migrate to impermanence?

flake.lock

@@ -412,22 +412,6 @@
         "type": "github"
       }
     },
-    "nix-zulip": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1764583012,
-        "narHash": "sha256-6ht4dtI1TBDAaB/Tatq+FcPexaZTBWuRiJGnioCDx5c=",
-        "ref": "refs/heads/main",
-        "rev": "a9dd0f80d775745f1d88055f24d944562db97c5e",
-        "revCount": 67,
-        "type": "git",
-        "url": "https://git.afnix.fr/nix-zulip/nix-zulip"
-      },
-      "original": {
-        "type": "git",
-        "url": "https://git.afnix.fr/nix-zulip/nix-zulip"
-      }
-    },
     "nixos-mailserver": {
       "inputs": {
         "blobs": "blobs",
@@ -599,7 +583,6 @@
         "agenix": "agenix",
         "home-manager": "home-manager_2",
         "impermanence": "impermanence",
-        "nix-zulip": "nix-zulip",
         "nixos-mailserver": "nixos-mailserver",
         "nixpkgs": "nixpkgs",
         "noshell": "noshell",

flake.nix

@@ -14,10 +14,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
-    nix-zulip = {
-      url = "git+https://git.afnix.fr/nix-zulip/nix-zulip";
-      flake = false;
-    };
     noshell = {
       url = "github:viperML/noshell";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -45,7 +41,6 @@
     impermanence,
     nixos-mailserver,
     nixpkgs,
-    nix-zulip,
     noshell,
     nur,
     nvf,
@@ -53,7 +48,6 @@
     stylix,
     ...
   }: let
-    nix-zulip' = (import "${nix-zulip}/nix/default.nix" {}).output;
     machines = import ./machines.nix;
     configuration = machine: modules:
       nixpkgs.lib.nixosSystem {
@@ -62,37 +56,23 @@
         modules =
           modules
           ++ [
+            ./machines/${machine.hostname}/configuration.nix
             ./users.nix
             ./secrets.nix
             impermanence.nixosModules.impermanence
             agenix.nixosModules.default
             nixos-mailserver.nixosModule
             phoenix.nixosModules.default
-            nix-zulip'.nixosModules.zulip
-            {
-              nixpkgs.overlays = [
-                agenix.overlays.default
-                nur.overlays.default
-                nix-zulip'.overlays.default
-              ];
-            }
-            (
-              if machine.hostname != "109-199-104-83"
-              then
-                {config, ...}: {
-                  imports = [
-                    ./machines/${machine.hostname}/configuration.nix
-                  ];
-                  networking.domain = config.networking.hostName; # temporary fix
-                }
-              else {imports = machine.modules;}
-            )
           ];
       };
     configurationWithHomeManager = machine: (configuration machine
       [
         home-manager.nixosModules.home-manager
         {
+          nixpkgs.overlays = [
+            agenix.overlays.default
+            nur.overlays.default
+          ];
           home-manager.useGlobalPkgs = true;
           home-manager.extraSpecialArgs = {inherit machine;};
           home-manager.users =

machines.nix

@@ -6,50 +6,10 @@
       "andromeda"
       "mtgmonkey"
     ];
-    modules = [
-    ];
   };
   "109-199-104-83" = {
     hostname = "109-199-104-83";
     system = "x86_64-linux";
     users = [];
-    modules = [
-      # hardware configuration
-      # verbatim as `nixos-generate-config` AND `system.stateVersion`
-      ./machines/109-199-104-83.nix
-
-      # boot process
-      # grub boot on /dev/sda
-      ./modules/nixos/boot/109-199-104-83.nix
-
-      # networking
-      ./modules/nixos/networking/domains/galaxious.de.nix
-      ./modules/nixos/networking/networks/109-199-104-83.nix
-
-      # ssh through port 5522 among other things
-      # andromeda@lenovo is the only user allowed access
-      ./modules/nixos/networking/hard-ssh.nix
-      ./modules/nixos/networking/ssh-as-root.nix
-      ({config, ...}: {users.users.root.openssh.authorizedKeys.keys = [config.pub-keys.ssh.andromeda];})
-
-      # boilerplate settings
-      ./modules/nixos/common.nix
-
-      # simple-nixos-mailserver email server
-      # mail.domain
-      ./modules/nixos/mailserver.nix
-
-      # roundcube webmail client
-      # webmail.domain
-      ./modules/nixos/roundcube.nix
-
-      # zulip chat client
-      # chat.domain
-      # zulip chat server
-      # zulip.domain
-      ./modules/nixos/zulip.nix
-      {
-      }
-    ];
   };
 }

