diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 0000000..cdecab1
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1 @@
+lib/*
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..cdecab1
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1 @@
+lib/*
diff --git a/nuxt.config.js b/nuxt.config.js
index 6452dd0..139b2e8 100644
--- a/nuxt.config.js
+++ b/nuxt.config.js
@@ -72,7 +72,7 @@ module.exports = {
   /*
    ** Plugins to load before mounting the App
    */
-  plugins: [],
+  plugins: [{ src: '~plugins/phase2', ssr: false }],
   /*
    ** Nuxt.js dev-modules
    */
@@ -107,7 +107,12 @@ module.exports = {
     /*
      ** You can extend webpack config here
      */
-    extend(config, ctx) {},
+    extend(config, ctx) {
+      config.module.rules.push({
+        test: /\.js$/,
+        loader: require.resolve('@open-wc/webpack-import-meta-loader')
+      })
+    },
     html: {
       minify: {
         collapseWhitespace: true, // as @dario30186 mentioned
diff --git a/package.json b/package.json
index 5d04725..bb98527 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,7 @@
   },
   "dependencies": {
     "@nuxtjs/axios": "^5.3.6",
+    "@open-wc/webpack-import-meta-loader": "^0.4.1",
     "async-mutex": "^0.1.4",
     "aws-sdk": "^2.610.0",
     "body-parser": "^1.19.0",
@@ -23,6 +24,7 @@
     "express-fileupload": "^1.1.6",
     "express-session": "^1.17.0",
     "morgan": "^1.9.1",
+    "multer": "^1.4.2",
     "mysql2": "^2.1.0",
     "nuxt": "^2.0.0",
     "nuxt-buefy": "^0.3.2",
diff --git a/pages/index.vue b/pages/index.vue
index 1858ae6..c692791 100644
--- a/pages/index.vue
+++ b/pages/index.vue
@@ -2,18 +2,21 @@
   <div class="has-text-centered">
     <div class="title is-size-1">Hello, Anonymous</div>
     <div class="buttons is-centered">
-      <b-button :disable="isContributeBtnDisabled" type="is-primary" outlined
+      <b-button
+        :disable="isContributeBtnDisabled"
+        @click="makeContribution"
+        type="is-primary"
+        outlined
         >Make the contribution</b-button
       >
       <b-button type="is-primary" outlined>Sign In</b-button>
     </div>
+    {{ status }}
   </div>
 </template>
 
 <script>
 /* eslint-disable no-console */
-import init, { contribute } from '@/lib/phase2/phase2.js'
-const initPromise = init()
 
 const timeout = (ms) => new Promise((resolve) => setTimeout(resolve, ms))
 
@@ -28,15 +31,15 @@ export default {
     async makeContribution({ retry = 0 } = {}) {
       try {
         this.isContributeBtnDisabled = true
-        await initPromise
 
         this.status = 'Downloading last contribution'
-        let data = await fetch('challenge')
+        let data = await fetch('api/challenge')
         data = new Uint8Array(await data.arrayBuffer())
 
         this.status = 'Generating random contribution'
         await timeout(100) // allow UI to update before freezing in wasm
         console.log('Source params', data)
+        const contribute = await this.$contribute()
         const result = contribute(data)
         console.log('Updated params', result)
 
@@ -45,7 +48,7 @@ export default {
         formData.append('response', new Blob([result], { type: 'application/octet-stream' }))
         formData.append('name', 'William') // TODO put real name here
         formData.append('company', 'Microsoft')
-        const resp = await fetch('response', {
+        const resp = await fetch('api/response', {
           method: 'POST',
           body: formData
         })
diff --git a/plugins/phase2.js b/plugins/phase2.js
new file mode 100644
index 0000000..d144ced
--- /dev/null
+++ b/plugins/phase2.js
@@ -0,0 +1,10 @@
+import init, { contribute } from '@/lib/phase2/phase2.js'
+
+export default ({ store, isHMR, app }, inject) => {
+  inject('contribute', main)
+}
+async function main() {
+  const initPromise = init()
+  await initPromise
+  return contribute
+}
diff --git a/server/controllers/contributions.js b/server/controllers/contributions.js
index 1e2ced1..875f4e3 100644
--- a/server/controllers/contributions.js
+++ b/server/controllers/contributions.js
@@ -1,5 +1,5 @@
-const aws = require('aws-sdk')
-const s3 = new aws.S3()
+// const aws = require('aws-sdk')
+// const s3 = new aws.S3()
 const fs = require('fs').promises
 const path = require('path')
 const util = require('util')
@@ -8,8 +8,10 @@ const express = require('express')
 const router = express.Router()
 const { Mutex } = require('async-mutex')
 const mutex = new Mutex()
-const Contribution = require('../models/contributions.model.js')
 const oauth = require('oauth')
+const multer = require('multer')
+const Contribution = require('../models/contributions.model.js')
+const upload = multer({ dest: '/tmp/tornado' })
 
