You got a crowdin account or are willing to create one, and you want to help to translate a tiny free and open source Android app?
It's just ten strings, and the project is totally non-profit. The app enables you to block unwanted content (like malware domains, trackers and ads)
system-wide. Depends on you, how you use it. You do not need root.
Join here: https://crowdin.com/project/personaldnsfilter
Here is our XDA thread LINK
where you will get mentioned (and get a link if you wish).