The Ivory Language is an eDSL for safe systems programming. You can think of Ivory as a safer C, embedded in Haskell.
The Ivory Language compiler is open source software. It is available on github and on hackage:
Source on Github Docs on Hackage
We are presenting an experience report on using Ivory to build SMACCMPilot at ICFP 2014:
Ivory is made by Galois.