chore: ignore nixfmt reformat in git blame

Reviewed-on: #80

.git-blame-ignore-revs

@@ -0,0 +1,2 @@
+# nixfmt reformat
+2231d2fc3fb4dc140c5f3257523dcdb513ac4dea

.gitignore

@@ -8,3 +8,7 @@ result-*
 
 # vim
 *.swp
+
+# devenv
+.devenv*
+devenv.local.nix

devenv.lock

@@ -0,0 +1,65 @@
+{
+  "nodes": {
+    "devenv": {
+      "locked": {
+        "dir": "src/modules",
+        "lastModified": 1790701375,
+        "narHash": "sha256-0FpLHIRDYiyo3EMTnMQSobZQknZaa3JuWo6vmMCK76o=",
+        "owner": "cachix",
+        "repo": "devenv",
+        "rev": "fe20b5cba7ab5e93ae73f956a8d3efc50e1753f4",
+        "type": "github"
+      },
+      "original": {
+        "dir": "src/modules",
+        "owner": "cachix",
+        "repo": "devenv",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "inputs": {
+        "nixpkgs-src": "nixpkgs-src"
+      },
+      "locked": {
+        "lastModified": 1789506231,
+        "narHash": "sha256-vNkJbtmqyBfFhn/HnzQo4ROuoyYWuy/allqTfJb4kMY=",
+        "owner": "cachix",
+        "repo": "devenv-nixpkgs",
+        "rev": "c2f38fe7f9e04d9aadd354d380f2bd40531d9737",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "ref": "rolling",
+        "repo": "devenv-nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1789370336,
+        "narHash": "sha256-6RSEDHIWQtesQKWSu5qRai8L2h4KgCgMEfJHstW99G4=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "c7def046b9a883d46974757852106483d741586f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devenv": "devenv",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

devenv.nix

@@ -0,0 +1,31 @@
+{ pkgs, ... }:
+
+{
+  packages = with pkgs; [
+    # issue tracker (git.0x29a.ch)
+    tea
+
+    # nix tooling
+    nixfmt # official formatter (RFC 166 style)
+    statix # lints for nix anti-patterns
+    deadnix # finds unused bindings and arguments
+    nixd # language server
+    nvd # diff system generations
+  ];
+
+  scripts = {
+    lint.exec = ''
+      set -e
+      statix check .
+      # hardware-configuration.nix is generated; statix skips it via statix.toml
+      deadnix --fail --exclude hosts/*/hardware-configuration.nix -- .
+    '';
+    fmt.exec = ''
+      nixfmt $(git ls-files '*.nix')
+    '';
+  };
+
+  enterShell = ''
+    echo "nixconfig devenv: tea, lint, fmt"
+  '';
+}

devenv.yaml

@@ -0,0 +1,3 @@
+inputs:
+  nixpkgs:
+    url: github:cachix/devenv-nixpkgs/rolling

