flake: update configuration for tower

flake.lock

@@ -34,7 +34,23 @@
     "root": {
       "inputs": {
         "impermanence": "impermanence",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "systems": "systems"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1689347949,
+        "narHash": "sha256-12tWmuL2zgBgZkdoB6qXZsgJEH9LR3oUgpaQq2RbI80=",
+        "owner": "nix-systems",
+        "repo": "default-linux",
+        "rev": "31732fcf5e8fea42e59c2488ad31a0e651500f68",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default-linux",
+        "type": "github"
       }
     }
   },

flake.nix

@@ -3,14 +3,22 @@
   outputs = inputs: let
     pkgs = inputs.nixpkgs.legacyPackages.x86_64-linux;
     user = import ./modules/user {inherit pkgs;};
+    eachSystem = inputs.nixpkgs.lib.genAttrs (import inputs.systems);
+    pkgsFor = inputs.nixpkgs.legacyPackages;
   in {
     nixosConfigurations = import ./hosts inputs;
 
     devShells.x86_64-linux.default = pkgs.callPackage ./shell.nix {};
 
     formatter.x86_64-linux = pkgs.alejandra;
-    packages.x86_64-linux = user.packages;
+
-    packages.aarch64-linux = user.packages;
+    packages = eachSystem (
+      system: let
+        user = import ./modules/user {pkgs = pkgsFor.${system};};
+      in {
+        inherit (user) packages;
+      }
+    );
 
     apps.x86_64-linux = {
       default = {
@@ -30,6 +38,8 @@
     # Unstable nixpkgs baby!
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
 
+    systems.url = "github:nix-systems/default-linux";
+
     impermanence.url = "github:nix-community/impermanence";
   };
 }

hosts/tower/filesystem/default.nix

@@ -1,16 +1,14 @@
 {
-  config = {
+  config.fileSystems = {
-    fileSystems = {
     "/boot" = {
       device = "/dev/disk/by-uuid/3480-C94B";
       fsType = "vfat";
     };
-      # root on tmpfs
+
     "/" = {
-        device = "/dev/disk/by-uuid/3dde50ca-440d-4d46-974e-efc623e53703";
+      device = "/dev/disk/by-uuid/3a781f2e-290a-4609-9035-a93374459def";
-        fsType = "btrfs";
+      fsType = "ext4";
-        options = ["compress=zstd" "noatime"];
+      options = ["noatime" "compress=zstd"];
-      };
     };
   };
 }

hosts/tower/hardware-configuration.nix

@@ -1,24 +1,23 @@
 {
-  config,
   lib,
   modulesPath,
   ...
 }: {
-  imports = [(modulesPath + "/installer/scan/not-detected.nix")];
+  imports = [
+    (modulesPath + "/profiles/qemu-guest.nix")
+  ];
 
-  boot.initrd.availableKernelModules = ["xhci_pci" "ahci" "nvme" "usbhid" "sd_mod"];
+  boot.initrd.availableKernelModules = ["xhci_pci" "virtio_scsi" "sr_mod"];
   boot.initrd.kernelModules = [];
   boot.kernelModules = [];
   boot.extraModulePackages = [];
 
+  swapDevices = [];
+
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
   # (the default) this is the recommended approach. When using systemd-networkd it's
   # still possible to use this option, but it's recommended to use it in conjunction
   # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
   networking.useDHCP = lib.mkDefault true;
-  # networking.interfaces.enp4s0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp7s0.useDHCP = lib.mkDefault true;
-
-  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
-  hardware.cpu.intel.updateMicrocode =
-    lib.mkDefault config.hardware.enableRedistributableFirmware;
 }

modules/services/ssh.nix

@@ -6,6 +6,7 @@ in {
     programs.ssh.startAgent = true;
     services.openssh = {
       enable = true;
+      ports = [8997];
       settings = {
         PasswordAuthentication = false;
         PermitRootLogin = "no";