I found bringing uncompiled Bootstrap into my Vue.js app a bit tricky, so here is how I did it. I did not want to modify the webpack config files. I wanted to create a stylesheet manifest to import stylesheets and easily override bootstrap variables.
# clone this repo
# install Node if you haven't yet: https://nodejs.org/
# get into the directory of this app and install dependencies
npm install --global vue-cli
npm install
# start server
npm run dev
# Here's how I did everything.
# Install Vue.js
npm install --global vue-cli
# Initialize your project, answer questions
vue init webpack my-vue-project
# Install dependancies
cd my-vue-project
npm install
npm install node-sass --save-dev
npm install sass-loader --save-dev
npm install pug --save-dev
npm install bootstrap-sass --save-dev
npm install vue-strap --save-dev
# Setup your app.scss file as a stylesheet manifest
mkdir src/assets/styles && touch src/assets/styles/app.scss
# Duplicate and comment out bootstrap variables for easy overriding
awk '{print "//" $0}' node_modules/bootstrap-sass/assets/stylesheets/bootstrap/_variables.scss > src/assets/styles/bootstrap-variable-overrides.scss
# Import app.scss in the file `App.vue` by pasting the following code
<style lang="scss">
@import './assets/styles/app.scss';
</style>
# In your .vue files you may use pug for html pre-processing
<template lang="pug">…</template>
# Set up app.scss by pasting this stuff in it
$icon-font-path: "~bootstrap-sass/assets/fonts/bootstrap/";
@import '~bootstrap-sass/assets/stylesheets/_bootstrap.scss';
@import 'bootstrap-variable-overrides';
@import 'overrides';
# Start your server from the command line
npm run dev
Done.