wip

.git-blame-ignore-revs

@@ -0,0 +1,3 @@
+# nix fmt & statix
+f011c8d71ba09bd94ab04b8d771858b90a03fbf9
+3aff25b4486a143cd6282f8845c16216598e1c7e

.pre-commit-config.yaml

@@ -4,3 +4,11 @@ repos:
     hooks:
       - id: nixfmt-nix
         args: [--, --check]
+  - repo: local
+    hooks:
+      - id: statix
+        name: statix
+        entry: statix check
+        language: system
+        files: \.nix$
+        pass_filenames: false

flake.nix

@@ -50,9 +50,21 @@
     }:
 
     let
-      my-lib = import ./lib { lib = nixpkgs.lib; };
+      my-lib = import ./lib { inherit (nixpkgs) lib; };
 
-      overlays = [ ];
+      overlays = [
+        (_: prev: {
+          inherit
+            (
+              (import inputs.nixpkgs-unstable {
+                inherit (prev.stdenv.hostPlatform) system;
+                config.allowUnfree = true;
+              })
+            )
+            claude-code
+            ;
+        })
+      ];
 
       mkHost = my-lib.mkHost {
         inherit
@@ -82,11 +94,17 @@
           system = "x86_64-linux";
           users = [ ];
         };
+
+        # nixos-rebuild build-image --image-variant qemu --flake .#sandbox
+        sandbox = mkHost "sandbox" {
+          system = "x86_64-linux";
+          users = [ "gorazd" ];
+        };
       };
 
       nixosModules = import ./modules/nixos {
         inherit my-lib;
-        lib = nixpkgs.lib;
+        inherit (nixpkgs) lib;
       } { };
     }
     // flake-utils.lib.eachDefaultSystem (
@@ -95,15 +113,25 @@
         pkgs = nixpkgs.legacyPackages.${system};
       in
       {
-        packages = import ./packages {
-          inherit my-lib;
-          lib = nixpkgs.lib;
-        } (inputs // { inherit system; });
+        packages =
+          import ./packages
+            {
+              inherit my-lib;
+              inherit (nixpkgs) lib;
+            }
+            {
+              pkgs = nixpkgs.legacyPackages.${system};
+              pkgs-unstable = inputs.nixpkgs-unstable.legacyPackages.${system};
+              pkgs-master = inputs.nixpkgs-master.legacyPackages.${system};
+            };
 
         formatter = pkgs.nixfmt-tree;
 
         devShells.default = pkgs.mkShell {
-          packages = [ pkgs.pre-commit ];
+          packages = [
+            pkgs.pre-commit
+            pkgs.statix
+          ];
         };
       }
     );

hosts/live-iso/configuration.nix

@@ -1,5 +1,19 @@
-{ pkgs, lib, ... }:
 {
+  pkgs,
+  lib,
+  inputs,
+  ...
+}:
+let
+  keys = import ../../users/matej/keys.nix;
+in
+{
+  imports = [
+    inputs.self.nixosModules.openssh
+  ];
+
+  openssh.enable = true;
+
   image.modules.iso-installer = {
     isoImage.squashfsCompression = "zstd -Xcompression-level 6";
   };
@@ -10,17 +24,6 @@
   };
   boot.loader.grub.device = lib.mkDefault "/dev/sda";
 
-  services.openssh = {
-    enable = true;
-    ports = [ 22 ];
-    settings = {
-      PasswordAuthentication = false;
-      AllowUsers = null;
-      PermitRootLogin = "no";
-      StreamLocalBindUnlink = "yes";
-    };
-  };
-
   networking.firewall.allowedTCPPorts = [ 22 ];
 
   users = {
@@ -38,14 +41,9 @@
         "wheel"
         "users"
       ];
-      openssh.authorizedKeys.keys = [
-        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICQGLdINKzs+sEy62Pefng0bcedgU396+OryFgeH99/c janezicmatej"
-      ];
+      openssh.authorizedKeys.keys = keys.sshAuthorizedKeys;
     };
   };
 
-  # boot.extraModulePackages = [ pkgs.linuxPackages.r8125 ];
-  # boot.blacklistedKernelModules = [ "r8169" ];
-
   system.stateVersion = "25.05";
 }

hosts/matej-nixos/configuration.nix

@@ -21,22 +21,42 @@ in
     inputs.self.nixosModules.printing
     inputs.self.nixosModules.zsh
     inputs.self.nixosModules.gnupg
+    inputs.self.nixosModules.tuigreet
+    inputs.self.nixosModules.workstation
+    inputs.self.nixosModules.nvidia
+    inputs.self.nixosModules.initrd-ssh
   ];
 
