUXsQXYJBkyxhH/k+6Ke0qXRnv0kbemx+Twc6fRJ07C49lcbdgm9FL1Ei/6SQ==
 
+ci-env@^1.4.0:
+  version "1.17.0"
+  resolved "https://registry.yarnpkg.com/ci-env/-/ci-env-1.17.0.tgz#386b8821ce5da1cd0b2b6a06c1f52b1433f8889a"
+  integrity sha512-NtTjhgSEqv4Aj90TUYHQLxHdnCPXnjdtuGG1X8lTfp/JqeXTdw0FTWl/vUAPuvbWZTF8QVpv6ASe/XacE+7R2A==
+
 ci-info@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-2.0.0.tgz#67a9e964be31a51e15e5010d58e6f12834002f46"
@@ -5096,6 +5173,13 @@ clean-stack@^2.0.0:
   resolved "https://registry.yarnpkg.com/clean-stack/-/clean-stack-2.2.0.tgz#ee8472dbb129e727b31e8a10a427dee9dfe4008b"
   integrity sha512-4diC9HaTE+KRAMWhDhrGOECgWZxoevMc5TlkObMqNSsVU62PYzXZ/SMTjzyGAFF1YusgxGcSWTEXBhp0CPwQ1A==
 
+clean-stack@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/clean-stack/-/clean-stack-4.1.0.tgz#5ce5a2fd19a12aecdce8570daefddb7ac94b6b4e"
+  integrity sha512-dxXQYI7mfQVcaF12s6sjNFoZ6ZPDQuBBLp3QJ5156k9EvUFClUoZ11fo8HnLQO241DDVntHEug8MOuFO5PSfRg==
+  dependencies:
+    escape-string-regexp "5.0.0"
+
 clean-yaml-object@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/clean-yaml-object/-/clean-yaml-object-0.1.0.tgz#63fb110dc2ce1a84dc21f6d9334876d010ae8b68"
@@ -5500,6 +5584,16 @@ cors@2.8.5:
     object-assign "^4"
     vary "^1"
 
+cosmiconfig@^5.2.1:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.2.1.tgz#040f726809c591e77a17c0a3626ca45b4f168b1a"
+  integrity sha512-H65gsXo1SKjf8zmrJ67eJk8aIRKV5ff2D4uKZIBZShbhGSpEmsQOPW/SKMKYhSTrqR7ufy6RP69rPogdaPh/kA==
+  dependencies:
+    import-fresh "^2.0.0"
+    is-directory "^0.3.1"
+    js-yaml "^3.13.1"
+    parse-json "^4.0.0"
+
 cosmiconfig@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-6.0.0.tgz#da4fee853c52f6b1e6935f41c1a2fc50bd4a9982"
@@ -5954,6 +6048,13 @@ decompress-response@^3.3.0:
   dependencies:
     mimic-response "^1.0.0"
 
+decompress-response@^4.2.0:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/decompress-response/-/decompress-response-4.2.1.tgz#414023cc7a302da25ce2ec82d0d5238ccafd8986"
+  integrity sha512-jOSne2qbyE+/r8G1VU+G/82LBs2Fs4LAsTiLSHOCOMZQl2OKZ6i8i4IyHemTe+/yIXOtTcRQMzPcgyhoFlqPkw==
+  dependencies:
+    mimic-response "^2.0.0"
+
 decompress-response@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/decompress-response/-/decompress-response-6.0.0.tgz#ca387612ddb7e104bd16d85aab00d5ecf09c66fc"
@@ -6139,6 +6240,11 @@ detab@2.0.4:
   dependencies:
     repeat-string "^1.5.4"
 
+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=
+
 detect-node@^2.0.4, detect-node@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/detect-node/-/detect-node-2.1.0.tgz#c9c70775a49c3d03bc2c06d9a73be550f978f8b1"
@@ -6464,7 +6570,7 @@ encoding@0.1.13, encoding@^0.1.11, encoding@^0.1.13:
   dependencies:
     iconv-lite "^0.6.2"
 
