Use concurrently to ensure Purescript is compiled

Author: danieljharvey

package.json

@@ -9,13 +9,16 @@
  },
  "devDependencies": {
  "parcel-bundler": "^1.10.3",
+ "concurrently": "^4.1.0",
  "psc-package": "3.0.1",
  "pscid": "2.4.0",
- "purescript": "0.12.1",
- "pulp": "12.3.0"
+ "pulp": "12.3.0",
+ "purescript": "0.12.1"
  },
  "scripts": {
- "start": "parcel ./src/index.html",
+ "start:parcel": "parcel ./src/index.html",
+ "start:build": "pulp -w build",
+ "start": "concurrently \"yarn start:parcel\" \"yarn start:build\"",
  "purs:install": "psc-package install",
  "purs:build": "psc-package build",
  "build": "parcel build ./src/index.html",