diff --git a/.circleci/config.yml b/.circleci/config.yml
index 7e245a37..4c88ec55 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,47 +1,24 @@
 version: 2
 
-docker_defaults: &docker_defaults
+defaults: &defaults
+  working_directory: ~/ledger-live-desktop
   docker:
-    - image: circleci/node:9.5
+    - image: circleci/node:8.11.3-stretch-browsers
 
 jobs:
   build:
-    <<: *docker_defaults
-    branches:
-      ignore:
-        - gh-pages
+    <<: *defaults
     steps:
       - checkout
       - restore_cache:
-          name: Restore Yarn Package Cache
           keys:
-            - v2-yarn-packages-{{ checksum "yarn.lock" }}
-      - run:
-          name: Install Dependencies
-          command: bash scripts/install-ci-deps.sh
+            - v7-yarn-packages-{{ checksum "yarn.lock" }}
+      - run: yarn install
       - save_cache:
-          name: Save Yarn Package Cache
-          key: v2-yarn-packages-{{ checksum "yarn.lock" }}
+          key: v7-yarn-packages-{{ checksum "yarn.lock" }}
           paths:
-            - node_modules/
-      - run:
-          name: Lint
-          command: yarn lint
-      - run:
-          name: Prettier
-          command: ./node_modules/.bin/prettier -l "{src,webpack,.storybook}/**/*.js"
-      - run:
-          name: Flow
-          command: yarn flow --quiet
-      # - run:
-      #     name: Test
-      #     command: yarn test
-      # - run:
-      #     name: Build
-      #     command: yarn dist:dir
-      # - run:
-      #     name: Generate build stats
-      #     command: "du -h dist | sort -h > /tmp/build-stats.txt"
-      # - store_artifacts:
-      #     path: /tmp/build-stats.txt
-      #     destination: build-stats.txt
+            - node_modules
+      - run: yarn lint
+      - run: ./node_modules/.bin/prettier -l "{src,webpack,.storybook,static/i18n}/**/*.js"
+      - run: yarn flow --quiet
+      - run: yarn release
diff --git a/package.json b/package.json
index 74769625..d2e5b857 100644
--- a/package.json
+++ b/package.json
@@ -7,20 +7,19 @@
   "author": "Ledger",
   "license": "MIT",
   "scripts": {
-    "compile": "bash ./scripts/compile.sh",
-    "dist:dir": "bash ./scripts/dist-dir.sh",
+    "postinstall": "bash ./scripts/postinstall.sh",
+    "start": "bash ./scripts/start.sh",
+    "release": "bash ./scripts/release.sh",
     "dist": "bash ./scripts/dist.sh",
-    "test": "jest",
-    "flow": "flow",
+    "dist:dir": "bash ./scripts/dist-dir.sh",
+    "compile": "bash ./scripts/compile.sh",
     "lint": "eslint src webpack .storybook",
-    "ci": "yarn lint && yarn flow && yarn prettier",
-    "postinstall": "bash ./scripts/postinstall.sh",
+    "flow": "flow",
     "prettier": "prettier --write \"{src,webpack,.storybook,static/i18n}/**/*.{js,json}\"",
-    "publish-storybook": "bash ./scripts/publish-storybook.sh",
-    "release": "bash ./scripts/release.sh",
-    "start": "bash ./scripts/start.sh",
+    "ci": "yarn lint && yarn flow && yarn prettier",
     "storybook": "NODE_ENV=development STORYBOOK_ENV=1 start-storybook -s ./static -p 4444",
-    "reset-files": "bash ./scripts/reset-files.sh"
+    "publish-storybook": "bash ./scripts/legacy/publish-storybook.sh",
+    "reset-files": "bash ./scripts/legacy/reset-files.sh"
   },
   "electronWebpack": {
     "title": true,
@@ -31,9 +30,6 @@
       "webpackConfig": "./webpack/main.config.js"
     }
   },
-  "resolutions": {
-    "webpack-sources": "1.0.1"
-  },
   "dependencies": {
     "@ledgerhq/hw-app-btc": "4.20.0",
     "@ledgerhq/hw-app-eth": "^4.14.0",
diff --git a/scripts/compile.sh b/scripts/compile.sh
old mode 100644
new mode 100755
index a47eac75..fe1bb191
--- a/scripts/compile.sh
+++ b/scripts/compile.sh
@@ -2,12 +2,38 @@
 