 const consumer = new oauth.OAuth(
   'https://twitter.com/oauth/request_token',
@@ -18,53 +20,54 @@ const consumer = new oauth.OAuth(
   process.env.TWITTER_CONSUMER_SECRET,
   '1.0A',
   process.env.TWITTER_CALLBACK_URL,
-  'HMAC-SHA1')
+  'HMAC-SHA1'
+)
 
-async function uploadToS3(response) {
-  const currentContributionIndex = await Contribution.currentContributionIndex()
-  return await s3.upload({
-    Bucket: process.env.AWS_S3_BUCKET,
-    Key: `response_${currentContributionIndex}`,
-    ACL: 'public-read',
-    Body: response,
-  }).promise()
-}
+// async function uploadToS3(response) {
+//   const currentContributionIndex = await Contribution.currentContributionIndex()
+//   return await s3
+//     .upload({
+//       Bucket: process.env.AWS_S3_BUCKET,
+//       Key: `response_${currentContributionIndex}`,
+//       ACL: 'public-read',
+//       Body: response
+//     })
+//     .promise()
+// }
 
-async function verifyResponse() {
+async function verifyResponse({ filename }) {
   console.log('Running verifier')
   const { stdout, stderr } = await exec(
-    '../bin/verify_contribution circuit.json current.params /tmp/new.params', {
-      cwd: './snark_files/', 
-      env: { 'RUST_BACKTRACE': 1 }
+    `../bin/verify_contribution circuit.json current.params /tmp/tornado/${filename}`,
+    {
+      cwd: './server/snark_files/',
+      env: { RUST_BACKTRACE: 1 }
     }
   )
   console.log(stdout)
   console.error(stderr)
 }
 
-router.get('/', (req, res) => {
-  let userData
-  consumer.get(
-    'https://api.twitter.com/1.1/account/verify_credentials.json',
-    req.session.oauthAccessToken,
-    req.session.oauthAccessTokenSecret, 
-    function (error, data,) {
-      if (error) {
-        console.log('error', error)
-        userData = { name: 'Anonymous' }
-        res.render('pages/index', { userData })
-        // res.send("Error getting twitter screen name : " + util.inspect(error), 500);
-      } else {
-        userData = JSON.parse(data)
-        req.session.twitterScreenName = userData.screen_name 
-        res.render('pages/index', { userData })
-      } 
-    })
-})
-
-// router.get('/dashboard') --> index
-// router.get('/makeContribution')
-// router.get('/autotizeContribution?token=asdfas')
+// router.get('/', (req, res) => {
+//   let userData
+//   consumer.get(
+//     'https://api.twitter.com/1.1/account/verify_credentials.json',
+//     req.session.oauthAccessToken,
+//     req.session.oauthAccessTokenSecret,
+//     function(error, data) {
+//       if (error) {
+//         console.log('error', error)
+//         userData = { name: 'Anonymous' }
+//         res.render('pages/index', { userData })
+//         // res.send("Error getting twitter screen name : " + util.inspect(error), 500);
+//       } else {
+//         userData = JSON.parse(data)
+//         req.session.twitterScreenName = userData.screen_name
+//         res.render('pages/index', { userData })
+//       }
+//     }
+//   )
+// })
 
 router.get('/challenge', (req, res) => {
   res.sendFile('./snark_files/current.params', { root: path.join(__dirname, '../') })
@@ -75,8 +78,8 @@ router.get('/contributions', async (req, res) => {
   res.json(contributions).send()
 })
 
