Initial scaffolding and layout

Set up the modules of the flake. At this time, the flake is split into
modules and machines. Considering that additional top-level sections --
such as packages and shells -- will also be added, it might make sense
to keep all nix related things in one top-level directory, alongside the
flake.nix file.

This is all under the assumption that later amendments to the project
will introduce other tech, such as terraform.

5 files changed, 101 insertions, 0 deletions

diff --git a/machines/flake-module.nix b/machines/flake-module.nix
new file mode 100644
index 0000000..d06bfc2
--- /dev/null
+++ b/machines/flake-module.nix
@@ -0,0 +1,29 @@
+{ lib, self, ... }:
+let
+  inherit (lib) nixosSystem;
+  inherit (self.nixosModules) xnet xlib;
+in
+{
+  flake.nixosConfigurations = {
+    t480 = nixosSystem {
+      system = "x86_64-linux";
+      specialArgs = { inherit xlib; };
+      modules = [ ./t480 xnet ];
+    };
+
+    iso = nixosSystem {
+      system = "x86_64-linux";
+      modules = [ ./iso ];
+    };
+
+    # t1 = nixosSystem {
+    #   system = "x86_64-linux";
+    #   modules = [ ./t1 ];
+    # };
+    #
+    # iridium = nixosSystem {
+    #   system = "x86_64-linux";
+    #   modules = [ ./iridium ];
+    # };
+  };
+}
diff --git a/machines/iridium/default.nix b/machines/iridium/default.nix
new file mode 100644
index 0000000..c915eb0
--- /dev/null
+++ b/machines/iridium/default.nix
@@ -0,0 +1 @@
+{ ... }: { }
diff --git a/machines/iso/default.nix b/machines/iso/default.nix
new file mode 100644
index 0000000..d7d5861
--- /dev/null
+++ b/machines/iso/default.nix
@@ -0,0 +1,32 @@
+{ modulesPath, pkgs, ... }: {
+  imports = [
+    (modulesPath + "/installer/cd-dvd/installation-cd-minimal.nix")
+    (modulesPath + "/installer/cd-dvd/channel.nix")
+  ];
+
+  nix.settings = {
+    experimental-features = [ "nix-command" "flakes" ];
+  };
+
+  environment.systemPackages = with pkgs; [
+    bash
+    git
+    gum
+    jq
+    (writeShellScriptBin "xinstall" ''
+      set -euo pipefail
+
+      FLAKE="github:kbujari/depot/scaffolding"
+
+      TARGET=$(
+        nix flake show "$FLAKE" --json 2>/dev/null \
+          | jq -r '.["nixosConfigurations"] | keys[] | select(. != "iso")' \
+          | gum choose
+      )
+
+      gum confirm --default=false "This will erase the selected disk, confirm:"
+
+      echo selected "$FLAKE"#"$TARGET"
+    '')
+  ];
+}
diff --git a/machines/t1/default.nix b/machines/t1/default.nix
new file mode 100644
index 0000000..c915eb0
--- /dev/null
+++ b/machines/t1/default.nix
@@ -0,0 +1 @@
+{ ... }: { }
diff --git a/machines/t480/default.nix b/machines/t480/default.nix
new file mode 100644
index 0000000..d17899e
--- /dev/null
+++ b/machines/t480/default.nix
@@ -0,0 +1,38 @@
+{ ... }: {
+  system.stateVersion = "24.05";
+
+  xnet = {
+    desktop.enable = true;
+    disk = {
+      enable = true;
+      device = "nvme0n1";
+      extraDatasets = {
+        "persist/usr" = {
+          type = "zfs_fs";
+          mountpoint = "/home/k6";
+          options.mountpoint = "legacy";
+        };
+      };
+    };
+  };
+
+  networking = {
+    hostName = "t480";
+    useDHCP = false;
+    dhcpcd.enable = false;
+    nameservers = [ "9.9.9.9" ];
+    networkmanager = {
+      enable = true;
+      dns = "none";
+      wifi = {
+        powersave = true;
+        backend = "iwd";
+      };
+    };
+  };
+
+  systemd.tmpfiles.rules = [
+    "d /persist/data/NetworkManager 0750 - - -"
+    "L+ /var/lib/NetworkManager - - - - /persist/data/NetworkManager"
+  ];
+}