Sources:
- https://github.com/ropensci/hunspell/tree/master/inst/dict
- https://extensions.libreoffice.org/extensions/english-dictionaries/2018-11.01
- https://extensions.libreoffice.org/en/extensions/show/english-dictionaries

```
wget https://extensions.libreoffice.org/assets/downloads/41/1669872021/dict-en-20221201_lo.oxt  # .zip file
unzip dict-en-20221201_lo.oxt
```