Greasy Fork is available in English.
Add "Translate tweet with DeepL" button
< Feedback on DeepL Twitter translation
Are you talking about the translation with the DeepL API (direct translation under the tweet) or the translation with DeepL opening in a new tab ?
DeepL API
Added an option to disable translation of hashtags in latest version.
This is great, thanks! But is it possible for this script to not translate the hashtags?