flake.lock

@@ -8,11 +8,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1782949081,
-        "narHash": "sha256-vp6Y/Grm98ESt6ceOkWiHWyZRDV3J1RID4w+6NWK9yA=",
+        "lastModified": 1788450739,
+        "narHash": "sha256-glZLQlzIn1fXH6PazR2iUmTo7kzzyYSshrWhLS9TqCU=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "17c9d6cdfc60c64f4ee8d306f9bc0b4ccb51481e",
+        "rev": "31729ca8cbdb4fa927b34e5f4353e6a83f39e993",
         "type": "github"
       },
       "original": {
@@ -28,11 +28,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1784546264,
-        "narHash": "sha256-jxVr5EHMYAOkFvS2k0abIvt6NqyshyWmiHHzV17sT2g=",
+        "lastModified": 1790819692,
+        "narHash": "sha256-rvubAPbh3QCliic3sAK+CXTrPCGgJstY52OTs/5H1J4=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "e3dea8e4792b09a6c0eb5836b0284ad05b1acba0",
+        "rev": "c8ecc29e5175452bee4a2aa1ba2383856d795338",
         "type": "github"
       },
       "original": {
@@ -43,11 +43,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1784497964,
-        "narHash": "sha256-vlHUuqAcbcH2RKmHbPiuQzbv1pnzzavXnI62RD0bqCU=",
+        "lastModified": 1790689126,
+        "narHash": "sha256-ilerN1WLSvF+HMjziC/Wv99J5y02maDH+6hZPwsORKg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "241313f4e8e508cb9b13278c2b0fa25b9ca27163",
+        "rev": "b4fd65b198c599cbe814fcb9f42d25d021595ec9",
         "type": "github"
       },
       "original": {
@@ -66,11 +66,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1784057377,
-        "narHash": "sha256-yycNej5//EsRbV10moBoh+/63vXEwZD1ZFEiRm6C9rQ=",
+        "lastModified": 1790541651,
+        "narHash": "sha256-/496IQz8qNWHHLnc3Zvr0l4uxJ34igNhJhn7ZKAefFk=",
         "owner": "nix-community",
         "repo": "nixvim",
-        "rev": "07180a087e4a00720dc0731cbcd8dec796974381",
+        "rev": "5980a626794486abad69fca7667f9c11dfbc3bd7",
         "type": "github"
       },
       "original": {
@@ -86,11 +86,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1784556533,
-        "narHash": "sha256-tlcP2x7d+ldS3BypTcInqrsOhi6BPuSSTeubfBMmm8Y=",
+        "lastModified": 1790718664,
+        "narHash": "sha256-LWil4xgSyqIFZ9sydvL1glFOoiqAOknWUwykC4sqxuY=",
         "owner": "noctalia-dev",
         "repo": "noctalia-shell",
-        "rev": "815635cf7dc810616c9e6ecf4b9b4f4c54e69905",
+        "rev": "fd9759c892fe5034b682c185695f1bee121cd5b3",
         "type": "github"
       },
       "original": {
@@ -108,6 +108,7 @@
       }
     },
     "systems": {
+      "flake": false,
       "locked": {
         "lastModified": 1774449309,
         "narHash": "sha256-brhZ8DmuGtzkCYHJg4HEd602amKm89Y9ytsFZ5uWD1w=",

flake.nix

@@ -17,29 +17,38 @@
     };
   };
 
-  outputs = { self, nixpkgs, home-manager, nixvim, ... }@inputs:
-  let
-    mkHost = hostName: nixpkgs.lib.nixosSystem {
-      system = "x86_64-linux";
-      specialArgs = { inherit inputs; };
-      modules = [
-        ./hosts/${hostName}/hardware-configuration.nix
-        ./hosts/${hostName}/configuration.nix
-        home-manager.nixosModules.home-manager
-        {
-          home-manager.extraSpecialArgs = { inherit inputs; };
-          home-manager.users.aaron.imports = [
-            nixvim.homeModules.nixvim
-            ./users/aaron/home.nix
+  outputs =
+    {
+      nixpkgs,
+      home-manager,
+      nixvim,
+      ...
+    }@inputs:
+    let
+      mkHost =
+        hostName:
+        nixpkgs.lib.nixosSystem {
+          system = "x86_64-linux";
+          specialArgs = { inherit inputs; };
+          modules = [
+            ./hosts/${hostName}/hardware-configuration.nix
+            ./hosts/${hostName}/configuration.nix
+            home-manager.nixosModules.home-manager
+            {
+              home-manager.extraSpecialArgs = { inherit inputs; };
+              home-manager.users.aaron.imports = [
+                nixvim.homeModules.nixvim
+                ./users/aaron/home.nix
+              ];
+            }
           ];
-        }
-      ];
+        };
+    in
+    {
+      nixosConfigurations = {
+        default = mkHost "default";
+        neon = mkHost "neon";
+        argon = mkHost "argon";
+      };
     };
-  in {
-    nixosConfigurations = {
-      default = mkHost "default";
-      neon    = mkHost "neon";
-      argon   = mkHost "argon";
-    };
-  };
 }

hosts/argon/configuration.nix

@@ -1,7 +1,6 @@
-{ config, pkgs, inputs, ... }:
-
 {
   imports = [
+    ../../modules/nixos/appimage.nix
     ../../modules/nixos/astro.nix
     ../../modules/nixos/audio.nix
     ../../modules/nixos/bootloader.nix
@@ -10,7 +9,6 @@
     ../../modules/nixos/claudecode.nix
     ../../modules/nixos/drives.nix
     ../../modules/nixos/gnupg.nix
-    ../../modules/nixos/gnuradio.nix
     ../../modules/nixos/graphics.nix
     ../../modules/nixos/greetd.nix
     ../../modules/nixos/locales.nix
@@ -25,6 +23,7 @@
     ../../modules/nixos/steam.nix
     ../../modules/nixos/thunar.nix
     ../../modules/nixos/users.nix
+    ../../modules/nixos/vial.nix
   ];
 