-  # Modules
   yubikey.enable = true;
   openssh.enable = true;
   desktop.enable = true;
   printing.enable = true;
   zsh.enable = true;
   gnupg.enable = true;
+  workstation.enable = true;
+  tuigreet = {
+    enable = true;
+    command = "sway";
+  };
 
   sway = {
     enable = true;
     cmdFlags = [ "--unsupported-gpu" ];
   };
 
-  # Stylix theming
+  nvidia.enable = true;
+
+  initrd-ssh = {
+    enable = true;
+    networkModule = "r8169";
+    ip = {
+      enable = true;
+      address = "10.222.0.247";
+      gateway = "10.222.0.1";
+      interface = "enp5s0";
+    };
+  };
+
   stylix = {
     enable = true;
     polarity = "dark";
@@ -44,49 +64,22 @@ in
     base16Scheme = "${pkgs.base16-schemes}/share/themes/gruvbox-material-dark-medium.yaml";
   };
 
-  # Boot
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
-  # Locale
   time.timeZone = "Europe/Ljubljana";
   environment.variables.TZ = "America/New_York";
   i18n.defaultLocale = "en_US.UTF-8";
 
-  # Docker
-  virtualisation.docker = {
-    enable = true;
-    logDriver = "json-file";
-  };
-
-  # nix-ld for pip-installed binaries
-  # WARN:(matej) probably want to drop this in the future
+  # WARN:(@janezicmatej) nix-ld for running pip-installed binaries outside nix, probably want to drop this
   programs.nix-ld.enable = true;
   programs.nix-ld.libraries = options.programs.nix-ld.libraries.default;
 
-  # Security
   security.pki.certificateFiles = [ packages.ca-matheo-si ];
   services.gnome.gnome-keyring.enable = true;
 
-  # Services
   services.teamviewer.enable = true;
-  services.tailscale = {
-    enable = true;
-    useRoutingFeatures = "both";
-  };
 
-  # Greetd
-  services.greetd = {
-    enable = true;
-    settings = {
-      default_session = {
-        command = "${pkgs.tuigreet}/bin/tuigreet --time --remember --cmd sway";
-        user = "greeter";
-      };
-    };
-  };
-
-  # Programs
   programs.thunderbird.enable = true;
   programs._1password.enable = true;
   programs._1password-gui.enable = true;
@@ -98,16 +91,28 @@ in
     localNetworkGameTransfers.openFirewall = true;
   };
 
-  # Hardware
   hardware.keyboard.zsa.enable = true;
   hardware.ledger.enable = true;
+  hardware.bluetooth.powerOnBoot = true;
 
-  # System packages
-  environment.systemPackages = with pkgs; [
-    smartmontools
-  ];
+  networking = {
+    hostName = "matej-nixos";
+    useDHCP = false;
+    networkmanager.enable = true;
+    interfaces.enp5s0.ipv4.addresses = [
+      {
+        address = "10.222.0.247";
+        prefixLength = 24;
+      }
+    ];
+    firewall.enable = false;
+    defaultGateway = "10.222.0.1";
+    nameservers = [
+      "1.1.1.1"
+      "8.8.8.8"
+    ];
+  };
 
-  # XDG
   xdg.mime.defaultApplications = {
     "application/pdf" = "org.pwmt.zathura.desktop";
   };

hosts/matej-nixos/hardware-configuration.nix

@@ -1,6 +1,4 @@
-# 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.
+# autogenerated by 'nixos-generate-config'
 {
   config,
   lib,
@@ -14,45 +12,17 @@
     (modulesPath + "/installer/scan/not-detected.nix")
   ];
 
+  hardware.firmware = [ pkgs.linux-firmware ];
+
   boot.initrd.availableKernelModules = [
     "nvme"
     "xhci_pci"
     "ahci"
     "usbhid"
-    "usb_storage"
-    "sd_mod"
-  ];
-  boot.initrd.kernelModules = [
-    "dm-snapshot"
-    "r8169"
-  ];
-  boot.kernelModules = [
-    "kvm-amd"
   ];
+  boot.initrd.kernelModules = [ "dm-snapshot" ];
+  boot.kernelModules = [ "kvm-amd" ];
   boot.extraModulePackages = [ ];
-  boot.kernelParams = [
-    "ip=10.222.0.247::10.222.0.1:255.255.255.0::enp5s0:none"
-  ];
-
-  boot.initrd.network = {
-    enable = true;
-    ssh = {
-      enable = true;
-      port = 22;
-      hostKeys = [
-        "/etc/secrets/initrd/ssh_host_rsa_key"
-        "/etc/secrets/initrd/ssh_host_ed25519_key"
-      ];
-      authorizedKeys = [
-        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICQGLdINKzs+sEy62Pefng0bcedgU396+OryFgeH99/c janezicmatej"
-        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDk00+Km03epQXQs+xEwwH3zcurACzkEH+kDOPBw6RQe openpgp:0xB095D449"
-      ];
-    };
-    postCommands = ''
-      echo 'cryptsetup-askpass' >> /root/.profile
-    '';
-
-  };
 
   boot.initrd.luks.devices."cryptlvm".device =
     "/dev/disk/by-uuid/af0608c0-67cd-4ae4-b12c-252fa947da40";
@@ -75,76 +45,6 @@
     { device = "/dev/disk/by-uuid/ff4750e7-3a9f-42c2-bb68-c458a6560540"; }
   ];
 
