How Quasar-cli uses third-party plugins?

[remmai]

I want to use v-viewer plugin (picture viewer, Vue-cli plugin) on Quasar-Cli,
However, there is no documentation on how to load third-party plugins on Quasar-cli.
At the same time, I couldn’t find the answer I wanted on Baidu.
So came to the official forum to find a solution.
If you can help me, thank you very much.
[This is using Google Machine Translation, please forgive me for my bad English.]

[remmai]

I imitated the writing of boot/i18n.js,
Successfully loaded my third-party plugin,
23333 :>

[rstoenescu]

Use a boot file. https://quasar.dev/quasar-cli/cli-documentation/boot-files