   # set hostname
@@ -33,4 +32,3 @@
   # install state version
   system.stateVersion = "25.11"; # Don't change
 }
-

hosts/argon/hardware-configuration.nix

@@ -1,38 +1,54 @@
 # 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, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
 
 {
-  imports =
-    [ (modulesPath + "/installer/scan/not-detected.nix")
-    ];
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
 
-  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
+  boot.initrd.availableKernelModules = [
+    "nvme"
+    "xhci_pci"
+    "ahci"
+    "usbhid"
+    "usb_storage"
+    "sd_mod"
+  ];
   boot.initrd.kernelModules = [ "dm-crypt dm-mod" ];
   boot.initrd.luks.devices."cryptroot".device = "/dev/disk/by-label/nixcrypt";
   boot.kernelModules = [ ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
-    { device = "/dev/mapper/lvmroot-root";
-      fsType = "ext4";
-    };
+  fileSystems."/" = {
+    device = "/dev/mapper/lvmroot-root";
+    fsType = "ext4";
+  };
 
-  fileSystems."/boot" =
-    { device = "/dev/disk/by-uuid/AC1C-20EB";
-      fsType = "vfat";
-      options = [ "fmask=0022" "dmask=0022" ];
-    };
-
-  fileSystems."/home" =
-    { device = "/dev/mapper/lvmroot-home";
-      fsType = "ext4";
-    };
-
-  swapDevices =
-    [ { device = "/dev/mapper/lvmroot-swap"; }
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/AC1C-20EB";
+    fsType = "vfat";
+    options = [
+      "fmask=0022"
+      "dmask=0022"
     ];
+  };
+
+  fileSystems."/home" = {
+    device = "/dev/mapper/lvmroot-home";
+    fsType = "ext4";
+  };
+
+  swapDevices = [
+    { device = "/dev/mapper/lvmroot-swap"; }
+  ];
 
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
   hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;

hosts/default/configuration.nix

@@ -1,10 +1,13 @@
 # 0x29a nixos conifg
 
-{ pkgs, lib, ... }:
+{ pkgs, ... }:
 
 {
   # use flakes
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
 
   # configure bootloader
   boot.loader.systemd-boot.enable = false;
@@ -29,7 +32,7 @@
   services.qemuGuest.enable = true;
 
   # networking
-  networking.hostName = "nixos"; 
+  networking.hostName = "nixos";
   networking.networkmanager.enable = true;
 
   # time zone.
@@ -60,9 +63,10 @@
 
     windowManager.qtile = {
       enable = true;
-      extraPackages = python3Packages: with python3Packages; [
-        qtile-extras
-      ];
+      extraPackages =
+        python3Packages: with python3Packages; [
+          qtile-extras
+        ];
     };
   };
 
@@ -71,8 +75,8 @@
 
   # enable sound
   services.pipewire = {
-     enable = true;
-     pulse.enable = true;
+    enable = true;
+    pulse.enable = true;
   };
 
   # define a user account
@@ -97,7 +101,10 @@
     autosuggestions.enable = true;
     ohMyZsh = {
       enable = true;
-      plugins = [ "git" "sudo" ];
+      plugins = [
+        "git"
+        "sudo"
+      ];
       theme = "agnoster";
     };
   };
@@ -116,8 +123,8 @@
   # Some programs need SUID wrappers
   programs.mtr.enable = true;
   programs.gnupg.agent = {
-     enable = true;
-     enableSSHSupport = true;
+    enable = true;
+    enableSSHSupport = true;
   };
 
   # enable the OpenSSH daemon
@@ -130,4 +137,3 @@
   # install state version
   system.stateVersion = "25.05"; # Don't change
 }
-

hosts/default/hardware-configuration.nix

@@ -1,36 +1,56 @@
 # 0x29a nixos hardware configuration
 
-{ config, lib, pkgs, modulesPath, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
 
 {
-  imports =
-    [ (modulesPath + "/profiles/qemu-guest.nix")
-    ];
+  imports = [
+    (modulesPath + "/profiles/qemu-guest.nix")
+  ];
 