-  # 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 = false;
-    hostName = "matej-nixos";
-    networkmanager.enable = true; # Easiest to use and most distros use this by default.
-    interfaces.enp5s0.ipv4.addresses = [
-      {
-        address = "10.222.0.247";
-        prefixLength = 24;
-      }
-    ];
-    firewall = {
-      enable = false;
-      allowedTCPPorts = lib.range 8800 8900;
-    };
-    defaultGateway = "10.222.0.1";
-    nameservers = [
-      "1.1.1.1"
-      "8.8.8.8"
-    ];
-
-  };
-  # networking.interfaces.enp4s0.useDHCP = lib.mkDefault true;
-
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
   hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
-
-  # TODO: maybe move later
-  hardware.bluetooth.enable = true; # enables support for Bluetooth
-  hardware.bluetooth.powerOnBoot = true; # powers up the default Bluetooth controller on boot
-
-  # Enable OpenGL
-  hardware.graphics = {
-    enable = true;
-  };
-
-  # Load nvidia driver for Xorg and Wayland
-  services.xserver.videoDrivers = [ "nvidia" ];
-
-  hardware.nvidia = {
-    # Modesetting is required.
-    modesetting.enable = true;
-
-    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
-    # Enable this if you have graphical corruption issues or application crashes after waking
-    # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead
-    # of just the bare essentials.
-    powerManagement.enable = false;
-
-    # Fine-grained power management. Turns off GPU when not in use.
-    # Experimental and only works on modern Nvidia GPUs (Turing or newer).
-    powerManagement.finegrained = false;
-
-    # Use the NVidia open source kernel module (not to be confused with the
-    # independent third-party "nouveau" open source driver).
-    # Support is limited to the Turing and later architectures. Full list of
-    # supported GPUs is at:
-    # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus
-    # Only available from driver 515.43.04+
-    open = true;
-
-    # Enable the Nvidia settings menu,
-    # accessible via `nvidia-settings`.
-    nvidiaSettings = true;
-
-    # Optionally, you may need to select the appropriate driver version for your specific GPU.
-    package = config.boot.kernelPackages.nvidiaPackages.stable;
-  };
 }

hosts/matej-tower/configuration.nix

@@ -8,9 +8,11 @@
 }:
 
 {
+  networking.hostName = "matej-tower";
   imports = [
     inputs.stylix.nixosModules.stylix
     inputs.lanzaboote.nixosModules.lanzaboote
+
     inputs.self.nixosModules.yubikey
     inputs.self.nixosModules.sway
     inputs.self.nixosModules.openssh
@@ -18,18 +20,29 @@
     inputs.self.nixosModules.printing
     inputs.self.nixosModules.zsh
     inputs.self.nixosModules.gnupg
+    inputs.self.nixosModules.tuigreet
+    inputs.self.nixosModules.workstation
+    inputs.self.nixosModules.initrd-ssh
   ];
 
-  # Modules
   yubikey.enable = true;
   openssh.enable = true;
   desktop.enable = true;
   printing.enable = true;
   zsh.enable = true;
   gnupg.enable = true;
+  workstation.enable = true;
+  tuigreet = {
+    enable = true;
+    command = "sway";
+  };
   sway.enable = true;
 
-  # Stylix theming
+  initrd-ssh = {
+    enable = true;
+    networkModule = "r8169";
+  };
+
   stylix = {
     enable = true;
     polarity = "dark";
@@ -37,7 +50,8 @@
     base16Scheme = "${pkgs.base16-schemes}/share/themes/gruvbox-material-dark-medium.yaml";
   };
 
-  # Boot - Lanzaboote secure boot
+  # lanzaboote secure boot
+  boot.kernelParams = [ "btusb.reset=1" ];
   boot.loader.efi.canTouchEfiVariables = true;
   boot.loader.systemd-boot.enable = lib.mkForce false;
   boot.lanzaboote = {
@@ -45,53 +59,26 @@
     pkiBundle = "/var/lib/sbctl";
   };
 
-  # Locale
   time.timeZone = "Europe/Ljubljana";
   environment.variables.TZ = "Europe/Ljubljana";
 
