added for vps

hosts/magus.nix

@@ -1,48 +1,56 @@
-# WIP
 {
   config,
   pkgs,
   lib,
   inputs,
+  modulesPath,
   ...
 }: {
   imports = [
+    (modulesPath + "/profiles/qemu-guest.nix")
+    ./server/disk-config.nix
     ./server/hardware-configuration.nix
     ./server/networking.nix
     ./server/security.nix
     ./server/nginx.nix
     ./server/redis.nix
+    ./modules/timezone.nix
+    ./modules/docker.nix
+    ./modules/npm.nix
+    ./modules/nixos.nix
   ];
-  system.stateVersion = "24.11";
-  boot.loader.grub = {
-    enable = true;
-    device = "/dev/vda";
-  };
-  networking.hostName = "alteur";
-  users.users.admin = {
-    isNormalUser = true;
-    extraGroups = ["wheel"];
-    openssh.authorizedKeys.keyFiles = [
-      ../.secrets/id_ed25519.pub
-    ];
+
+  system.stateVersion = "25.05";
+
+  boot = {
+    loader.grub.enable = true;
+    initrd.availableKernelModules = ["xen_blkfront" "virtio_blk"];
   };
+
   environment.systemPackages = with pkgs; [
     wget
     curl
     git
     htop
     btop
-    nodejs_20
     ffmpeg
     yt-dlp
+    fastfetch
   ];
-  nix.gc = {
+
+  nix = {
+    gc = {
       automatic = true;
       dates = "weekly";
       options = "--delete-older-than 30d";
     };
-  nix.settings.auto-optimise-store = true;
-  services.fstrim.enable = true;
-  services.xserver.enable = false;
+    settings.auto-optimise-store = true;
+  };
+
+  services = {
+    fstrim.enable = true;
+    xserver.enable = false;
+  };
+
   sound.enable = false;
 }

hosts/server/configuration.nix

@@ -0,0 +1,57 @@
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}: {
+  imports = [
+    (modulesPath + "/profiles/qemu-guest.nix")
+    ./disk-config.nix
+  ];
+
+  boot.loader.grub = {
+    enable = true;
+  };
+
+  boot.initrd.availableKernelModules = ["xen_blkfront" "virtio_blk"];
+
+  networking = {
+    hostName = "alteur";
+    useDHCP = false;
+    interfaces.enX0.ipv4.addresses = [
+      {
+        address = "redacted";
+        prefixLength = 24;
+      }
+    ];
+    defaultGateway = "redacted";
+    nameservers = ["8.8.8.8" "8.8.4.4"];
+  };
+
+  services.openssh = {
+    enable = true;
+    ports = [8123];
+    settings = {
+      PermitRootLogin = "prohibit-password";
+      PasswordAuthentication = false;
+    };
+  };
+
+  users.users.root.openssh.authorizedKeys.keys = [
+    "redacted"
+  ];
+
+  environment.systemPackages = with pkgs; [
+    curl
+    git
+    htop
+  ];
+
+  networking.firewall = {
+    enable = true;
+    allowedTCPPorts = [8123 80 443];
+  };
+
+  system.stateVersion = "25.05";
+}

hosts/server/disk-config.nix

@@ -0,0 +1,28 @@
+{lib, ...}: {
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        device = "/dev/xvda";
+        content = {
+          type = "gpt";
+          partitions = {
+            MBR = {
+              type = "EF02";
+              size = "1M";
+              priority = 1;
+            };
+            root = {
+              size = "100%";
+              content = {
+                type = "filesystem";
+                format = "ext4";
+                mountpoint = "/";
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

hosts/server/flake.lock

@@ -0,0 +1,64 @@
+{
+  "nodes": {
+    "disko": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1760701190,
+        "narHash": "sha256-y7UhnWlER8r776JsySqsbTUh2Txf7K30smfHlqdaIQw=",
+        "owner": "nix-community",
+        "repo": "disko",
+        "rev": "3a9450b26e69dcb6f8de6e2b07b3fc1c288d85f5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "disko",
+        "type": "github"
+      }
+    },
+    "nixos-facter-modules": {
+      "locked": {
+        "lastModified": 1761137276,
+        "narHash": "sha256-4lDjGnWRBLwqKQ4UWSUq6Mvxu9r8DSqCCydodW/Jsi8=",
+        "owner": "numtide",
+        "repo": "nixos-facter-modules",
+        "rev": "70bcd64225d167c7af9b475c4df7b5abba5c7de8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "nixos-facter-modules",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1761440988,
+        "narHash": "sha256-2qsow3cQIgZB2g8Cy8cW+L9eXDHP6a1PsvOschk5y+E=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "de69d2ba6c70e747320df9c096523b623d3a4c35",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "disko": "disko",
+        "nixos-facter-modules": "nixos-facter-modules",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

