add nixdeploy and deployment-script

README.md

@@ -1 +1,18 @@
 # VCP Bundeslager 2022 Nixfiles
+
+## How to deploy
+```
+./deploy.sh apply switch --on vpn7
+```
+
+or to deploy all gateways:
+
+```
+./deploy.sh apply switch --on gateway
+```
+
+There is a special case for the nixdeploy-host:
+```
+./deploy.sh apply-local switch --sudo --node nixdeploy
+```
+

common/common/default.nix

@@ -1,64 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  imports =
-    [ #
-    ];
-
-  # Set your time zone.
-  time.timeZone = "Europe/Berlin";
-  networking.useDHCP = false;
-  networking.firewall.allowedTCPPorts = [ 19999 ];
-  services.netdata.enable = true;
-
-  # Select internationalisation properties.
-  i18n.defaultLocale = "en_US.UTF-8";
-  console = {
-    font = "Lat2-Terminus16";
-    keyMap = "de-latin1";
-  };
-
-  programs.zsh = {
-      enable = true;
-      histSize = 10000;
-      autosuggestions.enable = true;
-      enableBashCompletion = true;
-      syntaxHighlighting.enable = true;
-      promptInit = ''
-          source ~/.zkbd/$TERM-''${''${DISPLAY:t}:-''$VENDOR-''$OSTYPE}
-          [[ -n ''${key[Left]} ]] && bindkey "''${key[Left]}" backward-char
-          [[ -n ''${key[Right]} ]] && bindkey "''${key[Right]}" forward-char
-          bindkey "''${key[Up]}" up-line-or-search
-          bindkey "''${key[Home]}" beginning-of-line
-          bindkey "''${key[End]}" end-of-line
-          bindkey "''${key[Delete]}" delete-char
-          function command_not_found_handler() { command-not-found $1 }
-          alias cat='bat'
-          eval "$(direnv hook zsh)"
-          eval "$(starship init zsh)"
-      '';
-  };
-  programs.starship.enable = true;
-
-  programs.mtr.enable = true;
-  nix.settings = {
-        trusted-users = [ "@wheel" ];
-        auto-optimise-store = true;
-    };
-    nix.gc = {
-        automatic = true;
-        dates = "weekly";
-        options = "--delete-older-than 14d";
-    };
-    nix.extraOptions = ''
-        min-free = ${toString (100 * 1024 * 1024)}
-        max-free = ${toString (1024 * 1024 * 1024)}
-    '';
-
-  services.openssh = {
-        enable = true;
-        passwordAuthentication = false;
-        kbdInteractiveAuthentication = false;
-        permitRootLogin = "yes";
-    };
-}

common/default.nix

@@ -0,0 +1,76 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [ ../users ];
+
+  # Set your time zone.
+  time.timeZone = "Europe/Berlin";
+  # networking.useDHCP = false;  TODO: why was this globally disabled?
+  networking.firewall.allowedTCPPorts = [ 19999 ];
+  services.netdata.enable = true;
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+  console = {
+    font = "Lat2-Terminus16";
+    keyMap = "de-latin1";
+  };
+
+  environment.systemPackages = with pkgs; [
+    wget
+    vim
+    tmux
+    screen
+    mtr
+    tcpdump
+    bat
+    direnv
+    starship
+  ];
+
+  programs.zsh = {
+    enable = true;
+    histSize = 10000;
+    autosuggestions.enable = true;
+    enableBashCompletion = true;
+    syntaxHighlighting.enable = true;
+    promptInit = ''
+      source ~/.zkbd/$TERM-''${''${DISPLAY:t}:-$VENDOR-$OSTYPE}
+      [[ -n ''${key[Left]} ]] && bindkey "''${key[Left]}" backward-char
+      [[ -n ''${key[Right]} ]] && bindkey "''${key[Right]}" forward-char
+      bindkey "''${key[Up]}" up-line-or-search
+      bindkey "''${key[Home]}" beginning-of-line
+      bindkey "''${key[End]}" end-of-line
+      bindkey "''${key[Delete]}" delete-char
+      function command_not_found_handler() { command-not-found $1 }
+      alias cat='bat'
+      eval "$(direnv hook zsh)"
+      eval "$(starship init zsh)"
+    '';
+  };
+  programs.starship.enable = true;
+
+  programs.mtr.enable = true;
+  nix.settings = {
+    trusted-users = [ "@wheel" ];
+    auto-optimise-store = true;
+  };
+  nix.gc = {
+    automatic = true;
+    dates = "weekly";
+    options = "--delete-older-than 14d";
+  };
+  nix.extraOptions = ''
+    min-free = ${toString (100 * 1024 * 1024)}
+    max-free = ${toString (1024 * 1024 * 1024)}
+  '';
+
+  services.openssh = {
+    enable = true;
+    passwordAuthentication = false;
+    kbdInteractiveAuthentication = false;
+    permitRootLogin = "yes";
+  };
+
+  security.sudo.wheelNeedsPassword = false;
+}