-  # Docker
-  virtualisation.docker = {
-    enable = true;
-    logDriver = "json-file";
-  };
-
-  # Services
-  services.tailscale = {
-    enable = true;
-    useRoutingFeatures = "both";
-  };
   services.udisks2.enable = true;
 
-  # Greetd
-  services.greetd = {
-    enable = true;
-    settings = {
-      default_session = {
-        command = "${pkgs.tuigreet}/bin/tuigreet --time --remember --cmd sway";
-        user = "greeter";
-      };
-    };
-  };
-
-  # Programs
   programs._1password.enable = true;
   programs._1password-gui.enable = true;
 
-  # Higher sample rate pipewire for audio equipment
+  # higher sample rate for audio equipment
   services.pipewire.extraConfig.pipewire.adjust-sample-rate = {
     "context.properties" = {
       "default.clock.rate" = 192000;
-      "defautlt.allowed-rates" = [ 192000 ];
+      "default.allowed-rates" = [ 192000 ];
     };
   };
 
-  # System packages
   environment.systemPackages = with pkgs; [
-    smartmontools
     easyeffects
   ];
 
-  # XDG
   xdg.mime.defaultApplications = {
     "application/pdf" = "org.pwmt.zathura.desktop";
   };

hosts/matej-tower/hardware-configuration.nix

@@ -1,6 +1,4 @@
-# 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.
+# autogenerated by 'nixos-generate-config'
 {
   config,
   lib,
@@ -20,13 +18,9 @@
     "nvme"
     "xhci_pci"
     "ahci"
-    "usb_storage"
-    "sd_mod"
-  ];
-  boot.initrd.kernelModules = [
-    "dm-snapshot"
-    "r8169"
+    "usbhid"
   ];
+  boot.initrd.kernelModules = [ "dm-snapshot" ];
   boot.kernelModules = [ "kvm-amd" ];
   boot.extraModulePackages = [ ];
 
@@ -51,34 +45,6 @@
     { device = "/dev/disk/by-uuid/e0952ef2-1a9a-4022-bbcf-b2f016384258"; }
   ];
 
-  boot.initrd.network = {
-    enable = true;
-    ssh = {
-      enable = true;
-      port = 22;
-      hostKeys = [
-        "/etc/secrets/initrd/ssh_host_rsa_key"
-        "/etc/secrets/initrd/ssh_host_ed25519_key"
-      ];
-      authorizedKeys = [
-        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICQGLdINKzs+sEy62Pefng0bcedgU396+OryFgeH99/c janezicmatej"
-        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDk00+Km03epQXQs+xEwwH3zcurACzkEH+kDOPBw6RQe openpgp:0xB095D449"
-      ];
-    };
-    postCommands = ''
-      echo 'cryptsetup-askpass' >> /root/.profile
-    '';
-
-  };
-
-  # 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.eno1.useDHCP = lib.mkDefault true;
-  # networking.interfaces.wlp11s0.useDHCP = lib.mkDefault true;
-
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
   hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
 }

hosts/sandbox/configuration.nix

@@ -0,0 +1,132 @@
+{
+  pkgs,
+  lib,
+  inputs,
+  ...
+}:
+{
+  imports = [
+    ./hardware-configuration.nix
+    inputs.self.nixosModules.vm-guest
+    inputs.self.nixosModules.desktop
+    inputs.self.nixosModules.zsh
+  ];
+
+  vm-guest.enable = true;
+  desktop.enable = true;
+  zsh.enable = true;
+
+  programs.labwc.enable = true;
+
+  # labwc stacking compositor with auto-login
+  services.greetd =
+    let
+      labwc-session = pkgs.writeShellScript "labwc-session" ''
+        export XDG_SESSION_TYPE=wayland
+        export XDG_CURRENT_DESKTOP=labwc:wlroots
+        # software renderer for qemu virtio-vga
+        export WLR_RENDERER=pixman
+        export WLR_DRM_NO_ATOMIC=1
+        exec ${pkgs.labwc}/bin/labwc
+      '';
+    in
+    {
+      enable = true;
+      settings = {
+        default_session = {
+          command = labwc-session;
+          user = "gorazd";
+        };
+        initial_session = {
+          command = labwc-session;
+          user = "gorazd";
+        };
+      };
+    };
+
+  users = {
+    groups.gorazd = {
+      gid = 1000;
+    };
+    users.gorazd = {
+      group = "gorazd";
+      uid = 1000;
+      isNormalUser = true;
+      home = "/home/gorazd";
+      createHome = true;
+      password = "sandbox";
+      extraGroups = [
+        "wheel"
+        "users"
+      ];
+    };
+  };
+
+  # 9p mounts for host files
+  fileSystems."/home/gorazd/projects" = {
+    device = "projects";
+    fsType = "9p";
+    options = [
+      "trans=virtio"
+      "version=9p2000.L"
+      "msize=65536"
+      "nofail"
+    ];
+  };
+
+  fileSystems."/mnt/host-claude" = {
+    device = "hostclaude";
+    fsType = "9p";
+    options = [
+      "trans=virtio"
+      "version=9p2000.L"
+      "msize=65536"
+      "nofail"
+    ];
+  };
+
+  fileSystems."/mnt/host-home" = {
+    device = "hosthome";
+    fsType = "9p";
+    options = [
+      "trans=virtio"
+      "version=9p2000.L"
+      "msize=65536"
+      "nofail"
+      "ro"
+    ];
+  };
+
+  # pre-auth claude-code from host config
+  systemd.services.claude-auth = {
+    description = "Copy claude-code credentials from host mount";
+    after = [
+      "mnt-host\\x2dclaude.mount"
+      "mnt-host\\x2dhome.mount"
+    ];
+    requires = [
+      "mnt-host\\x2dclaude.mount"
+      "mnt-host\\x2dhome.mount"
+    ];
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = pkgs.writeShellScript "claude-auth" ''
+        mkdir -p /home/gorazd/.claude
+        cp -a /mnt/host-claude/. /home/gorazd/.claude/
+        cp /mnt/host-home/.claude.json /home/gorazd/.claude.json || true
+        chown -R gorazd:gorazd /home/gorazd/.claude /home/gorazd/.claude.json
+      '';
+    };
+  };
+
+  environment.systemPackages = with pkgs; [
+    claude-code
+    labwc
+    sfwbar
+    foot
+    firefox
+  ];
+
+  system.stateVersion = "25.11";
+}

