hosts/dandelion: init

hosts/dandelion/default.nix

@@ -0,0 +1,24 @@
+{ config, inputs, modules, modulesPath, overlays, pkgs, ... }: {
+  networking.hostName = "dandelion";
+  system.stateVersion = "23.11";
+  time.timeZone = "Australia/Melbourne";
+
+  imports = with modules.system; [
+    (modulesPath + "/profiles/qemu-guest.nix")
+    inputs.home-manager-stable.nixosModule
+
+    base
+    home-manager
+    input
+    nix-stable
+    security
+    #wireguard
+
+    ./filesystem.nix
+    ./kernel.nix
+    ./networking.nix
+    ./packages.nix
+
+    ../../users/hana
+  ];
+}

hosts/dandelion/filesystem.nix

@@ -0,0 +1,34 @@
+{ config, ... }:
+let
+  bind = src: {
+    depends = [ "/nix" ];
+    device = src;
+    fsType = "none";
+    neededForBoot = true;
+    options = [ "bind" ];
+  };
+
+  mkLabelMount = label: type: lazy: {
+    device = "/dev/disk/by-label/${label}";
+    fsType = type;
+    options = [ "defaults" "relatime" ] ++ lib.optionals lazy [ "nofail" ];
+  };
+  mkBtrfsMount = name: subvol: atime: mkLabelMount name "btrfs" false // {
+    options = [ "autodefrag" "compress=zstd:3" "defaults" "discard=async" "space_cache=v2" "ssd" "subvol=${subvol}" (if atime then "relatime" else "noatime") ];
+  };
+  submount = mkBtrfsMount "DANDELION";
+in {
+  fileSystems = {
+    "/" = {
+      device = "rootfs";
+      fsType = "tmpfs";
+      options = [ "defaults" "size=12G" "mode=755" ];
+    };
+
+    "/boot" = mkLabelMount "UEFI" "vfat" true;
+    "/nix" = submount "/@/nix" false;
+    "/persist" = (submount "/@/persist" true) // { neededForBoot = true; };
+    "/persist/.snapshots" = submount "/snap/persist" false;
+    "/var/log/journal" = bind "/persist/journal";
+  };
+}

hosts/dandelion/kernel.nix

@@ -0,0 +1,18 @@
+{ config, inputs, pkgs, ... }: {
+  boot = {
+    loader = {
+      systemd-boot.enable = false;
+      efi.canTouchEfiVariables = true;
+      grub = {
+        enable = true;
+        device = "/dev/sda";
+      };
+    };
+    initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "xen_blkfront" ];
+    initrd.kernelModules = [ "nvme" ];
+    kernel.sysctl = {
+      "kernel.core_pattern" = "|/bin/false";
+      "kernel.sysrq" = 1;
+    };
+  };
+}

hosts/dandelion/networking.nix

@@ -0,0 +1,10 @@
+{ config, ... }: {
+  networking = {
+    useDHCP = true;
+
+    # extraHosts = ''
+    #   10.100.0.3 blossom
+    #   10.100.0.4 strawberry
+    # '';
+  };
+}

hosts/dandelion/packages.nix

@@ -0,0 +1,14 @@
+{ lib, pkgs, ... }: {
+  environment.systemPackages = with pkgs; [
+    git
+    htop
+    jq
+    neovim
+    rsync
+    sshfs
+    wget
+
+    kitty.terminfo
+  ];
+  environment.variables.EDITOR = "nvim";
+}