deploy.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+DEPLOY_HOST="nixdeploy.bula22.de"
+
+rsync -r . ${DEPLOY_HOST}:bula-nixfiles/
+ssh -tA ${DEPLOY_HOST} "cd bula-nixfiles && colmena $@"

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1657114324,
+        "narHash": "sha256-fWuaUNXrHcz/ciHRHlcSO92dvV3EVS0GJQUSBO5JIB4=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a5c867d9fe9e4380452628e8f171c26b69fa9d3d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -4,22 +4,38 @@
   };
   outputs = { nixpkgs, ... }: {
     colmena = {
-
       meta = {
         nixpkgs = import nixpkgs {
           system = "x86_64-linux";
+          overlays = [ (final: prev: import ./packages final prev) ];
         };
       };
 
+      defaults = { config, lib, name, ... }: {
+        imports = [
+          (./. + "/hosts/${name}/configuration.nix")
+          ./modules
+          ./common
+        ];
 
-            pre-router = { config, pkgs, ... }:{
-                imports = [./hosts/pre-router/configuration.nix];
+        deployment.targetUser = null;
+      };
+
+      nixdeploy = {...}: {
+        deployment.targetHost = "nixdeploy.bula22.de";
+        deployment.allowLocalDeployment = true;
+      };
+
+      pre-router = { config, pkgs, ... }: {
         deployment.targetHost = "lightbuffet.entr0py.cloud";
         deployment.keys = {
 
         };
       };
 
+      pre-yate-n0emis = { config, pkgs, ... }: {
+        deployment.targetHost = "2001:470:7694::5e5";
+      };
     };
   };
 }

hosts/nixdeploy/configuration.nix

@@ -0,0 +1,40 @@
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  # Use the systemd-boot EFI boot loader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  networking.hostName = "nixdeploy";
+
+  networking.useNetworkd = true;
+  systemd.network = {
+    links."10-eth0" = {
+      matchConfig.MACAddress = "5e:1b:ed:a2:91:d1";
+      linkConfig.Name = "eth0";
+    };
+    networks."10-eth0" = {
+      matchConfig = {
+        Name = "eth0";
+      };
+      DHCP = "yes";
+      address = [ "2a01:4f8:1c0c:8221:1337:42:10:1/64" ];
+    };
+  };
+
+  environment.systemPackages = with pkgs; [ colmena ];
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "22.05"; # Did you read the comment?
+
+}

hosts/nixdeploy/hardware-configuration.nix

@@ -0,0 +1,37 @@
+# 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 = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/ab8ef984-07ee-47a4-a92d-59f57aee1018";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/73F5-5E82";
+      fsType = "vfat";
+    };
+
+  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.ens18.useDHCP = lib.mkDefault true;
+
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}
+

hosts/pre-router/configuration.nix

@@ -17,94 +17,12 @@
 
   networking.hostName = "pre-router"; # Define your hostname.
 