-end-of-stream@^1.1.0:
+end-of-stream@^1.1.0, end-of-stream@^1.4.1:
   version "1.4.4"
   resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.4.tgz#5ae64a5f45057baf3626ec14da0ca5e4b2431eb0"
   integrity sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==
@@ -6990,6 +7096,11 @@ escape-string-regexp@4.0.0, escape-string-regexp@^4.0.0:
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz#14ba83a5d373e3d311e5afca29cf5bfad965bf34"
   integrity sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==
 
+escape-string-regexp@5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-5.0.0.tgz#4683126b500b61762f2dbebace1806e8be31b1c8"
+  integrity sha512-/veY75JbMK4j1yjvuUxuVsiS/hr/4iHs9FTT6cgTexxdE0Ly/glccBAkloH/DofkjRbZU3bnoj38mOmhkZ0lHw==
+
 escape-string-regexp@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-2.0.0.tgz#a30304e99daa32e23b2fd20f51babd07cffca344"
@@ -7476,6 +7587,11 @@ exit-on-epipe@~1.0.1:
   resolved "https://registry.yarnpkg.com/exit-on-epipe/-/exit-on-epipe-1.0.1.tgz#0bdd92e87d5285d267daa8171d0eb06159689692"
   integrity sha512-h2z5mrROTxce56S+pnvAV890uu7ls7f1kEvVGJbw1OlFH3/mlJ5bkXu0KRyW94v37zzHPiUd55iLn3DA7TjWpw==
 
+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==
+
 express-http-proxy@^1.6.2:
   version "1.6.3"
   resolved "https://registry.yarnpkg.com/express-http-proxy/-/express-http-proxy-1.6.3.tgz#f3ef139ffd49a7962e7af0462bbcca557c913175"
@@ -7916,6 +8032,11 @@ fromentries@^1.2.0:
   resolved "https://registry.yarnpkg.com/fromentries/-/fromentries-1.3.2.tgz#e4bca6808816bf8f93b52750f1127f5a6fd86e3a"
   integrity sha512-cHEpEQHUg0f8XdtZCc2ZAhrHzKzT0MrFUTcvx+hfxYu7rGMDc5SKoXFh+n4YigxsHXRzc6OrCshdR1bWH6HHyg==
 
+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@^10.0.0:
   version "10.0.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-10.0.0.tgz#9ff61b655dde53fb34a82df84bb214ce802e17c1"
@@ -8051,6 +8172,18 @@ git-rev-sync@^3.0.1:
     graceful-fs "4.1.15"
     shelljs "0.8.4"
 
+github-build@^1.2.2:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/github-build/-/github-build-1.2.3.tgz#1f61bf6edb789370f291e7f0e081236ed0fbb830"
+  integrity sha512-57zUA9ZbaKQHxoUATq3dkr+gUeaOWGGC/3Vw/AJNIUkiUmd7DnYM9TMTmUknbkuvx6+SeSqWpLBunZZzCPLUMg==
+  dependencies:
+    axios "0.21.3"
+
+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=
+
 github-slugger@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/github-slugger/-/github-slugger-1.4.0.tgz#206eb96cdb22ee56fdc53a28d5a302338463444e"
@@ -8363,6 +8496,14 @@ growl@1.10.5:
   resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.5.tgz#f2735dc2283674fa67478b10181059355c369e5e"
   integrity sha512-qBr4OuELkhPenW6goKVXiv47US3clb3/IbuWF9KNKEijAy9oeHxU9IgzjvJhHkUzhaj7rOUD7+YGWqUjLp5oSA==
 
+gzip-size@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/gzip-size/-/gzip-size-4.1.0.tgz#8ae096257eabe7d69c45be2b67c448124ffb517c"
+  integrity sha1-iuCWJX6r59acRb4rZ8RIEk/7UXw=
+  dependencies:
+    duplexer "^0.1.1"
+    pify "^3.0.0"
+
 gzip-size@^5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/gzip-size/-/gzip-size-5.1.1.tgz#cb9bee692f87c0612b232840a873904e4c135274"
@@ -8416,6 +8557,11 @@ has-dynamic-import@^2.0.0:
     call-bind "^1.0.2"
     get-intrinsic "^1.1.1"
 
