[3082] How to use Vue.extend to inject Vue instance into a component in Nuxt?

I am trying to create a ProseMirror editor with Nuxt.js on which my users can insert certain components into their inline text.

I should be able to render a new component node in NodeView using Vue.extend(). The problem is, my component needs to communicate with this.$store, and a newly-initialized Vue instance does not have it. Therefore, rendering the component with a new Vue instance would cause an error that suggests something like this.$store does not exist.

Is there anyway that I could access the Vue instance created by Nuxt.js and thereby call Vue.extend() to pass the Vuex instance to my component?

Editor.vue: https://github.com/v2land/v2land-frontend/blob/feature/comment-editor/components/Comment/Editor.vue Event NodeView: https://github.com/v2land/v2land-frontend/blob/feature/comment-editor/components/Comment/View/Event.js