I could be interested. My app is currently translation based(word alignments, sense disambiguating) but had planned to venture into assisted writing for people who need translation assistance, but not 100% help, then giving them a score regarding how much help they needed, or how accurate their portion was. Then using that to help give advice on what they struggle with. Language is hugely complex so I’m currently focusing on ES-EN(or is that spa-eng? Depends on if you’re using nltk or spacy).