While I was writing the last lines of code for this chapter and checking the page, at one point I got stuck looking at this picture:

A lot of cats looking at me and asking: will this chapter get to its end at some point?

I even paused the application to have a better look at this picture (yes, when you pause the Pomodoro application during resting time, the picture will pause as well because the cache-buster timestamp is not being updated anymore). Doesn't it seem like these cats are asking us to get some rest? Also, the amount of them is pretty close to the number of things that we've learned in this chapter!

In this chapter, you learned how the plugins system work with Vue.js. We used an existing resource plugin to attach the server-side behavior to our shopping list application. Now we can create, delete, and update our shopping lists.

We have also created our own plugin! Our plugin is able to produce sound that can help in concentrating during the working period. Not only have...