hetzner_benchmark: init (#21)

Reviewed-on: https://codeberg.org/leana8959/.files/pulls/21
Co-authored-by: Léana 江 <leana.jiang+git@icloud.com>
Co-committed-by: Léana 江 <leana.jiang+git@icloud.com>

nix/configurations/hetzner_benchmark/home/dev.nix

@@ -0,0 +1,23 @@
+{
+  programs.git = {
+    enable = true;
+    signing.signByDefault = false; # no need to setup the key
+  };
+
+  programs.gpg.enable = true;
+
+  nix = {
+    settings = {
+      extra-substituters = [
+        "https://ghc-nix.cachix.org"
+        "https://haskell-language-server.cachix.org"
+        "https://cache.iog.io"
+      ];
+      extra-trusted-public-keys = [
+        "ghc-nix.cachix.org-1:ziC/I4BPqeA4VbtOFpFpu6D1t6ymFvRWke/lc2+qjcg="
+        "haskell-language-server.cachix.org-1:juFfHrwkOxqIOZShtC4YC1uT1bBcq2RSvC7OMKx0Nz8="
+        "hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ="
+      ];
+    };
+  };
+}

nix/configurations/hetzner_benchmark/home/programs.nix

@@ -0,0 +1,54 @@
+# TODO: remove some packages for this machine
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+{
+  home.sessionVariables =
+    let
+      fishCfg = config.programs.fish;
+    in
+    {
+      "SHELL" = lib.mkIf fishCfg.enable (lib.getExe fishCfg.package);
+    };
+
+  home.packages = [
+    pkgs.stow
+    pkgs.zip
+    pkgs.unzip
+    pkgs.gnutar
+    pkgs.p7zip
+    pkgs.bc
+    pkgs.dig
+    pkgs.hutils
+
+    # pretty tui tools
+    pkgs.du-dust
+    pkgs.tokei
+    pkgs.hyperfine
+    pkgs.watchexec
+    pkgs.onefetch
+    pkgs.just
+  ];
+
+  programs = {
+    neovim = {
+      enable = true;
+      defaultEditor = true;
+    };
+    lazygit.enable = true;
+    fish.enable = true;
+    starship.enable = true;
+    tmux.enable = true;
+    direnv.enable = true;
+    ripgrep.enable = true;
+
+    btop.enable = true;
+  };
+
+  services = {
+    gpg-agent.enable = true;
+  };
+}

nix/configurations/hetzner_benchmark/nixos/hardware-configuration.nix

@@ -0,0 +1,35 @@
+# 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 + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "ahci"
+    "nvme"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-amd" ];
+  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.enp41s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

nix/configurations/hetzner_benchmark/nixos/misc.nix

@@ -0,0 +1,13 @@
+{
+  boot.loader.grub.enable = true;
+
+  services.openssh.enable = true;
+
+  users.users = {
+    "root".openssh.authorizedKeys.keys = import ../../../identities.nix ++ [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFza3UN1gWQqh//FkJBzmssQ4lxHdllQGfqPHzG4LQI8 benchmark-machine"
+    ];
+  };
+
+  system.stateVersion = "25.05";
+}