-  # Set your time zone.
-  time.timeZone = "Europe/Berlin";
-
   # The global useDHCP flag is deprecated, therefore explicitly set to false here.
   # Per-interface useDHCP will be mandatory in the future, so this generated config
   # replicates the default behaviour.
   networking.useDHCP = false;
   #networking.interfaces.ens18.useDHCP = false;
   #networking.interfaces.ens19.useDHCP = false;
-  networking.firewall.allowedTCPPorts = [ 19999 ];
-  services.netdata.enable = true;
-
-  # Select internationalisation properties.
-  i18n.defaultLocale = "en_US.UTF-8";
-  console = {
-    font = "Lat2-Terminus16";
-    keyMap = "de-latin1";
-  };
-
-
-  users.users.garionion = {
-        isNormalUser = true;
-        shell = pkgs.zsh;
-        packages =  with pkgs; [
-            wget vim screen mtr iperf
-            htop dstat dnsutils nettools tcpdump
-            git bat starship direnv
-        ];
-        hashedPassword = "$6$NMzXsfARs2HVA4iq$55uxWCANME/HsjIg9HmZyxqGwlr7RpJfCcMad2OhbmUiHhdnOh/v9TDwT3Vt0mu9HE37Fh3b1g2yyEa3Dxxg80";
-        extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
-        openssh.authorizedKeys.keys = ["ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAGw3Yuee8oSXSEqmoMzrqQrUizKV9sJbJMxAUC01wxvbxevAqFEpiGrznnu3K0HN3sfKItjqGkNDPDQ+mIlQwdwJAE0GyJIx9CMvo1RPugKSJ5rFh/vEgJTNMPaeYUb/L2rn3WEZHrZI5wwf+z4ljSHCVetAnaMKjk/+QQWgBHdvNImmA== gari@darwin"];
-    };
-    programs.zsh = {
-        enable = true;
-        histSize = 10000;
-        autosuggestions.enable = true;
-        enableBashCompletion = true;
-        syntaxHighlighting.enable = true;
-        promptInit = ''
-            source ~/.zkbd/$TERM-''${''${DISPLAY:t}:-''$VENDOR-''$OSTYPE}
-            [[ -n ''${key[Left]} ]] && bindkey "''${key[Left]}" backward-char
-            [[ -n ''${key[Right]} ]] && bindkey "''${key[Right]}" forward-char
-            bindkey "''${key[Up]}" up-line-or-search
-            bindkey "''${key[Home]}" beginning-of-line
-            bindkey "''${key[End]}" end-of-line
-            bindkey "''${key[Delete]}" delete-char
-            function command_not_found_handler() { command-not-found $1 }
-            alias cat='bat'
-            eval "$(direnv hook zsh)"
-            eval "$(starship init zsh)"
-        '';
-    };
-     programs.starship = {
-        enable = true;
-        settings = {
-        # add_newline = false;
-        # character = {
-        #   success_symbol = "[➜](bold green)";
-        #   error_symbol = "[➜](bold red)";
-        # };
-        # package.disabled = true;
-        };
-    };
-
-  programs.mtr.enable = true;
-  nix.settings = {
-        trusted-users = [ "@wheel" ];
-        auto-optimise-store = true;
-    };
-    nix.gc = {
-        automatic = true;
-        dates = "weekly";
-        options = "--delete-older-than 14d";
-    };
-    nix.extraOptions = ''
-        min-free = ${toString (100 * 1024 * 1024)}
-        max-free = ${toString (1024 * 1024 * 1024)}
-    '';
-
-  # List services that you want to enable:
-
-  services.openssh = {
-        enable = true;
-        passwordAuthentication = false;
-        kbdInteractiveAuthentication = false;
-        permitRootLogin = "yes";
-    };
-
 