 set -e
 
-GIT_REVISION=$(git rev-parse HEAD)
+# shellcheck disable=SC1091
+source scripts/helpers/format.sh
+# shellcheck disable=SC1091
+source scripts/helpers/run-job.sh
+
+if [ "$GIT_REVISION" == "" ]; then
+  GIT_REVISION=$(git rev-parse HEAD)
+fi
 export GIT_REVISION
-export SENTRY_URL=https://db8f5b9b021048d4a401f045371701cb@sentry.io/274561
-export JOBS=max
 
-rm -rf ./node_modules/.cache dist
-yarn
-NODE_ENV=production yarn run webpack-cli --mode production --config webpack/internals.config.js
-NODE_ENV=production yarn run electron-webpack
+export SENTRY_URL='https://db8f5b9b021048d4a401f045371701cb@sentry.io/274561'
+export JOBS='max'
+
+echo
+formatEnvVar 'GIT_REVISION'
+formatEnvVar 'SENTRY_URL'
+echo
+
+runJob \
+  "rm -rf dist" \
+  "clearing dist..." \
+  "dist cleared" \
+  "failed to clear dist"
+
+runJob \
+  "NODE_ENV=production yarn run webpack-cli --mode production --config webpack/internals.config.js" \
+  "building internal bundle..." \
+  "internal bundle built" \
+  "failed to build internal bundle"
+
+runJob \
+  "NODE_ENV=production yarn run electron-webpack" \
+  "building main & renderer bundles..." \
+  "main & renderer bundles built" \
+  "failed to build main & renderer bundles"
diff --git a/scripts/dist-dir.sh b/scripts/dist-dir.sh
old mode 100644
new mode 100755
index 64097c15..9a61b12d
--- a/scripts/dist-dir.sh
+++ b/scripts/dist-dir.sh
@@ -1,3 +1,18 @@
 #!/bin/bash
 
-yarn compile && DEBUG=electron-builder electron-builder --dir -c.compression=store -c.mac.identity=null
+set -e
+
+# shellcheck disable=SC1091
+source scripts/helpers/run-job.sh
+
+# shellcheck disable=SC1091
+source scripts/helpers/display-env.sh
+
+yarn compile
+
+runJob \
+  "DEBUG=electron-builder electron-builder --dir -c.compression=store -c.mac.identity=null" \
+  "building app..." \
+  "app built successfully" \
+  "failed to build app" \
+  "verbose"
diff --git a/scripts/dist.sh b/scripts/dist.sh
index 51f4fcee..109af19d 100755
--- a/scripts/dist.sh
+++ b/scripts/dist.sh
@@ -1,16 +1,41 @@
 #!/bin/bash
 
+set -e
+
+export JOBS=max
+
+# shellcheck disable=SC1091
+source scripts/helpers/run-job.sh
+
+# shellcheck disable=SC1091
+source scripts/helpers/display-env.sh
+
 # hilarious fix: to make linux icon we have to remove icon.png from build folder
 # some context:
 #   - https://github.com/electron-userland/electron-builder/issues/2577
 #   - https://github.com/electron-userland/electron-builder/issues/2269
 if [[ $(uname) == 'Linux' ]]; then
-  mv build/icon.png /tmp
+  runJob \
+    "mv build/icon.png /tmp" \
+    "dirty fix to handle linux icon..." \
+    "successfully applied dirty fix to handle linux icon" \
+    "failed to apply dirty fix to handle linux icon"
 fi
 