hosts/server/flake.nix

@@ -0,0 +1,49 @@
+{
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+  inputs.disko.url = "github:nix-community/disko";
+  inputs.disko.inputs.nixpkgs.follows = "nixpkgs";
+  inputs.nixos-facter-modules.url = "github:numtide/nixos-facter-modules";
+
+  outputs = {
+    nixpkgs,
+    disko,
+    nixos-facter-modules,
+    ...
+  }: {
+    nixosConfigurations.alteur = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      modules = [
+        disko.nixosModules.disko
+        ./configuration.nix
+      ];
+    };
+
+    # Use this for all other targets
+    # nixos-anywhere --flake .#generic --generate-hardware-config nixos-generate-config ./hardware-configuration.nix <hostname>
+    nixosConfigurations.generic = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      modules = [
+        disko.nixosModules.disko
+        ./configuration.nix
+        ./hardware-configuration.nix
+      ];
+    };
+
+    # Slightly experimental: Like generic, but with nixos-facter (https://github.com/numtide/nixos-facter)
+    # nixos-anywhere --flake .#generic-nixos-facter --generate-hardware-config nixos-facter facter.json <hostname>
+    nixosConfigurations.generic-nixos-facter = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      modules = [
+        disko.nixosModules.disko
+        ./configuration.nix
+        nixos-facter-modules.nixosModules.facter
+        {
+          config.facter.reportPath =
+            if builtins.pathExists ./facter.json
+            then ./facter.json
+            else throw "Have you forgotten to run nixos-anywhere with `--generate-hardware-config nixos-facter ./facter.json`?";
+        }
+      ];
+    };
+  };
+}

hosts/server/hardware-configuration.nix

@@ -0,0 +1,22 @@
+# 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 = [ ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "platform_pci" "sr_mod" "xen_blkfront" ];
+  boot.initrd.kernelModules = [ "dm-snapshot" ];
+  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.enX0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

hosts/server/networking.nix

@@ -0,0 +1,22 @@
+{
+  config,
+  lib,
+  ...
+}: {
+  networking = {
+    hostName = "magus";
+    useDHCP = false;
+    interfaces.enX0.ipv4.addresses = [
+      {
+        address = "104.152.210.245";
+        prefixLength = 24;
+      }
+    ];
+    defaultGateway = "104.152.210.1";
+    nameservers = ["8.8.8.8" "8.8.4.4"];
+    firewall = {
+      enable = true;
+      allowedTCPPorts = [8123 80 443];
+    };
+  };
+}

hosts/server/redis.nix

@@ -0,0 +1,15 @@
+{
+  config,
+  pkgs,
+  ...
+}: {
+  services.redis.servers."" = {
+    enable = true;
+    bind = "127.0.0.1";
+    port = 6379;
+    settings = {
+      maxmemory = "256mb";
+      maxmemory-policy = "allkeys-lru";
+    };
+  };
+}

hosts/server/security.nix

@@ -0,0 +1,28 @@
+{
+  config,
+  pkgs,
+  ...
+}: {
+  services.openssh = {
+    enable = true;
+    ports = [8123];
+    settings = {
+      PermitRootLogin = "prohibit-password";
+      PasswordAuthentication = false;
+    };
+  };
+
+  users.users.root.openssh.authorizedKeys.keyFiles = [
+    ../../.secrets/id_ed25519.pub
+  ];
+
+  users.users.admin = {
+    isNormalUser = true;
+    extraGroups = ["wheel" "docker"];
+    openssh.authorizedKeys.keyFiles = [
+      ../../.secrets/id_ed25519.pub
+    ];
+  };
+
+  security.sudo.wheelNeedsPassword = false;
+}