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions

hosts/pre-yate-n0emis/configuration.nix

@@ -0,0 +1,38 @@
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  # Use the GRUB 2 boot loader.
+  boot.loader.grub.enable = true;
+  boot.loader.grub.version = 2;
+  boot.loader.grub.device = "/dev/sda";
+
+  networking.hostName = "pre-yate-n0emis";
+
+  networking.useNetworkd = true;
+  systemd.network = {
+    links."10-eth0" = {
+      matchConfig.MACAddress = "4a:a6:0d:b9:3b:82";
+      linkConfig.Name = "eth0";
+    };
+    networks."10-eth0" = {
+      matchConfig = {
+        Name = "eth0";
+      };
+      DHCP = "yes";
+    };
+  };
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "22.05"; # Did you read the comment?
+
+}

hosts/pre-yate-n0emis/hardware-configuration.nix

@@ -0,0 +1,31 @@
+# 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 = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/d3e87ae2-fb17-44f0-b113-14b185a2c845";
+      fsType = "ext4";
+    };
+
+  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.ens18.useDHCP = lib.mkDefault true;
+
+    hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

modules/default.nix

@@ -0,0 +1,7 @@
+{ ... }:
+
+{
+  imports = [
+    ./yate
+  ];
+}

modules/yate/default.nix

@@ -0,0 +1,61 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let cfg = config.services.yate;
+in {
+  options = {
+    services.yate = {
+      enable = mkEnableOption "yate";
+      config = mkOption {
+        type = with types; attrsOf anything;
+        default = { };
+      };
+    };
+  };
+  config = let
+    mkCfgFile = name: config:
+      let
+        content =
+          if (isString config) then config else generators.toINI { } config;
+      in { "yate/${name}.conf".text = content; };
+    environmentFiles = mkMerge
+      (map (key: mkCfgFile key (getAttr key cfg.config))
+        (attrNames cfg.config));
+  in mkIf cfg.enable {
+    environment.etc = environmentFiles;
+    systemd.services.yate = {
+      description = "YATE Telephony Server";
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network-online.target" "postgresql.service" ];
+
+      environment = { PWLIB_ASSERT_ACTION = "C"; };
+
+      serviceConfig = {
+        Type = "forking";
+        ExecStart =
+          "${pkgs.yate}/bin/yate -d -p /run/yate/yate.pid -c /etc/yate -F -s -q -DF -r -l /var/lib/yate/yate.log";
+        ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
+        User = "yate";
+        Group = "yate";
+        AmbientCapabilities = "CAP_NET_BIND_SERVICE";
+        RuntimeDirectory = "yate";
+        RuntimeDirectoryMode = "0755";
+        StateDirectory = "yate";
+        StateDirectoryMode = "0700";
+        PIDFile = "/run/yate/yate.pid";
+        TimeoutSec = 30;
+      };
+
+      reloadTriggers =
+        map (name: config.environment.etc."yate/${name}.conf".source)
+        (attrNames cfg.config);
+    };
+
+    users.users.yate = {
+      isSystemUser = true;
+      group = "yate";
+    };
+    users.groups.yate = { };
+  };
+}

packages/default.nix

@@ -0,0 +1,18 @@
+self: super: {
+  freeradius = super.freeradius.override {
+    withJson = true;
+    withRest = true;
+  };
+
+  python3 = let packageOverrides = final: prev: import ./python final prev;
+  in super.python3.override { inherit packageOverrides; };
+
+  yate = super.yate.overrideAttrs (old: {
+    configureFlags =
+      [ "--with-libpq=${self.postgresql.withPackages (ps: [ ])}" ];
+  });
+
+  t38modem = self.callPackage ./t38modem.nix { };
+  ptlib = self.callPackage ./ptlib.nix { };
+  opal = self.callPackage ./opal.nix { };
+}