-yarn compile && DEBUG=electron-builder electron-builder
+yarn compile
+
+runJob \
+  "DEBUG=electron-builder electron-builder" \
+  "building and packaging app..." \
+  "app built and packaged successfully" \
+  "failed to build app" \
+  "verbose"
 
 # hilarious fix continuation: put back the icon where it was
 if [[ $(uname) == 'Linux' ]]; then
-  mv /tmp/icon.png build
+  runJob \
+    "mv /tmp/icon.png build" \
+    "cleaning dirty fix to handle linux icon..." \
+    "successfully applied clean dirty fix to handle linux icon" \
+    "failed to apply clean dirty fix to handle linux icon"
 fi
diff --git a/scripts/hash-utils.sh b/scripts/hash-utils.sh
deleted file mode 100644
index 07b1ab73..00000000
--- a/scripts/hash-utils.sh
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/bin/bash
-
-function GET_HASH_PATH {
-  HASH_NAME=$1
-  echo "./node_modules/.cache/LEDGER_HASH_$HASH_NAME.hash"
-}
-
-function GET_HASH {
-  HASH_NAME=$1
-  HASH_PATH=$(GET_HASH_PATH "$HASH_NAME")
-  if [ ! -e "$HASH_PATH" ]; then
-    echo ''
-  else
-    HASH_CONTENT=$(cat "$HASH_PATH")
-    echo "$HASH_CONTENT"
-  fi
-}
-
-function SET_HASH {
-  HASH_NAME=$1
-  HASH_CONTENT=$2
-  echo "setting hash $HASH_NAME to $HASH_CONTENT"
-  HASH_PATH=$(GET_HASH_PATH "$HASH_NAME")
-  mkdir -p ./node_modules/.cache
-  echo "$HASH_CONTENT" > "$HASH_PATH"
-}
diff --git a/scripts/helpers/display-env.sh b/scripts/helpers/display-env.sh
new file mode 100644
index 00000000..2407d0f9
--- /dev/null
+++ b/scripts/helpers/display-env.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# shellcheck disable=SC1091
+source scripts/helpers/format.sh
+
+appVersion=$(grep version package.json | sed 's/.*"\(.*\)",$/\1/')
+
+echo
+printf " │ \\e[4;1m%s\\e[0;0m\\n"  "Ledger Live Desktop - ${appVersion}"
+printf " │ \\e[1;30m%s\\e[1;0m\\n"        "$(uname -srmo)"
+printf " │ \\e[2;1mcommit \\e[0;33m%s\\e[0;0m\\n" "$(git rev-parse HEAD)"
+echo
+
+formatEnvVar "CI"
+formatEnvVar "NODE_ENV"
+formatEnvVar "JOBS"
+
+echo
+formatGeneric "node" "$(node --version)"
+echo
diff --git a/scripts/helpers/format.sh b/scripts/helpers/format.sh
new file mode 100644
index 00000000..8a2b826f
--- /dev/null
+++ b/scripts/helpers/format.sh
@@ -0,0 +1,48 @@
+#!/bin/bash
+
+colSize=20
+
+function formatJobTitle {
+  echo "[$1]"
+  echo
+}
+
+function formatEnvVar {
+  key=$1
+  value=$(eval echo \$"${key}")
+  color="32"
+  if   [ "$value" == "" ];  then color="34"; value="unset"
+  elif [ "$value" == "1" ]; then color="32"
+  elif [ "$value" == "0" ]; then color="35"
+  else value="'$value'"
+  fi
+  printf " %-${colSize}s\\e[2;${color}m%s\\e[1;0m\\n" "$key" "$value"
+}
+
+function formatGeneric {
+  printf " %-${colSize}s\\e[0;2m%s\\e[0m\\n" "$1" "$2"
+}
+
+function formatDiscret {
+  printf "\\e[2;34m%s\\e[2;0m\\n" "$1"
+}
+
+function formatSkip {
+  printf "\\e[2;34m[-] skipping %s (%s)\\e[0;0m\\n" "$1" "$2"
+}
+
+function clearLine {
+  echo -en "\\r\\e[0K"
+}
+
+function formatError {
+  printf "\\e[0;31m[✘] %s\\e[0;0m\\n" "$1"
+}
+
+function formatProgress {
+  printf "\\e[0;35m[⬇] %s\\e[0;0m" "$1"
+}
+
+function formatSuccess {
+  printf "\\e[0;36m[✔] %s\\e[0;0m\\n" "$1"
+}
diff --git a/scripts/helpers/hash.sh b/scripts/helpers/hash.sh
new file mode 100644