machines/109-199-104-83.nix

@@ -1,35 +0,0 @@
-# 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"];
-  boot.initrd.kernelModules = [];
-  boot.kernelModules = [];
-  boot.extraModulePackages = [];
-
-  fileSystems."/" = {
-    device = "/dev/disk/by-uuid/159e6a69-b4e2-49c3-a6f0-5fcba0ea6a59";
-    fsType = "ext4";
-  };
-
-  fileSystems."/efi" = {
-    device = "systemd-1";
-    fsType = "autofs";
-  };
-
-  swapDevices = [];
-
-  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
-
-  system.stateVersion = "25.11";
-}

machines/109-199-104-83/configuration.nix

@@ -0,0 +1,98 @@
+{
+  config,
+  modulesPath,
+  machine,
+  ...
+}: {
+  imports = [
+    ./impermanence.nix
+    (modulesPath + "/profiles/qemu-guest.nix")
+  ];
+  # roundcube config
+  services.roundcube = {
+    enable = true;
+    hostName = "webmail.${config.networking.domain}";
+    extraConfig = ''
+      $config['imap_host'] = "ssl://${config.mailserver.fqdn}";
+      $config['smtp_host'] = "ssl://${config.mailserver.fqdn}";
+      $config['smtp_user'] = "%u";
+      $config['smtp_pass'] = "%p";
+    '';
+  };
+
+  # mailserver config
+  mailserver = {
+    enable = true;
+    stateVersion = 3;
+    fqdn = "mail.${config.networking.domain}";
+    domains = ["${config.networking.domain}"];
+    x509.useACMEHost = config.mailserver.fqdn;
+    loginAccounts = {
+      "test@${config.networking.domain}" = {
+        hashedPasswordFile = builtins.toString config.age.secrets.secret3.path;
+      };
+    };
+  };
+
+  # cert config
+  security.acme = {
+    acceptTerms = true;
+    defaults.email = "mtgmonket@gmail.com";
+  };
+  services.nginx = {
+    enable = true;
+    virtualHosts."mail.${config.networking.domain}" = {
+      forceSSL = true;
+      enableACME = true;
+    };
+  };
+
+  # system config
+  system.stateVersion = "25.11";
+  nix.settings.experimental-features = ["flakes" "nix-command"];
+  fileSystems."/" = {
+    device = "none";
+    fsType = "tmpfs";
+    options = ["defaults" "size=60%" "mode=755"];
+  };
+  fileSystems."/nix" = {
+    device = "/dev/sda1";
+    fsType = "ext4";
+  };
+  boot.loader.grub.device = "/dev/sda";
+  boot.loader.timeout = 30;
+  boot.initrd.availableKernelModules = ["ata_piix" "uhci_hcd" "xen_blkfront"];
+  boot.initrd.kernelModules = ["nvme"];
+  boot.tmp.cleanOnBoot = true;
+  zramSwap.enable = true;
+  networking = {
+    useNetworkd = true;
+    usePredictableInterfaceNames = true;
+    hostName = machine.hostname;
+    domain = "galaxious.de";
+    firewall = {
+      enable = true;
+      allowedTCPPorts = [80 443];
+      allowedUDPPorts = [80 443];
+    };
+  };
+  systemd.network = {
+    enable = true;
+    networks."40-wan" = {
+      matchConfig.Name = "enx0050565f4fff";
+      address = ["2a02:c207:2299:8419::1/64" "109.199.104.83/20"];
+      routes = [
+        {
+          Gateway = "109.199.96.1";
+          GatewayOnLink = true;
+        }
+        {Gateway = "fe80::1";}
+      ];
+      dns = ["2620:fe::fe" "9.9.9.9"];
+    };
+  };
+  services.openssh.enable = true;
+  users.mutableUsers = false;
+  users.users.root.openssh.authorizedKeys.keys = [config.pub-keys.ssh.andromeda];
+  programs.noshell.enable = true;
+}