-router.post('/response', async (req, res) => {
-  if (!req.files.response) {
+router.post('/response', upload.single('response'), async (req, res) => {
+  if (!req.file) {
     res.status(400).send('Missing response file')
     return
   }
@@ -85,11 +88,12 @@ router.post('/response', async (req, res) => {
     const currentContributionIndex = await Contribution.currentContributionIndex()
     try {
       console.log(`Started processing contribution ${currentContributionIndex}`)
-      await fs.writeFile('/tmp/new.params', req.files.response.data)
-      await verifyResponse()
+      // await fs.writeFile('/tmp/new.params', req.file.response.data)
+      await verifyResponse({ filename: req.file.filename })
     } catch (e) {
       console.error('Error', e)
       res.status(422).send(e.toString())
+      return
     }
 
     try {
@@ -101,7 +105,7 @@ router.post('/response', async (req, res) => {
       // )
 
       console.log('Committing changes')
-      await fs.rename('/tmp/new.params', './snark_files/current.params')
+      await fs.rename(`/tmp/tornado/${req.file.filename}`, './server/snark_files/current.params')
       await Contribution.insertContributionInfo(
         req.body ? req.body.name || null : null,
         req.body ? req.body.company || null : null
@@ -115,4 +119,4 @@ router.post('/response', async (req, res) => {
   })
 })
 
-module.exports = router
\ No newline at end of file
+module.exports = router
diff --git a/server/index.js b/server/index.js
index 192a028..1b73e5d 100644
--- a/server/index.js
+++ b/server/index.js
@@ -5,7 +5,6 @@ const express = require('express')
 const bodyParser = require('body-parser')
 const morgan = require('morgan')
 const session = require('express-session')
-const fileUpload = require('express-fileupload')
 const { Nuxt, Builder } = require('nuxt')
 const config = require('../nuxt.config.js')
 const sessionsController = require('./controllers/sessions')
@@ -26,20 +25,15 @@ async function start() {
   } else {
     await nuxt.ready()
   }
+  app.use('/api', sessionsController)
+  app.use('/api', contributionController)
 
-  // Give nuxt middleware to express
-  app.use(nuxt.render)
-
-  app.use(fileUpload({}))
   app.use(bodyParser.urlencoded({ extended: true }))
   app.use(bodyParser.json())
 
-  const accessLogStream = fs.createWriteStream(
-    path.join(__dirname, 'access.log'),
-    {
-      flags: 'a'
-    }
-  )
+  const accessLogStream = fs.createWriteStream(path.join(__dirname, 'access.log'), {
+    flags: 'a'
+  })
   app.use(morgan('combined', { stream: accessLogStream }))
 
   app.use(
@@ -53,8 +47,9 @@ async function start() {
     res.locals.session = req.session
     next()
   })
-  app.use('/', sessionsController)
-  app.use('/', contributionController)
+
+  // Give nuxt middleware to express
+  app.use(nuxt.render)
 
   app.listen(port, host, () => {
     console.log(`Server is running on port ${port}.`)
diff --git a/server/snark_files/current.params b/server/snark_files/current.params
new file mode 100644
index 0000000..aaef3ef
Binary files /dev/null and b/server/snark_files/current.params differ
diff --git a/static/_nuxt/lib/phase2/phase2_bg.wasm b/static/_nuxt/lib/phase2/phase2_bg.wasm
new file mode 100644
index 0000000..14f9c46
Binary files /dev/null and b/static/_nuxt/lib/phase2/phase2_bg.wasm differ
diff --git a/yarn.lock b/yarn.lock
index 57cb190..ae2fc93 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1065,6 +1065,11 @@
     mustache "^2.3.0"
     stack-trace "0.0.10"
 
+"@open-wc/webpack-import-meta-loader@^0.4.1":
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/@open-wc/webpack-import-meta-loader/-/webpack-import-meta-loader-0.4.1.tgz#d4d165dd998ecfab6ab3dcd66456eadf62348af2"
+  integrity sha512-aP0jeEsBjnmNzhaCh8WHFL5cXzKd38a/1QU+IHwN49/xjwAUMqK7J12fTxaIZMdZ+Poe7bSz4+3zGKOcxbyM/w==
+
 "@types/color-name@^1.1.1":
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/@types/color-name/-/color-name-1.1.1.tgz#1c1261bbeaa10a8055bbc5d8ab84b7b2afc846a0"
@@ -1495,6 +1500,11 @@ anymatch@~3.1.1:
     normalize-path "^3.0.0"
     picomatch "^2.0.4"
 
+append-field@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/append-field/-/append-field-1.0.0.tgz#1e3440e915f0b1203d23748e78edd7b9b5b43e56"
+  integrity sha1-HjRA6RXwsSA9I3SOeO3XubW0PlY=
+
 aproba@^1.0.3, aproba@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
@@ -2005,6 +2015,14 @@ bulma@0.7.5:
   resolved "https://registry.yarnpkg.com/bulma/-/bulma-0.7.5.tgz#35066c37f82c088b68f94450be758fc00a967208"
   integrity sha512-cX98TIn0I6sKba/DhW0FBjtaDpxTelU166pf7ICXpCCuplHWyu6C9LYZmL5PEsnePIeJaiorsTEzzNk3Tsm1hw==
 