index 00000000..3f52f5d0
--- /dev/null
+++ b/scripts/helpers/hash.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# shellcheck disable=SC1091
+source scripts/helpers/format.sh
+
+function _getHashPath {
+  HASH_NAME=$1
+  echo "./node_modules/.cache/LEDGER_HASH_$HASH_NAME.hash"
+}
+
+function getHash {
+  HASH_NAME=$1
+  HASH_PATH=$(_getHashPath "$HASH_NAME")
+  if [ ! -e "$HASH_PATH" ]; then
+    echo ''
+  else
+    HASH_CONTENT=$(cat "$HASH_PATH")
+    echo "$HASH_CONTENT"
+  fi
+}
+
+function setHash {
+  HASH_NAME=$1
+  HASH_CONTENT=$2
+  formatSuccess "$HASH_NAME hash set to $HASH_CONTENT"
+  HASH_PATH=$(_getHashPath "$HASH_NAME")
+  mkdir -p ./node_modules/.cache
+  echo "$HASH_CONTENT" > "$HASH_PATH"
+}
+
+function hashDiffers {
+  cachedHash=$(getHash "$1")
+  hash=$2
+  if [ "$cachedHash" == "$hash" ]; then
+    return 1
+  else
+    return 0
+  fi
+}
diff --git a/scripts/helpers/run-job.sh b/scripts/helpers/run-job.sh
new file mode 100644
index 00000000..89b03f4b
--- /dev/null
+++ b/scripts/helpers/run-job.sh
@@ -0,0 +1,62 @@
+#!/bin/bash
+
+# shellcheck disable=SC1091
+source scripts/helpers/format.sh
+
+operatingSystem=$(uname -s)
+if [ "$operatingSystem" != "Linux" ] && [ "$operatingSystem" != "Darwin" ]; then
+  operatingSystem="Windows"
+fi
+
+function runJob {
+
+  local job=$1
+  local progressMsg=$2
+  local successMsg=$3
+  local errMsg=$4
+  local logLevel=$5
+
+  local tmpScript
+  local tmpErrFile
+  local childPid
+  local returnCode
+
+  # let's absolutely don't take care of this fake os
+  if [ "$operatingSystem" == "Windows" ]; then
+    tmpScript=$(mktemp)
+    echo "$job" > "$tmpScript"
+    bash "$tmpScript"
+    rm "$tmpScript"
+    return $?
+  fi
+
+  tmpErrFile=$(mktemp)
+
+  formatProgress "$progressMsg"
+
+  if [ "$logLevel" == "verbose" ]; then
+    echo
+    echo "$job" | bash &
+  else
+    echo "$job" | bash >/dev/null 2>"$tmpErrFile" &
+  fi
+
+  childPid=$!
+
+  # prevent set -e to exit if child fail
+  wait $childPid && returnCode=$? || returnCode=$?
+
+  if [ "$logLevel" != "verbose" ]; then
+    clearLine
+  fi
+
+  if [ $returnCode -eq 0 ]; then
+    formatSuccess "$successMsg"
+  else
+    formatError "$errMsg"
+    formatError "$(cat "$tmpErrFile")"
+  fi
+
+  rm "$tmpErrFile"
+  return $returnCode
+}
diff --git a/scripts/install-ci-deps.sh b/scripts/install-ci-deps.sh
deleted file mode 100644
index 3ed79367..00000000
--- a/scripts/install-ci-deps.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/bin/bash
-
-# shellcheck disable=SC1091
-source scripts/hash-utils.sh
-
-PACKAGE_JSON_HASH=$(md5sum package.json | cut -d ' ' -f 1)
-CACHED_PACKAGE_JSON_HASH=$(GET_HASH 'package.json')
-
-if [ "$CACHED_PACKAGE_JSON_HASH" == "$PACKAGE_JSON_HASH" ]; then
-  echo "> Skipping yarn install"
-else
-  yarn install
-  SET_HASH 'package.json' "$PACKAGE_JSON_HASH"
-fi
diff --git a/scripts/live-cli.js b/scripts/live-cli.js
deleted file mode 100644
index b08b40c4..00000000
--- a/scripts/live-cli.js
+++ /dev/null
@@ -1,135 +0,0 @@
-//                         This is a work in progress
-//             The goal is to provide a cli which allow interact
-//                with device & libcore for faster iterations
-
-require('babel-polyfill')
-require('babel-register')