hosts/sandbox/hardware-configuration.nix

@@ -0,0 +1,18 @@
+{
+  lib,
+  modulesPath,
+  ...
+}:
+{
+  imports = [
+    (modulesPath + "/profiles/qemu-guest.nix")
+  ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-label/nixos";
+    autoResize = true;
+    fsType = "ext4";
+  };
+
+  boot.loader.grub.device = lib.mkDefault "/dev/vda";
+}

justfile

@@ -24,3 +24,37 @@ iso:
 # garbage collect old generations
 clean:
     sudo nix-collect-garbage $(nix eval --raw -f ./nix.nix nix.gc.options)
+
+# build sandbox VM image
+sandbox-build:
+    nixos-rebuild build-image --image-variant qemu --flake .#sandbox
+
+# run sandbox with GUI (ephemeral, changes discarded)
+sandbox-run:
+    nix shell nixpkgs#qemu -c qemu-system-x86_64 -enable-kvm -m 8G -smp 4 \
+      -drive file=$(find -L result -name '*.qcow2' | head -1),format=qcow2,snapshot=on \
+      -vga virtio -display gtk,zoom-to-fit=false \
+      -device virtio-serial-pci \
+      -chardev qemu-vdagent,id=ch1,name=vdagent,clipboard=on \
+      -device virtserialport,chardev=ch1,id=ch1,name=com.redhat.spice.0 \
+      -virtfs local,path=$HOME/git,mount_tag=projects,security_model=mapped-xattr,id=fs0 \
+      -virtfs local,path=$HOME/.claude,mount_tag=hostclaude,security_model=mapped-xattr,id=fs1 \
+      -virtfs local,path=$HOME,mount_tag=hosthome,security_model=mapped-xattr,id=fs2,readonly=on \
+      -nic user,hostfwd=tcp::2222-:22
+
+# run sandbox headless (ephemeral, changes discarded)
+sandbox-run-headless:
+    nix shell nixpkgs#qemu -c qemu-system-x86_64 -enable-kvm -m 8G -smp 4 \
+      -drive file=$(find -L result -name '*.qcow2' | head -1),format=qcow2,snapshot=on \
+      -virtfs local,path=$HOME/git,mount_tag=projects,security_model=mapped-xattr,id=fs0 \
+      -virtfs local,path=$HOME/.claude,mount_tag=hostclaude,security_model=mapped-xattr,id=fs1 \
+      -virtfs local,path=$HOME,mount_tag=hosthome,security_model=mapped-xattr,id=fs2,readonly=on \
+      -nic user,hostfwd=tcp::2222-:22 -nographic
+
+# ssh into running sandbox
+sandbox-ssh:
+    ssh -A -p 2222 gorazd@localhost
+
+# hot-mount a host directory into the running sandbox
+sandbox-mount path:
+    ssh -p 2222 gorazd@localhost "mkdir -p ~/mnt/$(basename {{path}}) && sshfs matej@10.0.2.2:{{path}} ~/mnt/$(basename {{path}})"

lib/autoDir.nix

@@ -1,6 +1,6 @@
 lib:
 
