yii2-vueapp is a Vue.js helper for create Vue app in Yii 2 without webpack or similar.
All assets (JavaScript, CSS and templates) are injected directly into HTML. The extension provides functionality to split the code (JavaScript, CSS and templates) and to load parameters from HTML root element.
Very strange package. If you use it, you lose the most powerfull feature of VueJS, separate components in. vue files. If you want realy SPA-front with Vue.js, this package is not for you.