-
-const chalk = require('chalk')
-const inquirer = require('inquirer')
-const path = require('path')
-const TransportNodeHid = require('@ledgerhq/hw-transport-node-hid').default
-
-const { serializeAccounts, encodeAccount, decodeAccount } = require('../src/reducers/accounts')
-const { doSignAndBroadcast } = require('../src/commands/libcoreSignAndBroadcast')
-
-const coreHelper = require('../src/helpers/libcore')
-const withLibcore = require('../src/helpers/withLibcore').default
-
-if (!process.env.LEDGER_LIVE_SQLITE_PATH) {
-  throw new Error('you must define process.env.LEDGER_LIVE_SQLITE_PATH first')
-}
-
-const LOCAL_DIRECTORY_PATH = path.resolve(process.env.LEDGER_LIVE_SQLITE_PATH, '../')
-
-gimmeDeviceAndLibCore(async ({ device, core, njsWalletPool }) => {
-  const raw = require(path.join(LOCAL_DIRECTORY_PATH, 'accounts.json')) // eslint-disable-line import/no-dynamic-require
-  const accounts = serializeAccounts(raw.data)
-  const accountToUse = await chooseAccount('Which account to use?', accounts)
-  await actionLoop({ account: accountToUse, accounts, core, njsWalletPool, device })
-  process.exit(0)
-})
-
-async function actionLoop(props) {
-  try {
-    const { account, accounts, core, njsWalletPool, device } = props
-    const actionToDo = await chooseAction(`What do you want to do with [${account.name}] ?`)
-    if (actionToDo === 'send funds') {
-      const transport = await TransportNodeHid.open(device.path)
-      const accountToReceive = await chooseAccount('To which account?', accounts)
-      const receiveAddress = await getFreshAddress({
-        account: accountToReceive,
-        core,
-        njsWalletPool,
-      })
-      console.log(`the receive address is ${receiveAddress}`)
-      const rawAccount = encodeAccount(account)
-      console.log(`trying to sign and broadcast...`)
-      const rawOp = await doSignAndBroadcast({
-        account: rawAccount,
-        transaction: {
-          amount: 4200000,
-          recipient: receiveAddress,
-          feePerByte: 16,
-          isRBF: false,
-        },
-        deviceId: device.path,
-        core,
-        transport,
-      })
-      console.log(rawOp)
-    } else if (actionToDo === 'sync') {
-      console.log(`\nLaunch sync...\n`)
-      const rawAccount = encodeAccount(account)
-      const syncedAccount = await coreHelper.syncAccount({ rawAccount, core, njsWalletPool })
-      console.log(`\nEnd sync...\n`)
-      console.log(`updated account: `, displayAccount(syncedAccount, 'red'))
-    } else if (actionToDo === 'quit') {
-      return true
-    }
-  } catch (err) {
-    console.log(`x Something went wrong`)
-    console.log(err)
-    process.exit(1)
-  }
-  return actionLoop(props)
-}
-
-async function chooseInList(msg, list, formatItem = i => i) {
-  const choices = list.map(formatItem)
-  const { choice } = await inquirer.prompt([
-    {
-      type: 'list',
-      name: 'choice',
-      message: msg,
-      choices,
-    },
-  ])
-  const index = choices.indexOf(choice)
-  return list[index]
-}
-
-async function chooseAction(msg) {
-  return chooseInList(msg, ['sync', 'send funds', 'quit'])
-}
-
-function chooseAccount(msg, accounts) {
-  return chooseInList(msg, accounts, acc => displayAccount(acc))