-# takes dir as an argument and creates an attribute set by importing all .nix files in that directory
+# import all .nix files in dir as attribute set
 dir:
 let
   readDir = builtins.readDir dir;

lib/mkHost.nix

@@ -15,15 +15,11 @@ let
   hostHWConfig = ../hosts/${name}/hardware-configuration.nix;
   hasHWConfig = builtins.pathExists hostHWConfig;
 
-  # Load NixOS-level user config (account, groups, SSH keys)
   userNixosConfigs = map (user: ../users/${user}/nixos.nix) (
     builtins.filter (user: builtins.pathExists ../users/${user}/nixos.nix) users
   );
 
-  # Load home-manager user config
-  userHMConfigs = nixpkgs.lib.genAttrs users (
-    user: import ../users/${user}/home-manager.nix
-  );
+  userHMConfigs = nixpkgs.lib.genAttrs users (user: import ../users/${user}/home-manager.nix);
 
 in
 nixpkgs.lib.nixosSystem {

modules/nixos/desktop.nix

@@ -12,26 +12,20 @@
   };
 
   config = lib.mkIf config.desktop.enable {
-    # Audio
     services.pipewire = {
       enable = true;
       pulse.enable = true;
     };
 
-    # Bluetooth
     hardware.bluetooth.enable = true;
     services.blueman.enable = true;
 
-    # Security
     security.polkit.enable = true;
 
-    # D-Bus
     services.dbus.enable = true;
 
-    # Player control
     services.playerctld.enable = true;
 
-    # XDG Portals
     xdg.portal = {
       enable = true;
       xdgOpenUsePortal = true;
@@ -41,7 +35,6 @@
       ];
     };
 
-    # Fonts
     fonts.packages = with pkgs; [
       font-awesome
       nerd-fonts.jetbrains-mono

modules/nixos/initrd-ssh.nix

@@ -0,0 +1,86 @@
+{
+  lib,
+  config,
+  ...
+}:
+let
+  # TODO:(@janezicmatej) restructure keys import
+  keys = import ../../users/matej/keys.nix;
+
+  # generate host keys for new machines: ./scripts/initrd-ssh-keygen.sh
+  keyDir = "/etc/secrets/initrd";
+
+  mkIpString =
+    {
+      address,
+      gateway,
+      netmask,
+      interface,
+      ...
+    }:
+    "${address}::${gateway}:${netmask}::${interface}:none";
+in
+{
+  options = {
+    initrd-ssh = {
+      enable = lib.mkEnableOption "SSH in initrd for remote LUKS unlock";
+
+      ip = {
+        enable = lib.mkEnableOption "static IP for initrd (otherwise DHCP)";
+
+        address = lib.mkOption {
+          type = lib.types.str;
+          example = "10.222.0.247";
+        };
+
+        gateway = lib.mkOption {
+          type = lib.types.str;
+          example = "10.222.0.1";
+        };
+
+        netmask = lib.mkOption {
+          type = lib.types.str;
+          default = "255.255.255.0";
+        };
+
+        interface = lib.mkOption {
+          type = lib.types.str;
+          example = "enp5s0";
+        };
+      };
+
+      authorizedKeys = lib.mkOption {
+        type = lib.types.listOf lib.types.str;
+        default = keys.sshAuthorizedKeys;
+      };
+
+      networkModule = lib.mkOption {
+        type = lib.types.str;
+        example = "r8169";
+      };
+    };
+  };
+
+  config = lib.mkIf config.initrd-ssh.enable {
+    boot.initrd.kernelModules = [ config.initrd-ssh.networkModule ];
+    boot.kernelParams = lib.mkIf config.initrd-ssh.ip.enable [
+      "ip=${mkIpString config.initrd-ssh.ip}"
+    ];
+
+    boot.initrd.network = {
+      enable = true;
+      ssh = {
+        enable = true;
+        port = 22;
+        hostKeys = [
+          "${keyDir}/ssh_host_rsa_key"
+          "${keyDir}/ssh_host_ed25519_key"
+        ];
+        inherit (config.initrd-ssh) authorizedKeys;
+      };
+      postCommands = ''
+        echo 'cryptsetup-askpass' >> /root/.profile
+      '';
+    };
+  };
+}

modules/nixos/nvidia.nix

@@ -0,0 +1,23 @@
+{
+  lib,
+  config,
+  ...
+}:
+{
+  options = {
+    nvidia.enable = lib.mkEnableOption "NVIDIA GPU support";
+  };
+
+  config = lib.mkIf config.nvidia.enable {
+    hardware.graphics.enable = true;
+
+    services.xserver.videoDrivers = [ "nvidia" ];
+
+    hardware.nvidia = {
+      modesetting.enable = true;
+      open = true;
+      nvidiaSettings = true;
+      package = config.boot.kernelPackages.nvidiaPackages.stable;
+    };
+  };
+}