+has-flag@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
+  integrity sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=
+
 has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
@@ -8883,6 +9029,17 @@ ignore@^5.2.0:
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-5.2.0.tgz#6d3bac8fa7fe0d45d9f9be7bac2fc279577e345a"
   integrity sha512-CmxgYGiEPCLhfLnpPp1MoRmifwEIOgjcHXxOBjv7mY96c+eWScsOP9c112ZyLdWHi0FxHjI+4uVhKYp/gcdRmQ==
 
+iltorb@^2.4.3:
+  version "2.4.5"
+  resolved "https://registry.yarnpkg.com/iltorb/-/iltorb-2.4.5.tgz#d64434b527099125c6839ed48b666247a172ef87"
+  integrity sha512-EMCMl3LnnNSZJS5QrxyZmMTaAC4+TJkM5woD+xbpm9RB+mFYCr7C05GFE3TEGCsVQSVHmjX+3sf5AiwsylNInQ==
+  dependencies:
+    detect-libc "^1.0.3"
+    nan "^2.14.0"
+    npmlog "^4.1.2"
+    prebuild-install "^5.3.3"
+    which-pm-runs "^1.0.0"
+
 image-size@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/image-size/-/image-size-1.0.0.tgz#58b31fe4743b1cec0a0ac26f5c914d3c5b2f0750"
@@ -8905,6 +9062,14 @@ immutable@^3.x.x:
   resolved "https://registry.yarnpkg.com/immutable/-/immutable-3.8.2.tgz#c2439951455bb39913daf281376f1530e104adf3"
   integrity sha1-wkOZUUVbs5kT2vKBN28VMOEErfM=
 
+import-fresh@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/import-fresh/-/import-fresh-2.0.0.tgz#d81355c15612d386c61f9ddd3922d4304822a546"
+  integrity sha1-2BNVwVYS04bGH53dOSLUMEgipUY=
+  dependencies:
+    caller-path "^2.0.0"
+    resolve-from "^3.0.0"
+
 import-fresh@^3.0.0, import-fresh@^3.1.0, import-fresh@^3.2.1, import-fresh@^3.2.2, import-fresh@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/import-fresh/-/import-fresh-3.3.0.tgz#37162c25fcb9ebaa2e6e53d5b4d88ce17d9e0c2b"
@@ -8941,6 +9106,11 @@ indent-string@^4.0.0:
   resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-4.0.0.tgz#624f8f4497d619b2d9768531d58f4122854d7251"
   integrity sha512-EdDDZu4A2OyIK7Lr/2zG+w5jmbuk1DVBnEwREQvBzspBJkCEbRa8GxU1lghYcaGJCnRWibjDXlq779X1/y5xwg==
 
+indent-string@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-5.0.0.tgz#4fd2980fccaf8622d14c64d694f4cf33c81951a5"
+  integrity sha512-m6FAo/spmsW2Ab2fU35JTYwtOKa2yAwXSwgjSv1TJzh4Mh7mC3lzAOVLBprb72XsTrgkEIsl7YrFNAiDiRhIGg==
+
 infima@0.2.0-alpha.36:
   version "0.2.0-alpha.36"
   resolved "https://registry.yarnpkg.com/infima/-/infima-0.2.0-alpha.36.tgz#205515680e2dc588ec1a07b6ce108e49b29cc810"
@@ -9589,6 +9759,11 @@ is-decimal@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-decimal/-/is-decimal-1.0.4.tgz#65a3a5958a1c5b63a706e1b333d7cd9f630d3fa5"
   integrity sha512-RGdriMmQQvZ2aqaQq3awNA6dCGtKpiDFcOzrTWrDAT2MiWrKQVPmxLGHl7Y2nNu6led0kEyoX0enY0qXYsv9zw==
 
+is-directory@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/is-directory/-/is-directory-0.3.1.tgz#61339b6f2475fc772fd9c9d83f5c8575dc154ae1"
+  integrity sha1-YTObbyR1/Hcv2cnYP1yFddwVSuE=
+
 is-docker@^2.0.0, is-docker@^2.1.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/is-docker/-/is-docker-2.2.1.tgz#33eeabe23cfe86f14bde4408a02c0cfb853acdaa"
@@ -10206,6 +10381,11 @@ iterall@^1.1.3, iterall@^1.2.1, iterall@^1.2.2:
   resolved "https://registry.yarnpkg.com/iterall/-/iterall-1.3.0.tgz#afcb08492e2915cbd8a0884eb93a8c94d0d72fea"
   integrity sha512-QZ9qOMdF+QLHxy1QIpUHUU1D5pS2CG2P69LF6L6CPjPYA/XMOmKV3PZpawHoAjHNyB0swdVTRxdYT4tbBbxqwg==
 
