From a9e15c9f99de745b11b5a8b4277ce037a9230521 Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex@adnab.me>
Date: Tue, 18 Jul 2023 23:15:40 +0200
Subject: add zinzin machine with rootless nixos on zfs (pretty nice config!)

---
 nixos/zinzin.nix   | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 nixpkgs/zinzin.nix |  1 +
 2 files changed, 94 insertions(+)
 create mode 100644 nixos/zinzin.nix
 create mode 120000 nixpkgs/zinzin.nix

diff --git a/nixos/zinzin.nix b/nixos/zinzin.nix
new file mode 100644
index 0000000..12e3d1f
--- /dev/null
+++ b/nixos/zinzin.nix
@@ -0,0 +1,93 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [
+      (modulesPath + "/installer/scan/not-detected.nix")
+      ./common.nix
+      ./icewm.nix
+    ];
+
+  networking.hostName = "zinzin";
+  networking.hostId = "304a68ef";
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "nvme" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  boot.initrd.luks.devices = {
+    lukszfs = {
+      device = "/dev/disk/by-uuid/f75e45a4-dc1e-4f38-b2d8-3336ec3790ef";
+      allowDiscards = true;
+    };
+  };
+
+  # ---- standard filesystems ----
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/3BC8-460B";
+      fsType = "vfat";
+    };
+
+  fileSystems."/home" =
+    { device = "zinzin/nixos/home";
+      fsType = "zfs";
+      neededForBoot = true; # because contains password files used below
+    };
+
+  fileSystems."/nix" =
+    { device = "zinzin/nixos/nix";
+      fsType = "zfs";
+    };
+
+  swapDevices = [ ];
+
+  # ---- tmpfs root filesystem with special persisted directory ----
+
+  fileSystems."/" = {
+    device = "none";
+    fsType = "tmpfs";
+    options = [ "defaults" "size=4G" "mode=755" ];
+  };
+
+  fileSystems."/persist" =
+    { device = "zinzin/nixos/persist";
+      fsType = "zfs";
+      neededForBoot = true;  # because contains /var/log
+    };
+
+  environment.etc."machine-id".source = "/persist/etc/machine-id";
+
+  fileSystems."/etc/NetworkManager/system-connections" =
+    { device = "/persist/etc/NetworkManager/system-connections";
+      fsType = "none";
+      depends = [ "/persist" "/mnt-root/persist" ];
+      options = [ "bind" ];
+    };
+
+  fileSystems."/var/log" =
+    { device = "/persist/var/log";
+      fsType = "none";
+      depends = [ "/persist" "/mnt-root/persist" ];
+      options = [ "bind" ];
+    };
+
+  # ---- immutable user config for tmpfs root ----
+
+  users.mutableUsers = false;
+  users.users.lx.passwordFile = "/home/lx/.password";
+
+  # ----
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}
diff --git a/nixpkgs/zinzin.nix b/nixpkgs/zinzin.nix
new file mode 120000
index 0000000..4d5015a
--- /dev/null
+++ b/nixpkgs/zinzin.nix
@@ -0,0 +1 @@
+kusanagi.nix
\ No newline at end of file
-- 
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