Feat: Switch to inpersistent temproot.

Having persistence as opt-in has several advantages,
for instance better reproduceability.

1 files changed, 12 insertions, 3 deletions

diff --git a/hardware-configuration.nix b/hardware-configuration.nix
index 8495607..d54f90a 100644
--- a/hardware-configuration.nix
+++ b/hardware-configuration.nix
@@ -5,14 +5,23 @@
   boot.initrd.kernelModules = ["nvme" "btrfs"];
   fileSystems = {
     "/" = {
+      device = "tmpfs";
+      fsType = "tmpfs";
+      options = ["defaults" "size=2G" "mode=755"];
+    };
+    "/nix" = {
       device = "/dev/vda3";
       fsType = "btrfs";
-      options = ["subvol=nixos-root"];
+      options = ["subvol=nix" "compress-force=zstd"];
     };
-    "/nix" = {
+    "/srv" = {
       device = "/dev/vda3";
       fsType = "btrfs";
-      options = ["subvol=nix"];
+      options = ["subvol=storage" "compress-force=zstd"];
+    };
+    "/etc/nixos" = {
+      device = "/srv/nix-config";
+      options = ["bind"];
     };
   };
 }