diff --git a/os/ccache.nix b/os/ccache.nix
new file mode 100644
index 0000000..8e03016
--- /dev/null
+++ b/os/ccache.nix
@@ -0,0 +1,5 @@
+{ config, ... }:
+{
+  programs.ccache.enable = true;
+  nix.settings.extra-sandbox-paths = [ config.programs.ccache.cacheDir ];
+}
diff --git a/os/hs/configuration.nix b/os/hs/configuration.nix
index e243959..556e7d9 100644
--- a/os/hs/configuration.nix
+++ b/os/hs/configuration.nix
@@ -19,6 +19,7 @@ in {
     ../forgejo.nix
     (import ../remote-disk-unlock.nix ["r8169"] sshKeys)
     ../builder.nix
+    ../ccache.nix
   ];
 
   boot = {