machines/109-199-104-83/impermanence.nix

@@ -0,0 +1,30 @@
+{
+  environment.persistence."/nix/persist" = {
+    enable = true;
+    hideMounts = true;
+    directories = [
+      # logs
+      "/var/log"
+      "/var/lib/systemd/coredump"
+
+      # users
+      "/var/lib/nixos"
+
+      # private ssh keys
+      "/etc/ssh"
+
+      # mailserver
+      "/var/vmail"
+      "/var/dkim"
+      "/var/lib/dovecot"
+      "/var/lib/postfix"
+      "/var/lib/postgresql"
+      "/var/lib/redis-rspamd"
+      "/var/lib/roundcube"
+      "/var/lib/secrets"
+    ];
+    files = [
+      "/etc/machine-id"
+    ];
+  };
+}

machines/lenovo/configuration.nix

@@ -9,6 +9,10 @@
     ./impermanence.nix
     (modulesPath + "/installer/scan/not-detected.nix")
   ];
+  age.secrets = {
+    secret0.file = ../../secrets/secret0.age;
+    secret1.file = ../../secrets/secret1.age;
+  };
   boot.loader = {
     efi.canTouchEfiVariables = true;
     systemd-boot.enable = true;

modules/nixos/boot/109-199-104-83.nix

@@ -1,3 +0,0 @@
-{
-  boot.loader.grub.device = "/dev/sda";
-}

modules/nixos/common.nix

@@ -1,20 +0,0 @@
-{
-  config,
-  lib,
-  ...
-}: {
-  # flakes usage
-  nix.settings.experimental-features = [
-    "flakes"
-    "nix-command"
-  ];
-
-  # allows users to customize shell in `$XDG_CONFIG_HOME/shell` rather than
-  # needing /etc/shells. Useful for home-manager. Falls back.
-  programs.noshell.enable = true;
-
-  # cleans /tmp to maintain a tidy system
-  boot.tmp.cleanOnBoot = true;
-
-  networking.domain = lib.mkDefault config.networking.hostName;
-}

modules/nixos/mailserver.nix

@@ -1,30 +0,0 @@
-{config, ...}: {
-  mailserver = {
-    enable = true;
-    stateVersion = 3;
-    fqdn = "mail.${config.networking.domain}";
-    domains = ["${config.networking.domain}"];
-    x509.useACMEHost = config.mailserver.fqdn;
-    loginAccounts = {
-      "test@${config.networking.domain}" = {
-        hashedPasswordFile = builtins.toString config.age.secrets.mailserver-acc-test-pw.path;
-      };
-      "admin@${config.networking.domain}" = {
-        hashedPasswordFile = builtins.toString config.age.secrets.mailserver-acc-admin-pw.path;
-      };
-    };
-  };
-  services.nginx = {
-    enable = true;
-    virtualHosts = {
-      "mail.${config.networking.domain}" = {
-        forceSSL = true;
-        enableACME = true;
-      };
-    };
-  };
-  security.acme = {
-    acceptTerms = true;
-    defaults.email = "mtgmonket@gmail.com";
-  };
-}

modules/nixos/networking/domains/galaxious.de.nix

@@ -1,3 +0,0 @@
-{
-  networking.domain = "galaxious.de";
-}

modules/nixos/networking/hard-ssh.nix

@@ -1,19 +0,0 @@
-{
-  services.openssh = {
-    enable = true;
-    allowSFTP = false;
-    ports = [5522];
-    settings = {
-      PermitRootLogin = "no";
-      PasswordAuthentication = false;
-      KbdInteractiveAuthentication = true;
-    };
-    extraConfig = ''
-      AllowTcpForwarding no
-      AllowAgentForwarding no
-      MaxAuthTries 3
-      MaxSessions 4
-      TCPKeepAlive no
-    '';
-  };
-}

modules/nixos/networking/networks/109-199-104-83.nix

@@ -1,27 +0,0 @@
-{
-  networking = {
-    useNetworkd = true;
-    usePredictableInterfaceNames = true;
-    hostName = "109-199-104-83";
-    firewall = {
-      enable = true;
-      allowedTCPPorts = [80 443];
-      allowedUDPPorts = [80 443];
-    };
-  };
-  systemd.network = {
-    enable = true;
-    networks."40-wan" = {
-      matchConfig.Name = "enx0050565f4fff";
-      address = ["2a02:c207:2299:8419::1/64" "109.199.104.83/20"];
-      routes = [
-        {
-          Gateway = "109.199.96.1";
-          GatewayOnLink = true;
-        }
-        {Gateway = "fe80::1";}
-      ];
-      dns = ["2620:fe::fe" "9.9.9.9"];
-    };
-  };
-}

