Open Oscar Server: open-source server compatible with AIM and ICQ clients

Open OSCAR Server is an open-source instant messaging server written in Go that is compatible with classic AIM and ICQ clients. The project supports various features including buddy lists, chat rooms, instant messaging, user profiles, file sharing, and offline messaging across multiple AIM and ICQ client versions. The initiative is independent and non-commercial, with active development and community contributions welcomed through its Discord server.