packages/opal.nix

@@ -0,0 +1,19 @@
+{ stdenv, fetchurl, pkg-config, ptlib, openssl, libopus, spandsp }:
+
+let
+  pname = "opal";
+  version = "3.18.6";
+  hash = "sha256-L/0784mYza2p866Fal5pvvQ4IJjC9b5VSFwQ89jSYUw=";
+
+in stdenv.mkDerivation {
+  inherit pname version;
+
+  src = fetchurl {
+    url =
+      "mirror://sourceforge/project/opalvoip/v3.18%20Cygni/Stable%206/opal-${version}.tar.bz2";
+    inherit hash;
+  };
+
+  buildInputs = [ pkg-config ];
+  nativeBuildInputs = [ ptlib openssl libopus spandsp ];
+}

packages/ptlib-pidfile.patch

@@ -0,0 +1,43 @@
+diff --git a/src/ptlib/unix/channel.cxx b/src/ptlib/unix/channel.cxx
+index 2935644..80c8d09 100644
+--- a/src/ptlib/unix/channel.cxx
++++ b/src/ptlib/unix/channel.cxx
+@@ -34,6 +34,7 @@
+ #pragma implementation "channel.h"
+ #pragma implementation "indchan.h"
+ 
++#include <sys/uio.h>
+ #include <ptlib.h>
+ #include <sys/ioctl.h>
+ 
+diff --git a/src/ptlib/unix/svcproc.cxx b/src/ptlib/unix/svcproc.cxx
+index 4f21025..2c957ef 100644
+--- a/src/ptlib/unix/svcproc.cxx
++++ b/src/ptlib/unix/svcproc.cxx
+@@ -217,7 +217,7 @@ int PServiceProcess::InitialiseService()
+     pid_t pid;
+ 
+     {
+-      ifstream pidfile(pidfilename);
++      ifstream pidfile((const char *)pidfilename);
+       if (!pidfile.is_open()) {
+         cout << "Could not open pid file: \"" << pidfilename << "\""
+                 " - " << strerror(errno) << endl;
+@@ -384,7 +384,7 @@ int PServiceProcess::InitialiseService()
+   // Run as a daemon, ie fork
+ 
+   if (!pidfilename) {
+-    ifstream pidfile(pidfilename);
++    ifstream pidfile((const char *)pidfilename);
+     if (pidfile.is_open()) {
+       pid_t pid;
+       pidfile >> pid;
+@@ -412,7 +412,7 @@ int PServiceProcess::InitialiseService()
+       cout << "Daemon started with pid " << pid << endl;
+       if (!pidfilename) {
+         // Write out the child pid to magic file in /var/run (at least for linux)
+-        ofstream pidfile(pidfilename);
++        ofstream pidfile((const char *)pidfilename);
+         if (pidfile.is_open())
+           pidfile << pid;
+         else

packages/ptlib.nix

@@ -0,0 +1,26 @@
+{ stdenv, fetchurl, pkg-config, flex, bison }:
+
+let
+  pname = "ptlib";
+  version = "2.18.6";
+  hash = "sha256-31HndbsCS73uU0yvJW7/YA7s56+9V2itafuLPqllE2Y=";
+
+in stdenv.mkDerivation {
+  inherit pname version;
+
+  src = fetchurl {
+    url =
+      "mirror://sourceforge/project/opalvoip/v3.18%20Cygni/Stable%206/ptlib-${version}.tar.bz2";
+    inherit hash;
+  };
+
+  #patches = [
+  #  ./ptlib-pidfile.patch
+  #];
+
+  buildInputs = [ pkg-config ];
+  nativeBuildInputs = [ flex bison ];
+
+  #NIX_CFLAGS_COMPILE = [ "-fpermissive" ];
+  #CXXFLAGS = "-std=gnu++98";
+}

packages/python/default.nix

@@ -0,0 +1,4 @@
+self: super: {
+  python-yate = self.callPackage ./python-yate { };
+  ywsd = self.callPackage ./ywsd { };
+}