   # boot and initrd configs
-  boot.initrd.availableKernelModules = [ "uhci_hcd" "ehci_pci" "ahci" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
-  boot.initrd.kernelModules = [ "dm-snapshot" "cryptd" ];
+  boot.initrd.availableKernelModules = [
+    "uhci_hcd"
+    "ehci_pci"
+    "ahci"
+    "virtio_pci"
+    "virtio_scsi"
+    "sd_mod"
+    "sr_mod"
+  ];
+  boot.initrd.kernelModules = [
+    "dm-snapshot"
+    "cryptd"
+  ];
   boot.kernelModules = [ ];
   boot.extraModulePackages = [ ];
   boot.initrd.luks.devices."cryptroot".device = "/dev/disk/by-label/nixcrypt";
 
   # file systems
-  fileSystems."/" =
-    { device = "/dev/disk/by-label/nixroot";
-      fsType = "ext4";
-    };
-  fileSystems."/boot" =
-    { device = "/dev/disk/by-label/nixboot";
-      fsType = "vfat";
-      options = [ "fmask=0022" "dmask=0022" ];
-    };
-  fileSystems."/home" =
-    { device = "/dev/disk/by-label/nixhome";
-      fsType = "ext4";
-    };
-  swapDevices =
-    [ { device = "/dev/disk/by-label/nixswap"; }
+  fileSystems."/" = {
+    device = "/dev/disk/by-label/nixroot";
+    fsType = "ext4";
+  };
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-label/nixboot";
+    fsType = "vfat";
+    options = [
+      "fmask=0022"
+      "dmask=0022"
     ];
+  };
+  fileSystems."/home" = {
+    device = "/dev/disk/by-label/nixhome";
+    fsType = "ext4";
+  };
+  swapDevices = [
+    { device = "/dev/disk/by-label/nixswap"; }
+  ];
 
   # enable dhcp on all interfaces
   networking.useDHCP = lib.mkDefault true;

hosts/default/home.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # user config
@@ -29,7 +29,6 @@
     iotop
     iftop
     strace
-    ltrace
     lsof
     sysstat
     lm_sensors
@@ -51,12 +50,16 @@
     syntaxHighlighting.enable = true;
     oh-my-zsh = {
       enable = true;
-      plugins = [ "git" "sudo" "python" "ansible" ];
+      plugins = [
+        "git"
+        "sudo"
+        "python"
+        "ansible"
+      ];
       theme = "agnoster";
     };
   };
 
-
   ## deploy qtile config
   #home.file."qtile-config" = {
   #  target = ".config/qtile/config.py";

hosts/neon/configuration.nix

@@ -1,7 +1,6 @@
-{ config, pkgs, inputs, ... }:
-
 {
   imports = [
+    ../../modules/nixos/appimage.nix
     ../../modules/nixos/astro.nix
     ../../modules/nixos/audio.nix
     ../../modules/nixos/bootloader.nix
@@ -21,6 +20,7 @@
     ../../modules/nixos/settings.nix
     ../../modules/nixos/steam.nix
     ../../modules/nixos/users.nix
+    ../../modules/nixos/vial.nix
   ];
 
   # set hostname
@@ -29,4 +29,3 @@
   # install state version
   system.stateVersion = "25.11"; # Don't change
 }
-

hosts/neon/hardware-configuration.nix

@@ -1,39 +1,57 @@
 # 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, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
 
 {
-  imports =
-    [ (modulesPath + "/installer/scan/not-detected.nix")
-    ];
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
 
-  boot.initrd.availableKernelModules = [ "xhci_pci" "nvme" "usb_storage" "sd_mod" "rtsx_pci_sdmmc" ];
-  boot.initrd.kernelModules = [ "dm-snapshot" "cryptd" ];
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "nvme"
+    "usb_storage"
+    "sd_mod"
+    "rtsx_pci_sdmmc"
+  ];
+  boot.initrd.kernelModules = [
+    "dm-snapshot"
+    "cryptd"
+  ];
   boot.initrd.luks.devices."cryptroot".device = "/dev/disk/by-label/nixcrypt";
 
   boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
-    { device = "/dev/disk/by-label/nixroot";
-      fsType = "ext4";
-    };
+  fileSystems."/" = {
+    device = "/dev/disk/by-label/nixroot";
+    fsType = "ext4";
+  };
 
-  fileSystems."/boot" =
-    { device = "/dev/disk/by-label/nixboot";
-      fsType = "vfat";
-      options = [ "fmask=0022" "dmask=0022" ];
-    };
-
-  fileSystems."/home" =
-    { device = "/dev/disk/by-label/nixhome";
-      fsType = "ext4";
-    };
-
-  swapDevices =
-    [ { device = "/dev/disk/by-label/nixswap"; }
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-label/nixboot";
+    fsType = "vfat";
+    options = [
+      "fmask=0022"
+      "dmask=0022"
     ];
+  };
+
+  fileSystems."/home" = {
+    device = "/dev/disk/by-label/nixhome";
+    fsType = "ext4";
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-label/nixswap"; }
+  ];
 
   networking.useDHCP = lib.mkDefault true;
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";

modules/home-manager/fonts.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, inputs, ... }:
+{ pkgs, ... }:
 