-}
-
-async function gimmeDeviceAndLibCore(cb) {
-  withLibcore((core, njsWalletPool) => {
-    TransportNodeHid.listen({
-      error: () => {},
-      complete: () => {},
-      next: async e => {
-        if (!e.device) {
-          return
-        }
-        if (e.type === 'add') {
-          const { device } = e
-          cb({ device, core, njsWalletPool })
-        }
-      },
-    })
-  })
-}
-
-function displayAccount(acc, color = null) {
-  const isRawAccount = typeof acc.lastSyncDate === 'string'
-  if (isRawAccount) {
-    acc = decodeAccount(acc)
-  }
-  const str = `[${acc.name}] ${acc.isSegwit ? '' : '(legacy) '}${acc.unit.code} ${acc.balance} - ${
-    acc.operations.length
-  } txs`
-  return color ? chalk[color](str) : str
-}
-
-async function getFreshAddress({ account, core, njsWalletPool }) {
-  const njsAccount = await coreHelper.getNJSAccount({ account, njsWalletPool })
-  const unsub = await core.syncAccount(njsAccount)
-  unsub()
-  const rawAddresses = await njsAccount.getFreshPublicAddresses()
-  return rawAddresses[0]
-}
diff --git a/scripts/parse-accounts.js b/scripts/parse-accounts.js
deleted file mode 100644
index f5b0b8c2..00000000
--- a/scripts/parse-accounts.js
+++ /dev/null
@@ -1,63 +0,0 @@
-//                Utility to human-read the accounts.json file
-//           You have to pass it in parameter, because the location
-//                        differ depending on the OS.
-
-const {
-  formatCurrencyUnit,
-  getCryptoCurrencyById,
-} = require('@ledgerhq/live-common/lib/helpers/currencies')
-const chalk = require('chalk')
-const padStart = require('lodash/padStart')
-const padEnd = require('lodash/padEnd')
-
-const { argv } = process
-
-const [, , FILE_PATH] = argv
-
-if (!FILE_PATH) {
-  console.log(`You need to specify a file`)
-  process.exit(1)
-}
-
-const { data: wrappedAccounts } = require(FILE_PATH) // eslint-disable-line
-
-const str = wrappedAccounts
-  .map(({ data: account }) => {
-    const currency = getCryptoCurrencyById(account.currencyId)
-    const unit = currency.units[0]
-    const headline = `${account.isSegwit ? '[SEGWIT]' : '[NOT SEGWIT]'} ${account.name} | ${
-      account.id
-    } | ${account.path} | balance: ${formatCurrencyUnit(unit, account.balance, {
-      showCode: true,
-      alwaysShowSign: true,
-    })}`
-    return [
-      headline,
-      headline
-        .split('')
-        .map(() => '-')
-        .join(''),
-      account.operations
-        .map(op => {
-          const opType = op.amount < 0 ? 'SEND' : 'RECEIVE'
-          return [
-            padEnd(opType, 8),
-            op.date.substr(0, 10),
-            chalk[opType === 'SEND' ? 'red' : 'green'](
-              padStart(
-                formatCurrencyUnit(unit, op.amount, {
-                  showCode: true,
-                  alwaysShowSign: true,
-                }),
-                15,
-              ),
-            ),
-            op.hash,
-          ].join(' ')
-        })
-        .join('\n'),
-    ].join('\n')
-  })
-  .join('\n\n')
-
-console.log(str)
diff --git a/scripts/postinstall.sh b/scripts/postinstall.sh
index eeed781a..0d302214 100755
--- a/scripts/postinstall.sh
+++ b/scripts/postinstall.sh
@@ -1,45 +1,85 @@
 #!/bin/bash
 
