There are two main ways to get started with sbt.el. Either through el-get or manually

Add to your emacs init.el/initialization or el-get configuration.

(add-to-list 'el-get-sources
  (:name sbt
   :website "https://github.com/rubbish/sbt.el"
   :description "support for running sbt in inferior mode."
   :type github
   :pkgname "rubbish/sbt.el"
   :post-init (add-hook 'scala-mode-hook 'turn-on-sbt-mode)))

1. Clone somewhere onto your emacs load-path.
2. Add to your emacs init.el or initialization.

(autoload 'turn-on-sbt-mode "sbt" "" t)
(add-hook 'scala-mode-hook 'turn-on-sbt-mode)

• C-c s s -- starts an interactive sbt repl
• C-c s c -- sends compile to the sbt repl
• C-c s t -- sends test to the sbt repl
• C-c s o -- if in a test file, sends test-only com.test.SomeTest to the sbt repl

This file is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version.

This file is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with GNU Emacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.