chore: remove features.old archive and format all files

- Delete home/features.old/ (archived old flat feature modules)
- All content migrated to new profile-based structure
- Run alejandra formatter over 13 changed files
- nix flake check passes cleanly

hosts/m3-aether/hardware-configuration.nix

@@ -1,24 +1,28 @@
-# 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 + "/profiles/qemu-guest.nix")
-    ];
-
-  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
-  boot.initrd.kernelModules = [ ];
-  boot.kernelModules = [ ];
-  boot.extraModulePackages = [ ];
-
-  # 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.ens18.useDHCP = lib.mkDefault true;
-
-  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
-}
+# 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 + "/profiles/qemu-guest.nix")
+  ];
+
+  boot.initrd.availableKernelModules = ["ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod"];
+  boot.initrd.kernelModules = [];
+  boot.kernelModules = [];
+  boot.extraModulePackages = [];
+
+  # 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.ens18.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

hosts/m3-ares/services/postgres.nix

@@ -1,7 +1,4 @@
-{
-  pkgs,
-  ...
-}: {
+{pkgs, ...}: {
   services.postgresql = {
     enable = true;
     package = pkgs.postgresql_17;

hosts/m3-atlas/services/containers/kestra.nix

@@ -1,9 +1,9 @@
-{ config, ... }: {
+{config, ...}: {
   virtualisation.oci-containers.containers."kestra" = {
     image = "docker.io/kestra/kestra:latest";
-    environmentFiles = [ config.age.secrets.kestra-env.path ];
-    cmd = [ "server" "standalone" "--config" "/etc/config/application.yaml"];
-    ports = [ "127.0.0.1:3018:8080" ];
+    environmentFiles = [config.age.secrets.kestra-env.path];
+    cmd = ["server" "standalone" "--config" "/etc/config/application.yaml"];
+    ports = ["127.0.0.1:3018:8080"];
     user = "root";
     volumes = [
       "/var/run/docker.sock:/var/run/docker.sock"
@@ -11,8 +11,7 @@
       "kestra_data:/app/storage"
       "/tmp/kestra-wd:/tmp/kestra-wd"
     ];
-    extraOptions =
-      [ "--add-host=postgres:10.89.0.1" "--ip=10.89.0.18" "--network=web" ];
+    extraOptions = ["--add-host=postgres:10.89.0.1" "--ip=10.89.0.18" "--network=web"];
   };
 
   systemd.tmpfiles.rules = [
@@ -21,12 +20,11 @@
 
   # Traefik configuration specific to littlelink
   services.traefik.dynamicConfigOptions.http = {
-    services.kestra.loadBalancer.servers =
-      [{ url = "http://localhost:3018/"; }];
+    services.kestra.loadBalancer.servers = [{url = "http://localhost:3018/";}];
 
     routers.kestra = {
       rule = "Host(`k.m3ta.dev`)";
-      tls = { certResolver = "godaddy"; };
+      tls = {certResolver = "godaddy";};
       service = "kestra";
       entrypoints = "websecure";
     };

hosts/m3-helios/hardware-configuration.nix

@@ -1,24 +1,28 @@
-# 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 + "/profiles/qemu-guest.nix")
-    ];
-
-  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
-  boot.initrd.kernelModules = [ ];
-  boot.kernelModules = [ ];
-  boot.extraModulePackages = [ ];
-
-  # 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.ens18.useDHCP = lib.mkDefault true;
-
-  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
-}
+# 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 + "/profiles/qemu-guest.nix")
+  ];
+
+  boot.initrd.availableKernelModules = ["ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod"];
+  boot.initrd.kernelModules = [];
+  boot.kernelModules = [];
+  boot.extraModulePackages = [];
+
+  # 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.ens18.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

hosts/m3-hermes/hardware-configuration.nix

@@ -1,7 +1,13 @@
 # Do not modify this file!  It was generated by 'nixos-generate-config'
 # and may be overwritten by future invocations.  Please make changes
 # to configuration.nix instead.
-{config, lib, pkgs, modulesPath, ...}: {
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}: {
   imports = [
     (modulesPath + "/profiles/qemu-guest.nix")
   ];