+itty-router@^2.4.5:
+  version "2.4.8"
+  resolved "https://registry.yarnpkg.com/itty-router/-/itty-router-2.4.8.tgz#6b2ab34268a3516ea0112139dc2cca83cdedf2ce"
+  integrity sha512-VpAHeAN+/ABLqT/zEnwMomNCDh8eRrs06C8HRR8OxjVwGhXtvzoJbggjUnjAeNGxqjV4w7pp87Iu8jzEpr92fg==
+
 jest-worker@27.0.0-next.5:
   version "27.0.0-next.5"
   resolved "https://registry.yarnpkg.com/jest-worker/-/jest-worker-27.0.0-next.5.tgz#5985ee29b12a4e191f4aae4bb73b97971d86ec28"
@@ -11271,6 +11451,11 @@ mimic-response@^1.0.0, mimic-response@^1.0.1:
   resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-1.0.1.tgz#4923538878eef42063cb8a3e3b0798781487ab1b"
   integrity sha512-j5EctnkH7amfV/q5Hgmoal1g2QHFJRraOtmx0JpIqkxhBhI/lJSl1nMpQ45hVarwNETOoWEimndZ4QK0RHxuxQ==
 
+mimic-response@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-2.1.0.tgz#d13763d35f613d09ec37ebb30bac0469c0ee8f43"
+  integrity sha512-wXqjST+SLt7R009ySCglWBCFpjUygmCIfD790/kVbiGmUgfYGuB14PiTd5DwVxSV4NcYHjzMkoj5LjQZwTQLEA==
+
 mimic-response@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-3.1.0.tgz#2d1d59af9c1b129815accc2c46a022a5ce1fa3c9"
@@ -11356,11 +11541,16 @@ minimist-options@4.1.0:
     is-plain-obj "^1.1.0"
     kind-of "^6.0.3"
 
-minimist@^1.2.0, minimist@^1.2.5:
+minimist@^1.2.0, minimist@^1.2.3, minimist@^1.2.5:
   version "1.2.5"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
   integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
 
+mkdirp-classic@^0.5.2, mkdirp-classic@^0.5.3:
+  version "0.5.3"
+  resolved "https://registry.yarnpkg.com/mkdirp-classic/-/mkdirp-classic-0.5.3.tgz#fa10c9115cc6d8865be221ba47ee9bed78601113"
+  integrity sha512-gKLcREMhtuZRwRAfqP3RFW+TK4JqApVBtOIftVgjuABpAtpxhPGaDcfvbhNvD0B8iD1oUr/txX35NjcaY6Ns/A==
+
 mkdirp@^0.5.1, mkdirp@^0.5.4, mkdirp@^0.5.5:
   version "0.5.5"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
@@ -11568,6 +11758,11 @@ mustache@^4.2.0:
   resolved "https://registry.yarnpkg.com/mustache/-/mustache-4.2.0.tgz#e5892324d60a12ec9c2a73359edca52972bf6f64"
   integrity sha512-71ippSywq5Yb7/tVYyGbkBggbU8H3u5Rz56fH60jGFgr8uHwxs+aSKeqmluIVzM0m0kB7xQjKS6qPfd0b2ZoqQ==
 
+nan@^2.14.0:
+  version "2.15.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.15.0.tgz#3f34a473ff18e15c1b5626b62903b5ad6e665fee"
+  integrity sha512-8ZtvEnA2c5aYCZYd1cvgdnU6cqwixRoYg70xPLWUws5ORTa/lnw+u4amixRS/Ac5U5mQVgp9pnlSUnbNWFaWZQ==
+
 nano-time@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/nano-time/-/nano-time-1.0.0.tgz#b0554f69ad89e22d0907f7a12b0993a5d96137ef"
@@ -11585,6 +11780,11 @@ nanoid@^3.0.2, nanoid@^3.1.20, nanoid@^3.1.23, nanoid@^3.1.30:
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.30.tgz#63f93cc548d2a113dc5dfbc63bfa09e2b9b64362"
   integrity sha512-zJpuPDwOv8D2zq2WRoMe1HsfZthVewpel9CAvTfc/2mBD1uUT/agc5f7GHGWXlYkFvi1mVxe4IjvP2HNrop7nQ==
 