packages/python/python-yate/default.nix

@@ -0,0 +1,15 @@
+{ lib, buildPythonPackage, fetchPypi, async-timeout }:
+
+buildPythonPackage rec {
+  pname = "python-yate";
+  version = "0.3.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "5e806802dc47a35c855b60cd459a2c98fb0109c7fc099f3e9f83a1a38abf9f90";
+  };
+
+  propagatedBuildInputs = [ async-timeout ];
+
+  pythonImportsCheck = [ "yate" ];
+}

packages/python/ywsd/count.patch

@@ -0,0 +1,14 @@
+diff --git a/ywsd/objects.py b/ywsd/objects.py
+index 4ce29fb..a535e76 100644
+--- a/ywsd/objects.py
++++ b/ywsd/objects.py
+@@ -178,7 +178,8 @@ class ActiveCall:
+     async def is_active_call(cls, username, x_eventphone_id, db_connection):
+         return (
+             await db_connection.scalar(
+-                cls.table.count()
++                sa.select(sa.func.count('*'))
++                .select_from(cls.table)
+                 .where(cls.table.c.username == username)
+                 .where(cls.table.c.x_eventphone_id == x_eventphone_id)
+             )

packages/python/ywsd/default.nix

@@ -0,0 +1,20 @@
+{ lib, buildPythonApplication, fetchFromGitHub, aiopg, aiohttp, python-yate
+, pyyaml, sqlalchemy }:
+
+buildPythonApplication rec {
+  pname = "ywsd";
+  version = "0.11.0";
+
+  src = fetchFromGitHub {
+    owner = "eventphone";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-9DloJSKR3Ck4Bsc0ICcAAD6LHIMeOHTe2rCx6nPINT4=";
+  };
+
+  patches = [ ./count.patch ];
+
+  propagatedBuildInputs = [ aiopg aiohttp python-yate pyyaml sqlalchemy ];
+
+  doCheck = false;
+}

packages/t38modem.nix

@@ -0,0 +1,33 @@
+{ stdenv, fetchFromGitHub, pkg-config, opal, ptlib }:
+
+let
+  pname = "t38modem";
+  version = "4.6.0";
+  hash = "sha256-631xF1Q9Nd0sMBEHtqgqn1SEUEZweneqLJMNVEO2DJo=";
+
+in stdenv.mkDerivation {
+  inherit pname version;
+  src = fetchFromGitHub {
+    owner = "T38modem";
+    repo = pname;
+    rev = "v${version}";
+    inherit hash;
+  };
+
+  buildInputs = [ pkg-config ];
+
+  nativeBuildInputs = [ ptlib opal ];
+
+  buildFlags = [
+    "PTLIBDIR=${ptlib}/share/ptlib"
+    "USE_OPAL=1"
+    "OPALDIR=${opal}/share/opal"
+  ];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp t38modem $out/bin
+  '';
+
+  NIX_CFLAGS_COMPILE = [ "-Wno-narrowing" ];
+}

users/default.nix

@@ -0,0 +1,8 @@
+{ ... }:
+
+{
+  imports = [
+    ./garionion
+    ./n0emis
+  ];
+}