+busboy@^0.2.11:
+  version "0.2.14"
+  resolved "https://registry.yarnpkg.com/busboy/-/busboy-0.2.14.tgz#6c2a622efcf47c57bbbe1e2a9c37ad36c7925453"
+  integrity sha1-bCpiLvz0fFe7vh4qnDetNseSVFM=
+  dependencies:
+    dicer "0.2.5"
+    readable-stream "1.1.x"
+
 busboy@^0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/busboy/-/busboy-0.3.1.tgz#170899274c5bf38aae27d5c62b71268cd585fd1b"
@@ -2472,7 +2490,7 @@ concat-map@0.0.1:
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
   integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
 
-concat-stream@^1.5.0:
+concat-stream@^1.5.0, concat-stream@^1.5.2:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.2.tgz#904bdf194cd3122fc675c77fc4ac3d4ff0fd1a34"
   integrity sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==
@@ -3079,6 +3097,14 @@ detect-indent@^5.0.0:
   resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-5.0.0.tgz#3871cc0a6a002e8c3e5b3cf7f336264675f06b9d"
   integrity sha1-OHHMCmoALow+Wzz38zYmRnXwa50=
 
+dicer@0.2.5:
+  version "0.2.5"
+  resolved "https://registry.yarnpkg.com/dicer/-/dicer-0.2.5.tgz#5996c086bb33218c812c090bddc09cd12facb70f"
+  integrity sha1-WZbAhrszIYyBLAkL3cCc0S+stw8=
+  dependencies:
+    readable-stream "1.1.x"
+    streamsearch "0.1.2"
+
 dicer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/dicer/-/dicer-0.3.0.tgz#eacd98b3bfbf92e8ab5c2fdb71aaac44bb06b872"
@@ -5044,6 +5070,11 @@ is-wsl@^1.1.0:
   resolved "https://registry.yarnpkg.com/is-wsl/-/is-wsl-1.1.0.tgz#1f16e4aa22b04d1336b66188a66af3c600c3a66d"
   integrity sha1-HxbkqiKwTRM2tmGIpmrzxgDDpm0=
 
+isarray@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
+  integrity sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=
+
 isarray@1.0.0, isarray@^1.0.0, isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
@@ -5760,6 +5791,20 @@ ms@^2.1.1:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
   integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
 
+multer@^1.4.2:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/multer/-/multer-1.4.2.tgz#2f1f4d12dbaeeba74cb37e623f234bf4d3d2057a"
+  integrity sha512-xY8pX7V+ybyUpbYMxtjM9KAiD9ixtg5/JkeKUTD6xilfDv0vzzOFcCp4Ljb1UU3tSOM3VTZtKo63OmzOrGi3Cg==
+  dependencies:
+    append-field "^1.0.0"
+    busboy "^0.2.11"
+    concat-stream "^1.5.2"
+    mkdirp "^0.5.1"
+    object-assign "^4.1.1"
+    on-finished "^2.3.0"
+    type-is "^1.6.4"
+    xtend "^4.0.0"
+
 mustache@^2.3.0:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/mustache/-/mustache-2.3.2.tgz#a6d4d9c3f91d13359ab889a812954f9230a3d0c5"
@@ -7460,6 +7505,16 @@ read-pkg@^2.0.0:
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
+readable-stream@1.1.x:
+  version "1.1.14"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
+  integrity sha1-fPTFTvZI44EwhMY23SB54WbAgdk=
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "0.0.1"
+    string_decoder "~0.10.x"
+
 readable-stream@^3.1.1:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.5.0.tgz#465d70e6d1087f6162d079cd0b5db7fbebfd1606"
@@ -8336,6 +8391,11 @@ string_decoder@^1.0.0, string_decoder@^1.1.1:
   dependencies:
     safe-buffer "~5.2.0"
 
+string_decoder@~0.10.x:
+  version "0.10.31"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
+  integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
+
 string_decoder@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
@@ -8728,7 +8788,7 @@ type-fest@^0.8.1:
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.8.1.tgz#09e249ebde851d3b1e48d27c105444667f17b83d"
   integrity sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==
 
-type-is@~1.6.17, type-is@~1.6.18:
+type-is@^1.6.4, type-is@~1.6.17, type-is@~1.6.18:
   version "1.6.18"
   resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.18.tgz#4e552cd05df09467dcbc4ef739de89f2cf37c131"
   integrity sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==