modules/nixos/openssh.nix

@@ -10,7 +10,6 @@
       port = lib.mkOption {
         type = lib.types.port;
         default = 22;
-        description = "SSH server port";
       };
     };
   };

modules/nixos/sway.nix

@@ -12,7 +12,6 @@
       cmdFlags = lib.mkOption {
         type = lib.types.listOf lib.types.str;
         default = [ ];
-        description = "additional command line flags to pass to sway";
       };
     };
   };
@@ -24,23 +23,20 @@
       wrapperFeatures.gtk = true;
       extraOptions = config.sway.cmdFlags;
       extraSessionCommands = ''
-        # Fix for some Java AWT applications (e.g. Android Studio),
-        # use this if they aren't displayed properly:
+        # fix for java awt apps not rendering
         export _JAVA_AWT_WM_NONREPARENTING=1
       '';
     };
 
     environment.systemPackages = with pkgs; [
-      # default extra packages
       brightnessctl
       foot
       grim
       pulseaudio
       swayidle
-      # swaylock - use swaylock-effects instead
+      # use swaylock-effects instead of swaylock
       swaylock-effects
       wmenu
-      # additional things i like
       slurp
       wofi
       wl-clipboard

modules/nixos/tuigreet.nix

@@ -0,0 +1,33 @@
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}:
+{
+  options = {
+    tuigreet = {
+      enable = lib.mkEnableOption "greetd with tuigreet";
+
+      command = lib.mkOption {
+        type = lib.types.str;
+      };
+    };
+  };
+
+  config = lib.mkIf config.tuigreet.enable {
+    services.greetd = {
+      enable = true;
+      useTextGreeter = true;
+      settings = {
+        default_session = {
+          command = pkgs.writeShellScript "tuigreet-session" ''
+            ${pkgs.util-linux}/bin/setterm --blank 1 --powersave powerdown --powerdown 1
+            exec ${pkgs.tuigreet}/bin/tuigreet --time --remember --cmd ${config.tuigreet.command}
+          '';
+          user = "greeter";
+        };
+      };
+    };
+  };
+}

modules/nixos/vm-guest.nix

@@ -0,0 +1,55 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+{
+
+  options = {
+    vm-guest = {
+      enable = lib.mkEnableOption "VM guest configuration";
+    };
+  };
+
+  config = lib.mkIf config.vm-guest.enable {
+    services.qemuGuest.enable = true;
+    services.spice-vdagentd.enable = true;
+
+    # 9p for host file mounting
+    boot.initrd.availableKernelModules = [
+      "9p"
+      "9pnet_virtio"
+    ];
+    boot.kernelModules = [
+      "9p"
+      "9pnet_virtio"
+    ];
+
+    # ssh with agent forwarding for git and hot-mount
+    services.openssh = {
+      enable = true;
+      ports = [ 22 ];
+      settings = {
+        PasswordAuthentication = true;
+        PermitRootLogin = "no";
+        AllowAgentForwarding = true;
+        StreamLocalBindUnlink = "yes";
+      };
+    };
+
+    networking = {
+      useDHCP = true;
+      firewall.allowedTCPPorts = [ 22 ];
+    };
+
+    security.sudo.wheelNeedsPassword = false;
+
+    environment.systemPackages = with pkgs; [
+      curl
+      wget
+      htop
+      sshfs
+    ];
+  };
+}

modules/nixos/workstation.nix

@@ -0,0 +1,29 @@
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}:
+{
+  options = {
+    workstation = {
+      enable = lib.mkEnableOption "workstation utilities";
+    };
+  };
+
+  config = lib.mkIf config.workstation.enable {
+    virtualisation.docker = {
+      enable = true;
+      logDriver = "json-file";
+    };
+
+    services.tailscale = {
+      enable = true;
+      useRoutingFeatures = "both";
+    };
+
+    environment.systemPackages = with pkgs; [
+      smartmontools
+    ];
+  };
+}

packages/ahab.nix

@@ -1,7 +1,6 @@
-{ nixpkgs, system, ... }:
+{ pkgs, ... }:
 
 let
-  pkgs = import nixpkgs { inherit system; };
   version = "v0.3.2";
 in
 pkgs.rustPlatform.buildRustPackage {

packages/ca-matheo-si.nix

@@ -1,13 +1,12 @@
-{ nixpkgs, system, ... }:
+{ pkgs, ... }:
 
 let
-  pkgs = import nixpkgs { inherit system; };
   version = "C6r62em";
 in
 
 pkgs.stdenv.mkDerivation {
   pname = "ca-matheo-si";
-  version = version;
+  inherit version;
 
   src = pkgs.fetchurl {
     url = "http://ipa2.matheo.si/ipa/config/ca.crt";

