This document summarizes the LangOER network project which aims to enhance teaching and learning of less used languages through open educational resources (OER) and practices (OEP). The network involves 9 partners across Europe. It addresses how OER can benefit less used languages and foster linguistic diversity. It conducted research, teacher training, and engaged stakeholders of regional languages. The training course for teachers exceeded expectations by providing useful resources, feedback, and inspiration for using and contributing OER to support language learning.