+napi-build-utils@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/napi-build-utils/-/napi-build-utils-1.0.2.tgz#b1fddc0b2c46e380a0b7a76f984dd47c41a13806"
+  integrity sha512-ONmRUqK7zj7DWX0D9ADe03wbwOBZxNAfF20PlGfCWQcD3+/MakShIHrMqx9YwPTfxDdF1zLeL+RGZiR9kGMLdg==
+
 napi-macros@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/napi-macros/-/napi-macros-2.0.0.tgz#2b6bae421e7b96eb687aa6c77a7858640670001b"
@@ -11738,6 +11938,13 @@ no-case@^3.0.4:
     lower-case "^2.0.2"
     tslib "^2.0.3"
 
+node-abi@^2.7.0:
+  version "2.30.1"
+  resolved "https://registry.yarnpkg.com/node-abi/-/node-abi-2.30.1.tgz#c437d4b1fe0e285aaf290d45b45d4d7afedac4cf"
+  integrity sha512-/2D0wOQPgaUWzVSVgRMx+trKJRC2UG4SUc4oCJoXx9Uxjtp0Vy3/kt7zcbxHF8+Z/pK3UloLWzBISg72brfy1w==
+  dependencies:
+    semver "^5.4.1"
+
 node-addon-api@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-2.0.2.tgz#432cfa82962ce494b132e9d72a15b29f71ff5d32"
@@ -11813,6 +12020,11 @@ node-releases@^2.0.1:
   resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-2.0.1.tgz#3d1d395f204f1f2f29a54358b9fb678765ad2fc5"
   integrity sha512-CqyzN6z7Q6aMeF/ktcMVTzhAHCEpf8SOarwpzpf8pNBY2k5/oM34UHldUwp8VKI7uxct2HxSRdJjBaZeESzcxA==
 
+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=
+
 normalize-package-data@^2.3.2, normalize-package-data@^2.5.0:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.5.0.tgz#e66db1838b200c1dfc233225d12cb36520e234a8"
@@ -11875,7 +12087,7 @@ npm-run-path@^4.0.1:
   dependencies:
     path-key "^3.0.0"
 
-npmlog@^4.1.2:
+npmlog@^4.0.1, 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==
@@ -12152,6 +12364,14 @@ os-browserify@0.3.0:
   resolved "https://registry.yarnpkg.com/os-browserify/-/os-browserify-0.3.0.tgz#854373c7f5c2315914fc9bfc6bd8238fdda1ec27"
   integrity sha1-hUNzx/XCMVkU/Jv8a9gjj92h7Cc=
 
+p-any@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/p-any/-/p-any-4.0.0.tgz#0e9c8b0fa3e58cc79e6a1c6c715aa9326b6a4447"
+  integrity sha512-S/B50s+pAVe0wmEZHmBs/9yJXeZ5KhHzOsgKzt0hRdgkoR3DxW9ts46fcsWi/r3VnzsnkKS7q4uimze+zjdryw==
+  dependencies:
+    p-cancelable "^3.0.0"
+    p-some "^6.0.0"
+
 p-cancelable@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/p-cancelable/-/p-cancelable-1.1.0.tgz#d078d15a3af409220c886f1d9a0ca2e441ab26cc"
@@ -12162,6 +12382,11 @@ p-cancelable@^2.0.0:
   resolved "https://registry.yarnpkg.com/p-cancelable/-/p-cancelable-2.1.1.tgz#aab7fbd416582fa32a3db49859c122487c5ed2cf"
   integrity sha512-BZOr3nRQHOntUjTrH8+Lh54smKHoHyur8We1V8DSMVrl5A2malOOwuJRnKRDjSnkoeBh4at6BwEnb5I7Jl31wg==
 
