overhaul

zfs.nix

@@ -0,0 +1,29 @@
+{
+  service_configs,
+  config,
+  pkgs,
+  ...
+}:
+let
+  zfs-key = "/etc/zfs-key";
+in
+{
+  system.activationScripts = {
+    "zfs-key".text = ''
+      #!/bin/sh
+      rm -fr ${zfs-key} || true
+      cp ${./secrets/zfs-key} ${zfs-key}
+    '';
+  };
+
+  boot.zfs.package = pkgs.zfs_unstable;
+  boot.initrd.kernelModules = [ "zfs" ];
+
+  boot.kernelParams = [
+    # 2048MB
+    "zfs.zfs_arc_max=2048000000"
+  ];
+
+  boot.supportedFilesystems = [ "zfs" ];
+  boot.zfs.extraPools = [ service_configs.zpool ];
+}