users/garionion/default.nix

@@ -1,15 +1,21 @@
-{ config, pkgs, ... }:
-{
+{ config, pkgs, ... }: {
   users.users.garionion = {
     isNormalUser = true;
     shell = pkgs.zsh;
     packages = with pkgs; [
-            wget vim screen mtr iperf
-            htop dstat dnsutils nettools tcpdump
-            git bat starship direnv
+      iperf
+      htop
+      dstat
+      dnsutils
+      nettools
+      tcpdump
+      git
     ];
-        hashedPassword = "$6$NMzXsfARs2HVA4iq$55uxWCANME/HsjIg9HmZyxqGwlr7RpJfCcMad2OhbmUiHhdnOh/v9TDwT3Vt0mu9HE37Fh3b1g2yyEa3Dxxg80";
+    hashedPassword =
+      "$6$NMzXsfARs2HVA4iq$55uxWCANME/HsjIg9HmZyxqGwlr7RpJfCcMad2OhbmUiHhdnOh/v9TDwT3Vt0mu9HE37Fh3b1g2yyEa3Dxxg80";
     extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
-        openssh.authorizedKeys.keys = ["ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAGw3Yuee8oSXSEqmoMzrqQrUizKV9sJbJMxAUC01wxvbxevAqFEpiGrznnu3K0HN3sfKItjqGkNDPDQ+mIlQwdwJAE0GyJIx9CMvo1RPugKSJ5rFh/vEgJTNMPaeYUb/L2rn3WEZHrZI5wwf+z4ljSHCVetAnaMKjk/+QQWgBHdvNImmA== gari@darwin"];
+    openssh.authorizedKeys.keys = [
+      "ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAGw3Yuee8oSXSEqmoMzrqQrUizKV9sJbJMxAUC01wxvbxevAqFEpiGrznnu3K0HN3sfKItjqGkNDPDQ+mIlQwdwJAE0GyJIx9CMvo1RPugKSJ5rFh/vEgJTNMPaeYUb/L2rn3WEZHrZI5wwf+z4ljSHCVetAnaMKjk/+QQWgBHdvNImmA== gari@darwin"
+    ];
   };
 }

users/n0emis/default.nix

@@ -0,0 +1,16 @@
+{ config, pkgs, ... }:
+
+{
+  users.users.n0emis = {
+    isNormalUser = true;
+    shell = pkgs.zsh;
+    packages = with pkgs; [ htop dnsutils nettools tcpdump git jq tree ];
+    hashedPassword =
+      "$6$ZvdWexF9y28IrjyW$lxz27/eFjDZWUPY7Lox0aDXO0.TgMBzygZqNSp1HU7itaMI0KbtAOX2H3uZ9hlEo21z.K.JEE.V/b.HpmN.4y1";
+    extraGroups = [ "wheel" ];
+    openssh.authorizedKeys.keys = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEcOPtW5FWNIdlMQFoqeyA1vHw+cA8ft8oXSbXPzQNL9 n0emis@n0emis.eu"
+      "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQC8xqVakxJ+AwcIrS/wyL03N++pE09epwMFlIMXWvlpwwEp1J/0H7nygwxk/9LIZdabs/ETWn0s8oHAkc7YR1c6ajSTCDiZEYATAWt7t8t4Gw/80c8u8T50lIqmiDEEVbOVv3Vta/pAN4hAUp9U5DpYCkQbvF+NKKcK3Yp8d9usNC6ohqgTK+IGAEdMhvpbbNppDMXoWHuynBzUX7TS6ST6yEr0tD+CBbCpbfcMuwTI3lNtfywEVpuFaeHqDZx2QDrEX4bg0dRKgQstbXYdqmBfnOiBpUr8Wyl8U1J24rN+E07pBw/8KDGWbVg19/Ex8o4ht/p5voUfKVjD/DwWXTLntBirjfAgQAm4GH/qP4x3zNiTtlYlQFbXSk6VEVrTrxCB5rTWvGnhg31tk5P3YwvagDmGABazY5s/8tlttSc1yWBctWQJCjxSqcCLekxG4D1rVuGKCKOZgflQ9QFdQlKycInPBek3zi0i3GYkE1YnNFye5ggOnxT8qGuKjfdtZI9qvMJQO8lbEDzbYQvNns1V/k4ZobiihYwrG5TJUzZFEpMYetDK6tI8BRU11d+ja0jWzguj5/7wc0nrr/BiZ8FkAr2fZ60j2aI5kG0s3qjbrQbB/RXaGP9hRU0+480+IokNJJIcjv5iwH5ophdrjC8GH4So2kPPt0NXob1yNysdjw== n0emis@noemis.me (OLD)"
+    ];
+  };
+}