+set -e
+
+export JOBS=max
+
+# shellcheck disable=SC1091
+source scripts/helpers/display-env.sh
 # shellcheck disable=SC1091
-source scripts/hash-utils.sh
+source scripts/helpers/format.sh
+# shellcheck disable=SC1091
+source scripts/helpers/hash.sh
+# shellcheck disable=SC1091
+source scripts/helpers/run-job.sh
+
+latestFlowTypedCommitHash=''
 
-function MAIN {
-  if ! $CI; then
-    REBUILD_ELECTRON_NATIVE_DEPS
+function main {
+
+  # native dependencies
+
+  if hashDiffers yarn.lock "$(getYarnHash)"; then
+    rebuildElectronNativeDeps
+  else
+    formatSkip "native module build" "already up-to-date"
   fi
-  INSTALL_FLOW_TYPED
-}
 
-function INSTALL_FLOW_TYPED {
-  LATEST_FLOW_TYPED_COMMIT_HASH=$(curl --silent --header "Accept: application/vnd.github.VERSION.sha" --location https://api.github.com/repos/flowtype/flow-typed/commits/master)
-  CURRENT_FLOW_TYPED_HASH=$(GET_HASH 'flow-typed')
-  if [ "$LATEST_FLOW_TYPED_COMMIT_HASH" == "$CURRENT_FLOW_TYPED_HASH" ]; then
-    echo "> Flow-typed definitions are up to date. Skipping"
+  # flow-typed
+
+  formatProgress "Checking if flow-typed definitions are up-to-date..."
+  latestFlowTypedCommitHash=$(curl --silent --header "Accept: application/vnd.github.VERSION.sha" --location https://api.github.com/repos/flowtype/flow-typed/commits/master)
+  clearLine
+
+  if [[ $latestFlowTypedCommitHash =~ ^\{ ]]; then
+    formatError "Failed to retrieve flow-typed definitions"
+    echo "$latestFlowTypedCommitHash"
+    exit 1
   else
-    echo "> Installing flow-typed defs"
-    flow-typed install -s --overwrite
-    echo "> Removing broken flow definitions"
-    rm flow-typed/npm/{react-i18next_v7.x.x.js,styled-components_v3.x.x.js,redux_*,winston*}
-    SET_HASH 'flow-typed' "$LATEST_FLOW_TYPED_COMMIT_HASH"
+    if hashDiffers flow-typed "$latestFlowTypedCommitHash"; then
+      installFlowTyped
+    else
+      formatSkip "flow-typed installation" "already up-to-date"
+    fi
   fi
+
+  echo
+
 }
 
