Clean up code messes and enhance the UI/UX of the creation and upload process in an ASP.NET Core and Nuxt.js application using Vuetify and mixins. Learn how to implement sharing functionality, add a close button, improve submission steps, and create an index page for collections. Explore Vue.js mixins to reuse component logic across the application. Follow along with the Tricking Library project, accessing the source code on GitHub and joining the community on Discord for further discussions.