modules/nixos/networking/ssh-as-root.nix

@@ -1,3 +0,0 @@
-{lib, ...}: {
-  services.openssh.settings.PermitRootLogin = lib.mkForce "yes";
-}

modules/nixos/roundcube.nix

@@ -1,12 +0,0 @@
-{config, ...}: {
-  services.roundcube = {
-    enable = true;
-    hostName = "webmail.${config.networking.domain}";
-    extraConfig = ''
-      $config['imap_host'] = "ssl://${config.mailserver.fqdn}";
-      $config['smtp_host'] = "ssl://${config.mailserver.fqdn}";
-      $config['smtp_user'] = "%u";
-      $config['smtp_pass'] = "%p";
-    '';
-  };
-}

modules/nixos/zulip.nix

@@ -1,24 +0,0 @@
-{config, ...}: {
-  imports = [
-    ./mailserver.nix
-  ];
-  services.zulip = {
-    enable = true;
-    host = "chat.${config.networking.domain}";
-    camoKeyFile = builtins.toString config.age.secrets.zulip-camoKey.path;
-    rabbitmqPasswordFile = builtins.toString config.age.secrets.zulip-rabbitmqPassword.path;
-    secretKeyFile = builtins.toString config.age.secrets.zulip-secretKey.path;
-    sharedSecretKeyFile = builtins.toString config.age.secrets.zulip-sharedSecretKey.path;
-    avatarSaltKeyFile = builtins.toString config.age.secrets.zulip-avatarSaltKey.path;
-    zulipSettings = {
-      ZULIP_ADMINISTRATOR = "admin+zulip@${config.networking.domain}";
-      EXTERNAL_HOST = "chat.${config.networking.domain}";
-    };
-  };
-  services.postgresql.enable = true;
-  mailserver.loginAccounts = {
-    "zulip+admin@${config.networking.domain}" = {
-      hashedPasswordFile = builtins.toString config.age.secrets."mailserver-acc-zulip+admin-pw".path;
-    };
-  };
-}

modules/template.nix

@@ -1,11 +0,0 @@
-{
-  config,
-  lib,
-  pkgs,
-  modulesPath,
-  ...
-}: {
-  imports = [];
-  options = {};
-  config = {};
-}

pub-keys.nix

@@ -1,15 +1,9 @@
 {
   age.secrets = {
-    andromeda-pw.file = ./secrets/andromeda-pw.age;
+    secret0.file = ./secrets/secret0.age;
-    mtgmonkey-pw.file = ./secrets/mtgmonkey-pw.age;
+    secret1.file = ./secrets/secret1.age;
-    mailserver-acc-test-pw.file = ./secrets/mailserver-acc-test-pw.age;
+    secret2.file = ./secrets/secret2.age;
-    mailserver-acc-admin-pw.file = ./secrets/mailserver-acc-admin-pw.age;
+    secret3.file = ./secrets/secret3.age;
-    "mailserver-acc-zulip+admin-pw".file = ./secrets + "/mailserver-acc-zulip+admin-pw.age";
-    zulip-avatarSaltKey.file = ./secrets/zulip-avatarSaltKey.age;
-    zulip-camoKey.file = ./secrets/zulip-camoKey.age;
-    zulip-rabbitmqPassword.file = ./secrets/zulip-rabbitmqPassword.age;
-    zulip-secretKey.file = ./secrets/zulip-secretKey.age;
-    zulip-sharedSecretKey.file = ./secrets/zulip-sharedSecretKey.age;
   };
   pub-keys = {
     ssh = {

secrets/mailserver-acc-admin-pw.age

@@ -1,9 +0,0 @@
-age-encryption.org/v1
--> ssh-ed25519 mT2fyg Lt6EG5R9iQWuD/eDXM+vsablwqCn7wUBKFuNO3qcq04
-07jSpN+5/CJFCaBAEVB5TYqLEnGj8Fbt6z3qIVSijqU
--> ssh-ed25519 UHxfvA 8iIyIoZxJUYrvL9DFmleATVYs0TSZvPjSFqxSWYnVFs
-XDQQGlQXJqjjAqslyfJerVATPIO4vCxTPRWOcBuF7f8
--> ssh-ed25519 Xoin5w tE8Tx9cSJH+4eJoEpG8CVf9+C1WrurERvGG0kOLatG4
-YUUPvg6Ev3+7idthbcUeLeRZ+iE8yp+uirJojSt1gVg
---- FamPgM9+DjHiHQBkCmPaHe9aLLXIL3ZPCUtmtEtNOAI
-Ց<EFBFBD><EFBFBD>}<7D>_rT6<54>Uwz<77>|<7C><<3C>_<EFBFBD><0F><><EFBFBD><EFBFBD>5<><35><EFBFBD>!~<>N<EFBFBD><18>cǦi<>*<2A>E<10>M?H?<3F>QSb<53><62><EFBFBD><EFBFBD><EFBFBD>\<5C>۝<EFBFBD><DB9D>z<>K	?z<><7A>;<1C><>R<EFBFBD>Jp<4A>Ҷ<><D2B6>ɴs<C9B4>蔈<EFBFBD>y<EFBFBD><79>