+p-cancelable@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/p-cancelable/-/p-cancelable-3.0.0.tgz#63826694b54d61ca1c20ebcb6d3ecf5e14cd8050"
+  integrity sha512-mlVgR3PGuzlo0MmTdk4cXqXWlwQDLnONTAg6sm62XkMJEiRxN3GL3SffkYvqwonbkJBcrI7Uvv5Zh9yjvn2iUw==
+
 p-defer@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-defer/-/p-defer-1.0.0.tgz#9f6eb182f6c9aa8cd743004a7d4f96b196b0fb0c"
@@ -12288,6 +12513,14 @@ p-retry@^4.5.0, p-retry@^4.6.1:
     "@types/retry" "^0.12.0"
     retry "^0.13.1"
 
+p-retry@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/p-retry/-/p-retry-5.0.0.tgz#012d6e2d4a8774d151d15ac7ecdd98b63d65bbef"
+  integrity sha512-swGFiU6Y1Q3rBikAGHpaT0FHSbiO9H04fSsJRKVtWyEQMAe2Sb1uXeBcqE/RlZqt2prlq4W2HA/+MZAt3V2NkQ==
+  dependencies:
+    "@types/retry" "^0.12.1"
+    retry "^0.13.1"
+
 p-settle@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/p-settle/-/p-settle-5.0.0.tgz#b7008de2f225ed9132317d995ead4c007684024e"
@@ -12296,6 +12529,14 @@ p-settle@^5.0.0:
     p-limit "^4.0.0"
     p-reflect "^3.0.0"
 
+p-some@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/p-some/-/p-some-6.0.0.tgz#4613a822038abe125e42152ea9f7705a7967526f"
+  integrity sha512-CJbQCKdfSX3fIh8/QKgS+9rjm7OBNUTmwWswAFQAhc8j1NR1dsEDETUEuVUtQHZpV+J03LqWBEwvu0g1Yn+TYg==
+  dependencies:
+    aggregate-error "^4.0.0"
+    p-cancelable "^3.0.0"
+
 p-timeout@^3.1.0, p-timeout@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/p-timeout/-/p-timeout-3.2.0.tgz#c7e17abc971d2a7962ef83626b35d635acf23dfe"
@@ -13298,6 +13539,27 @@ postgres-interval@^1.1.0:
   dependencies:
     xtend "^4.0.0"
 
+prebuild-install@^5.3.3:
+  version "5.3.6"
+  resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-5.3.6.tgz#7c225568d864c71d89d07f8796042733a3f54291"
+  integrity sha512-s8Aai8++QQGi4sSbs/M1Qku62PFK49Jm1CbgXklGz4nmHveDq0wzJkg7Na5QbnO1uNH8K7iqx2EQ/mV0MZEmOg==
+  dependencies:
+    detect-libc "^1.0.3"
+    expand-template "^2.0.3"
+    github-from-package "0.0.0"
+    minimist "^1.2.3"
+    mkdirp-classic "^0.5.3"
+    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@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.2.1.tgz#debc6489d7a6e6b0e7611888cec880337d316396"
@@ -13338,6 +13600,13 @@ pretty-time@^1.1.0:
   resolved "https://registry.yarnpkg.com/pretty-time/-/pretty-time-1.1.0.tgz#ffb7429afabb8535c346a34e41873adf3d74dd0e"
   integrity sha512-28iF6xPQrP8Oa6uxE6a1biz+lWeTOAPKggvjB8HAs6nVMKZwf5bG++632Dx614hIWgUPkgivRfG+a8uAXGTIbA==
 
+prettycli@^1.4.3:
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/prettycli/-/prettycli-1.4.3.tgz#b28ec2aad9de07ae1fd75ef294fb54cbdee07ed5"
+  integrity sha512-KLiwAXXfSWXZqGmZlnKPuGMTFp+0QbcySplL1ft9gfteT/BNsG64Xo8u2Qr9r+qnsIZWBQ66Zs8tg+8s2fmzvw==
+  dependencies:
+    chalk "2.1.0"
+
 printj@~1.1.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/printj/-/printj-1.1.2.tgz#d90deb2975a8b9f600fb3a1c94e3f4c53c78a222"
@@ -13628,7 +13897,7 @@ raw-body@2.4.2, raw-body@^2.3.0:
     iconv-lite "0.4.24"
     unpipe "1.0.0"
 