-function REBUILD_ELECTRON_NATIVE_DEPS {
-  # for strange/fancy os-es
+function installFlowTyped {
+  runJob \
+    "flow-typed install -s --overwrite" \
+    "Installing flow-typed definitions..." \
+    "Installed flow-typed definitions" \
+    "Failed installing flow-typed definitions"
+
+  runJob \
+    "rm flow-typed/npm/{react-i18next_v7.x.x.js,styled-components_v3.x.x.js,redux_*,winston*}" \
+    "Removing broken flow-typed definitions" \
+    "Removed broken flow-typed definitions" \
+    "Failed removing broken flow-typed definitions"
+
+  setHash flow-typed "$latestFlowTypedCommitHash"
+}
+
+function rebuildElectronNativeDeps {
+  runJob \
+    "DEBUG=electron-builder electron-builder install-app-deps" \
+    "Building native electron dependencies..." \
+    "Successfully builded native modules for electron" \
+    "Build failed" \
+    "verbose"
+  setHash yarn.lock "$(getYarnHash)"
+}
+
+function getYarnHash {
   if [[ $(uname) == 'Darwin' ]]; then
-    PACKAGE_JSON_HASH=$(md5 package.json | cut -d ' ' -f 1)
-  else
-    # for normal os-es
-    PACKAGE_JSON_HASH=$(md5sum package.json | cut -d ' ' -f 1)
-  fi
-  CACHED_PACKAGE_JSON_HASH=$(GET_HASH 'package.json')
-  if [ "$CACHED_PACKAGE_JSON_HASH" == "$PACKAGE_JSON_HASH" ]; then
-    echo "> Electron native deps are up to date. Skipping"
+    yarnHash=$(md5 yarn.lock | cut -d ' ' -f 1)
   else
-    echo "> Installing electron native deps"
-    DEBUG=electron-builder electron-builder install-app-deps
-    SET_HASH 'package.json' "$PACKAGE_JSON_HASH"
+    yarnHash=$(md5sum yarn.lock | cut -d ' ' -f 1)
   fi
+  echo "$yarnHash"
 }
 
-MAIN
+main
diff --git a/scripts/release.sh b/scripts/release.sh
index 29efdf21..fb3afae7 100755
--- a/scripts/release.sh
+++ b/scripts/release.sh
@@ -2,6 +2,22 @@
 
 set -e
 
+# shellcheck disable=SC1091
+source scripts/helpers/run-job.sh
+
+# shellcheck disable=SC1091
+source scripts/helpers/display-env.sh
+
+if [ "$(git rev-parse --abbrev-ref HEAD)" != "master" ]; then
+  echo "You are not on master. Exiting properly. (CI)"
+  exit 0
+fi
+
+if ! git describe --exact-match --tags 2>/dev/null >/dev/null; then
+  echo "You are not on a tag. Exiting properly. (CI)"
+  exit 0
+fi
+
 if [ -z "$GH_TOKEN" ]; then
   echo "GH_TOKEN is unset. can't release" >&2
   exit 1
@@ -21,4 +37,10 @@ fi
 # TODO check if local git HEAD is EXACTLY our remote master HEAD
 
 yarn compile
-DEBUG=electron-builder yarn run electron-builder build --publish always
+
+runJob \
+  "DEBUG=electron-builder electron-builder build --publish always" \
+  "building, packaging and publishing app..." \
+  "app built, packaged and published successfully" \
+  "failed to build app" \
+  "verbose"
diff --git a/scripts/reset-files.sh b/scripts/reset-files.sh
old mode 100644
new mode 100755
diff --git a/scripts/start.sh b/scripts/start.sh
index 01a7084e..3bb0aa45 100755
--- a/scripts/start.sh
+++ b/scripts/start.sh
@@ -1,5 +1,8 @@
 #!/bin/bash
 
+# shellcheck disable=SC1091
+source scripts/helpers/display-env.sh
+
 concurrently --raw --kill-others \
   "cross-env NODE_ENV=development webpack-cli --mode development --watch --config webpack/internals.config.js" \
   "cross-env NODE_ENV=development electron-webpack dev"
diff --git a/yarn.lock b/yarn.lock
index a7acbc9c..9c534274 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -14712,13 +14712,20 @@ webpack-merge@^4.1.2:
   dependencies:
     lodash "^4.17.5"
 
-webpack-sources@1.0.1, webpack-sources@^1.0.1, webpack-sources@^1.1.0:
+webpack-sources@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.0.1.tgz#c7356436a4d13123be2e2426a05d1dad9cbe65cf"
   dependencies:
     source-list-map "^2.0.0"
     source-map "~0.5.3"
 
+webpack-sources@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.1.0.tgz#a101ebae59d6507354d71d8013950a3a8b7a5a54"
+  dependencies:
+    source-list-map "^2.0.0"
+    source-map "~0.6.1"
+
 webpack@^3.11.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.12.0.tgz#3f9e34360370602fcf639e97939db486f4ec0d74"