packages/ggman.nix

@@ -1,8 +1,7 @@
-{ nixpkgs-master, system, ... }:
+{ pkgs-master, ... }:
 
 let
-  nixpkgs = nixpkgs-master;
-  pkgs = import nixpkgs { inherit system; };
+  pkgs = pkgs-master;
   version = "e24855c";
 in
 pkgs.buildGoModule.override

packages/git-linearize.nix

@@ -1,7 +1,6 @@
-{ nixpkgs, system, ... }:
+{ pkgs, ... }:
 
 let
-  pkgs = import nixpkgs { inherit system; };
   version = "main";
 in
 pkgs.stdenv.mkDerivation {

packages/releasectl.nix

@@ -1,28 +0,0 @@
-{ nixpkgs-master, system, ... }:
-
-let
-  nixpkgs = nixpkgs-master;
-  pkgs = import nixpkgs { inherit system; };
-  version = "v1.25.0";
-  python = pkgs.python313;
-in
-
-python.pkgs.buildPythonPackage rec {
-  pname = "releasectl";
-  version = "1.2.0";
-
-  src = pkgs.fetchurl {
-    url = "https://gitlab.com/flarenetwork/infra-public/pipeliner/-/package_files/216813866/download";
-    sha256 = "sha256-ScBG8BoOKDdOAHTFP+zwyk+Kfu31WoKQSRkutOvnJ5E";
-  };
-
-  format = "wheel"; # if it uses poetry/PEP517, otherwise "setuptools"
-  # nativeBuildInputs = [ python.pkgs.setuptools python.pkgs.wheel ];
-  # propagatedBuildInputs = with python.pkgs; [
-  #   # add runtime deps here if needed
-  # ];
-
-  # pyproject = true;
-  # build-system =  [ pkgs.python313Packages.hatchling ];
-
-}

scripts/initrd-ssh-keygen.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+KEY_DIR="/etc/secrets/initrd"
+
+echo "Generating initrd SSH host keys in $KEY_DIR"
+
+sudo mkdir -p "$KEY_DIR"
+
+if [[ ! -f "$KEY_DIR/ssh_host_rsa_key" ]]; then
+  sudo ssh-keygen -t rsa -N "" -f "$KEY_DIR/ssh_host_rsa_key"
+  echo "Generated: $KEY_DIR/ssh_host_rsa_key"
+else
+  echo "Exists: $KEY_DIR/ssh_host_rsa_key"
+fi
+
+if [[ ! -f "$KEY_DIR/ssh_host_ed25519_key" ]]; then
+  sudo ssh-keygen -t ed25519 -N "" -f "$KEY_DIR/ssh_host_ed25519_key"
+  echo "Generated: $KEY_DIR/ssh_host_ed25519_key"
+else
+  echo "Exists: $KEY_DIR/ssh_host_ed25519_key"
+fi
+
+echo "Done. Now run nixos-rebuild."

statix.toml

@@ -0,0 +1 @@
+disabled = ["repeated_keys"]

users/gorazd/home-manager.nix

@@ -17,6 +17,26 @@ in
     pkgs.git
   ];
 
+  # labwc desktop menu (right-click)
+  xdg.configFile."labwc/menu.xml".text = ''
+    <?xml version="1.0" encoding="UTF-8"?>
+    <openbox_menu>
+      <menu id="root-menu" label="">
+        <item label="Terminal"><action name="Execute"><command>foot</command></action></item>
+        <item label="Firefox"><action name="Execute"><command>firefox</command></action></item>
+        <item label="Files"><action name="Execute"><command>foot -e ranger</command></action></item>
+        <separator />
+        <item label="Reconfigure"><action name="Reconfigure" /></item>
+        <item label="Exit"><action name="Exit" /></item>
+      </menu>
+    </openbox_menu>
+  '';
+
+  # labwc autostart panel
+  xdg.configFile."labwc/autostart".text = ''
+    sfwbar &
+  '';
+
   programs.neovim = {
     enable = true;
     vimAlias = true;

users/matej/home-manager.nix

@@ -13,7 +13,7 @@ in
 {
   home.stateVersion = "24.11";
 
-  # TODO:(janezicmatej) do i need this here?
+  # TODO:(@janezicmatej) do i need this here?
   services.dunst.enable = true;
 
   home.packages = [
@@ -99,7 +99,6 @@ in
       luajit
       nodejs_22 # copilot
 
-      # treesitter
       tree-sitter
 
       # lua_fzf
@@ -109,7 +108,6 @@ in
       gnumake
       delta
 
-      # language server
       pyright
       typescript-language-server
       lua-language-server
@@ -117,7 +115,6 @@ in
       nil
       nixd
 
-      # formatters
       nixpkgs-fmt
       stylua
     ];