 {
   # user fonts

modules/home-manager/ghostty.nix

@@ -1,5 +1,3 @@
-{ config, pkgs, inputs, ... }:
-
 {
   programs.ghostty = {
     enable = true;

modules/home-manager/git.nix

@@ -1,17 +1,46 @@
-{ config, pkgs, inputs, ... }:
-
 {
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  email = "aaron@0x29a.ch";
+
+  # public half of every machine's ~/.ssh/id_ed25519, each one verified as a
+  # signing key in gitea. the key a host signs with is picked up from the key
+  # file itself, this list only tells the local git which machines to trust
+  signingKeys = [
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHRhwzo1oxaT3fEySSmILKNnu9v30cfjx5G7FKpmfqeX aaron@argon"
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGDkhvvTUcBSQdtXjX+Mw2Bp8HHhtiBm8aJi4ZxiBgZR aaron@neon"
+  ];
+in
+{
+  # gitea verifies signatures against the account keys, this teaches the local
+  # git the same trust so `git log --show-signature` resolves as well
+  xdg.configFile."git/allowed_signers".text = lib.concatMapStrings (
+    key: "${email} ${key}\n"
+  ) signingKeys;
+
   programs.git = {
     enable = true;
     settings = {
-      push = { autoSetupRemote = true; };
-      user = {
-        name  = "aaron";
-        email = "aaron@0x29a.ch";
+      push = {
+        autoSetupRemote = true;
       };
+      user = {
+        name = "aaron";
+        inherit email;
+      };
+      gpg.ssh.allowedSignersFile = "${config.xdg.configHome}/git/allowed_signers";
     };
     signing = {
-      key = "7A830180A05DAC59CDE43B0677D2F5DB48184456";
+      format = "ssh";
+      # point at the *public* key so ssh-keygen signs through the ssh agent
+      # instead of reading the passphrase protected private key from disk
+      key = "${config.home.homeDirectory}/.ssh/id_ed25519.pub";
+      signer = "${pkgs.openssh}/bin/ssh-keygen";
       signByDefault = true;
     };
   };

modules/home-manager/nixvim.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, inputs, ... }:
+{ pkgs, inputs, ... }:
 
 {
   programs.nixvim = {
@@ -57,7 +57,7 @@
       servers.pyright.enable = true;
       servers.ruff.enable = true;
       keymaps.lspBuf = {
-        "<leader>K"  = "hover";
+        "<leader>K" = "hover";
         "<leader>gd" = "definition";
         "<leader>gr" = "references";
         "<leader>f" = "format";
@@ -67,7 +67,11 @@
     };
     plugins.treesitter = {
       enable = true;
-      settings.ensure_installed = [ "markdown" "markdown_inline" "typst" ];
+      settings.ensure_installed = [
+        "markdown"
+        "markdown_inline"
+        "typst"
+      ];
     };
     plugins.typst-preview = {
       enable = true;
@@ -87,7 +91,11 @@
       enable = true;
       settings = {
         # render in normal mode, raw source in insert
-        render_modes = [ "n" "c" "t"];
+        render_modes = [
+          "n"
+          "c"
+          "t"
+        ];
         pipe_table.preset = "round";
         heading.width = "block";
         file_types = [ "markdown" ];

modules/home-manager/noctalia.nix

@@ -1,17 +1,18 @@
-{ config, pkgs, inputs, ... }:
+{ pkgs, inputs, ... }:
 
 {
-  # Noctalia v5 shell, managed via its upstream home-manager module.
+  # Noctalia v5 shell, managed via home-manager's built-in programs.noctalia module.
+  # The noctalia flake's homeModules.default is not imported: it redeclares the same
+  # options and its disabledModules path ("programs/noctalia.nix") doesn't match HM's.
   # See https://docs.noctalia.dev/v5/getting-started/nixos/
-  imports = [ inputs.noctalia.homeModules.default ];
 
   programs.noctalia = {
     enable = true;
 
-    # The module's `package` option has no default, so it must be set explicitly.
+    # Use the package from the noctalia flake rather than nixpkgs.
     package = inputs.noctalia.packages.${pkgs.stdenv.hostPlatform.system}.default;
 