secrets/secrets.nix

@@ -4,14 +4,8 @@ let
   lenovo = pub-keys.ssh.lenovo;
   _109-199-104-83 = pub-keys.ssh._109-199-104-83;
 in {
-  "andromeda-pw.age".publicKeys = [andromeda lenovo];
+  "secret0.age".publicKeys = [andromeda lenovo];
-  "mtgmonkey-pw.age".publicKeys = [andromeda lenovo];
+  "secret1.age".publicKeys = [andromeda lenovo];
-  "mailserver-acc-test-pw.age".publicKeys = [andromeda lenovo _109-199-104-83];
+  "secret2.age".publicKeys = [andromeda lenovo _109-199-104-83];
-  "mailserver-acc-admin-pw.age".publicKeys = [andromeda lenovo _109-199-104-83];
+  "secret3.age".publicKeys = [andromeda lenovo _109-199-104-83];
-  "mailserver-acc-zulip+admin-pw.age".publicKeys = [andromeda lenovo _109-199-104-83];
-  "zulip-avatarSaltKey.age".publicKeys = [andromeda lenovo _109-199-104-83];
-  "zulip-camoKey.age".publicKeys = [andromeda lenovo _109-199-104-83];
-  "zulip-rabbitmqPassword.age".publicKeys = [andromeda lenovo _109-199-104-83];
-  "zulip-secretKey.age".publicKeys = [andromeda lenovo _109-199-104-83];
-  "zulip-sharedSecretKey.age".publicKeys = [andromeda lenovo _109-199-104-83];
 }

secrets/zulip-rabbitmqPassword.age

@@ -1,9 +0,0 @@
-age-encryption.org/v1
--> ssh-ed25519 mT2fyg N+K4UqHYGQTzqq5wMhEs5ijh8a8uXarYy2BpWH2GAUY
-7mWlRNsudiBCr34QMXkzwkyRZa9K6pAPLX0phQBIH1A
--> ssh-ed25519 UHxfvA i5e8E+FMsG+n+jl5ASBYbPvnME7X58sMMAlYelZAm3A
-ARlV+vWRRsFVAsjdk+JgUMgp49muyGFF5g+iyzpyJQY
--> ssh-ed25519 Xoin5w 0EH6bLW0DwwVi8GMjq4ZjlBak1QQ0cxh/+KK/e1rPTY
-yIpSegzmBeJ86jApt23Kv9vZ2sVLC8dFYa9t43/x8MM
---- c4PhDnZ271mJc2sc7DSIRqVF503JSsZhBj2ANwcT2po
-PK<EFBFBD>F<0C><0E>!"<22><08><><EFBFBD>Mgo<67>/<2F><><EFBFBD>gF<67><46>0@<19><><EFBFBD>gA<15><>΄<EFBFBD>P<EFBFBD><50><EFBFBD>m+u<><75>Lo<4C>

users.nix

@@ -13,7 +13,7 @@ in {
       "andromeda" = {
         isNormalUser = true;
         description = "andromeda";
-        hashedPasswordFile = builtins.toString config.age.secrets.andromeda-pw.path;
+        hashedPasswordFile = builtins.toString config.age.secrets.secret0.path;
         extraGroups = [
           "networkmanager"
           "wheel"
@@ -22,7 +22,7 @@ in {
       "mtgmonkey" = {
         isNormalUser = true;
         description = "mtgmonkey";
-        hashedPasswordFile = builtins.toString config.age.secrets.mtgmonkey-pw.path;
+        hashedPasswordFile = builtins.toString config.age.secrets.secret1.path;
         extraGroups = [
           (lib.mkIf
             (machine == machines.lenovo)