diff --git a/etc/guix-config/sodium.scm b/etc/guix-config/sodium.scm
new file mode 100644
index 0000000..ca0d6ac
--- /dev/null
+++ b/etc/guix-config/sodium.scm
@@ -0,0 +1,28 @@
+(add-to-load-path (dirname (current-filename)))
+(use-modules (gnu) (cobra os))
+
+(operating-system
+  (inherit %base-guix-system)
+  (host-name "Sodium")
+  (mapped-devices (list
+                    (mapped-device
+                      (source (uuid "d07456c7-51a5-4ed8-b5b6-a409884c7ebd"))
+                      (target "fde")
+                      (type luks-device-mapping))
+                    (mapped-device
+                      (source "matrix")
+                      (targets (list "matrix-rootvol"))
+                      (type lvm-device-mapping))))
+  (file-systems (append (list
+                          (file-system
+                            (type "btrfs")
+                            (mount-point "/")
+                            (device (file-system-label "root"))
+                            (flags '(no-atime))
+                            (options "space_cache=v2")
+                            (needed-for-boot? #t)
+                            (dependencies mapped-devices)))
+                       %base-file-systems))
+  (swap-devices (list (swap-space
+                        (target "/swapfile")))))
+