From 30e47b3e98ac0e427c1b8e7a82489892c2354d85 Mon Sep 17 00:00:00 2001
From: sils <sils@sils.li>
Date: Sat, 14 Jan 2023 15:04:00 +0100
Subject: Feat: Switch root into subvolume

This enables further changes like temproot.
---
 hardware-configuration.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hardware-configuration.nix b/hardware-configuration.nix
index cb9d265..19626a7 100644
--- a/hardware-configuration.nix
+++ b/hardware-configuration.nix
@@ -6,5 +6,6 @@
   fileSystems."/" = {
     device = "/dev/vda3";
     fsType = "btrfs";
+    options = ["subvol=nixos-root"];
   };
 }
-- 
cgit 1.4.1


From 4f0c0ee87c757f74c71c8991c7059c75a48d8523 Mon Sep 17 00:00:00 2001
From: sils <sils@sils.li>
Date: Sat, 14 Jan 2023 15:26:17 +0100
Subject: Feat: Separate nix from root

Another step towards temproot
---
 hardware-configuration.nix | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/hardware-configuration.nix b/hardware-configuration.nix
index 19626a7..8495607 100644
--- a/hardware-configuration.nix
+++ b/hardware-configuration.nix
@@ -3,9 +3,16 @@
   boot.loader.grub.device = "/dev/vda";
   boot.initrd.availableKernelModules = ["ata_piix" "uhci_hcd" "xen_blkfront" "vmw_pvscsi"];
   boot.initrd.kernelModules = ["nvme" "btrfs"];
-  fileSystems."/" = {
-    device = "/dev/vda3";
-    fsType = "btrfs";
-    options = ["subvol=nixos-root"];
+  fileSystems = {
+    "/" = {
+      device = "/dev/vda3";
+      fsType = "btrfs";
+      options = ["subvol=nixos-root"];
+    };
+    "/nix" = {
+      device = "/dev/vda3";
+      fsType = "btrfs";
+      options = ["subvol=nix"];
+    };
   };
 }
-- 
cgit 1.4.1


From b32d3daea842e32ff44240c0f9fcc8778d1348d6 Mon Sep 17 00:00:00 2001
From: sils <sils@sils.li>
Date: Sat, 14 Jan 2023 16:05:45 +0100
Subject: Feat: Switch to inpersistent temproot.

Having persistence as opt-in has several advantages,
for instance better reproduceability.
---
 hardware-configuration.nix | 15 ++++++++++++---
 1 file 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"];
     };
   };
 }
-- 
cgit 1.4.1