T is a text editor inspired by the Acme and Sam editors of the Plan9 operating system and Plan9 from User Space project.
The current incarnation of T is just a text editing library. It implements a dialect of the Sam language. This language is used for editing buffers of Unicode characters which, like the Go programming language in which it is written, T calls runes. See https://godoc.org/github.com/eaburns/T/edit for more info.
In the future, T will use this library as the backend for an editor much like Acme. For a taste of Acme, see Russ Cox's tour.
This document details some thoughts about the client/server aspect of T. They are just thoughts and are subject to change.