-rc@^1.2.8:
+rc@^1.2.7, rc@^1.2.8:
   version "1.2.8"
   resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.8.tgz#cd924bf5200a075b83c188cd6b9e211b7fc0d3ed"
   integrity sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==
@@ -14286,6 +14555,11 @@ resolve-cwd@^3.0.0:
   dependencies:
     resolve-from "^5.0.0"
 
+resolve-from@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-3.0.0.tgz#b22c7af7d9d6881bc8b6e653335eebcb0a188748"
+  integrity sha1-six699nWiBvItuZTM17rywoYh0g=
+
 resolve-from@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-4.0.0.tgz#4abcd852ad32dd7baabfe9b40e00a36db5f392e6"
@@ -14864,6 +15138,15 @@ simple-get@^2.7.0:
     once "^1.3.1"
     simple-concat "^1.0.0"
 
+simple-get@^3.0.3:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/simple-get/-/simple-get-3.1.0.tgz#b45be062435e50d159540b576202ceec40b9c6b3"
+  integrity sha512-bCR6cP+aTdScaQCnQKbPKtJOKDp/hj9EDLJo3Nw4y1QksqaovlW/bnptB6/c1e+qmNIDHRK+oXFDdEqBT8WzUA==
+  dependencies:
+    decompress-response "^4.2.0"
+    once "^1.3.1"
+    simple-concat "^1.0.0"
+
 simple-git-hooks@^2.3.1:
   version "2.7.0"
   resolved "https://registry.yarnpkg.com/simple-git-hooks/-/simple-git-hooks-2.7.0.tgz#121a5c3023663b8abcc5648c8bfe8619dc263705"
@@ -15523,6 +15806,13 @@ supports-color@^2.0.0:
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
   integrity sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=
 
+supports-color@^4.0.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.5.0.tgz#be7a0de484dec5c5cddf8b3d59125044912f635b"
+  integrity sha1-vnoN5ITexcXN34s9WRJQRJEvY1s=
+  dependencies:
+    has-flag "^2.0.0"
+
 supports-color@^5.3.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
@@ -15668,6 +15958,27 @@ tape@^5.2.2:
     string.prototype.trim "^1.2.5"
     through "^2.3.8"
 
+tar-fs@^2.0.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/tar-fs/-/tar-fs-2.1.1.tgz#489a15ab85f1f0befabb370b7de4f9eb5cbe8784"
+  integrity sha512-V0r2Y9scmbDRLCNex/+hYzvp/zyYjvFbHPNgVTKfQvVrb6guiE/fxP+XblDNR011utopbkex2nM4dHNV6GDsng==
+  dependencies:
+    chownr "^1.1.1"
+    mkdirp-classic "^0.5.2"
+    pump "^3.0.0"
+    tar-stream "^2.1.4"
+
+tar-stream@^2.1.4:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-2.2.0.tgz#acad84c284136b060dc3faa64474aa9aebd77287"
+  integrity sha512-ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==
+  dependencies:
+    bl "^4.0.3"
+    end-of-stream "^1.4.1"
+    fs-constants "^1.0.0"
+    inherits "^2.0.3"
+    readable-stream "^3.1.1"
+
 temp-dir@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/temp-dir/-/temp-dir-2.0.0.tgz#bde92b05bdfeb1516e804c9c00ad45177f31321e"
@@ -15952,6 +16263,13 @@ tty-browserify@0.0.1:
   resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.1.tgz#3f05251ee17904dfd0677546670db9651682b811"
   integrity sha512-C3TaO7K81YvjCgQH9Q1S3R3P3BtN3RIM8n+OvX4il1K1zgE8ZhI0op7kClgkxtutIE8hQrcrHBXvIheqKUUCxw==
 
+tunnel-agent@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"
+  integrity sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=
+  dependencies:
+    safe-buffer "^5.0.1"
+
 tweetnacl-util@^0.15.0:
   version "0.15.1"
   resolved "https://registry.yarnpkg.com/tweetnacl-util/-/tweetnacl-util-0.15.1.tgz#b80fcdb5c97bcc508be18c44a4be50f022eea00b"
@@ -16904,6 +17222,11 @@ 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-typed-array@^1.1.2:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/which-typed-array/-/which-typed-array-1.1.7.tgz#2761799b9a22d4b8660b3c1b40abaa7739691793"