-    # settings is rendered to ~/.config/noctalia/config.toml 
+    # settings is rendered to ~/.config/noctalia/config.toml
     settings = {
       # theme / colors
       theme = {
@@ -72,9 +73,22 @@
           radius = 0;
           scale = 1.2;
           widget_spacing = 20;
-          start = [ "control-center" "cpu" "ram" "temp" "active_window" ];
+          start = [
+            "control-center"
+            "cpu"
+            "ram"
+            "temp"
+            "active_window"
+          ];
           center = [ "workspaces" ];
-          end = [ "tray" "bluetooth" "notifications" "volume" "network" "clock" ];
+          end = [
+            "tray"
+            "bluetooth"
+            "notifications"
+            "volume"
+            "network"
+            "clock"
+          ];
         };
       };
 
@@ -102,7 +116,11 @@
 
       # idle behavior
       idle = {
-        behavior_order = [ "screen-off" "lock" "lock-and-suspend" ];
+        behavior_order = [
+          "screen-off"
+          "lock"
+          "lock-and-suspend"
+        ];
         behavior = {
           "screen-off" = {
             enabled = true;

modules/home-manager/programs.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, inputs, ... }:
+{ config, pkgs, ... }:
 
 {
   # user packages

modules/home-manager/shell.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, inputs, ... }:
+{ lib, ... }:
 
 {
   # configure z-shell to use omz with some plugins
@@ -9,7 +9,11 @@
     oh-my-zsh = {
       enable = true;
       # add git and agents as plugins
-      plugins = [ "git" "ssh-agent" "gpg-agent" ];
+      plugins = [
+        "git"
+        "ssh-agent"
+        "gpg-agent"
+      ];
       # everything here lands before `source $ZSH/oh-my-zsh.sh`
       extraConfig = ''
         # make omz faster on large repositories
@@ -23,6 +27,35 @@
         fi
       '';
     };
+
+    # Unlike oh-my-zsh.extraConfig above, this lands *after*
+    # `source $ZSH/oh-my-zsh.sh`, which is where the theme's prompt functions
+    # come into existence.
+    initContent = lib.mkAfter ''
+      # Keep the prompt on one line in deeply nested trees.
+      #
+      # Both themes render the working directory as `%~`, the full path with
+      # $HOME collapsed to `~`. Somewhere like
+      # ~/git/bfh/cas-pml-sem/documents/bericht that is 39 columns on its own,
+      # and together with user@host and a long branch name the line wraps.
+      #
+      # `%(4~|…/%2~|%~)` is a prompt ternary: at four or more components show
+      # an ellipsis and the last two, otherwise show the path whole. Short
+      # paths like ~/git/nixconfig are left alone.
+      if [[ "$ZSH_THEME" == "agnoster" ]]; then
+        # agnoster calls prompt_dir on every render, so redefining it is
+        # enough. AGNOSTER_DIR_* keep the segment's own colours.
+        prompt_dir() {
+          prompt_segment "$AGNOSTER_DIR_BG" "$AGNOSTER_DIR_FG" '%(4~|…/%2~|%~)'
+        }
+      else
+        # gentoo builds PROMPT once at load time, so patch the string. Its
+        # `%~` is the non-root branch of `%(!.%1~.%~)`, and it is the first
+        # literal `%~` in there, so the root branch is untouched. ASCII `...`
+        # because this branch is the Linux console, whose font may lack U+2026.
+        PROMPT="''${PROMPT/\%~/%(4~|.../%2~|%~)}"
+      fi
+    '';
   };
 
   # set important env vars

modules/home-manager/styling.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, inputs, ... }:
+{ pkgs, ... }:
 
 {
   # set gtk theme
@@ -6,8 +6,8 @@
     enable = true;
     theme = {
       name = "Adwaita-dark";
-        package = pkgs.gnome-themes-extra;
-      };
+      package = pkgs.gnome-themes-extra;
+    };
     gtk3.extraConfig.gtk-application-prefer-dark-theme = 1;
     gtk4.theme = null;
     gtk4.extraConfig.gtk-application-prefer-dark-theme = 1;

modules/home-manager/tmux.nix

@@ -1,5 +1,3 @@
-{ config, pkgs, inputs, ... }:
-
 let
   # Powerline separators, U+E0B0..U+E0B3.
   #

modules/nixos/appimage.nix

@@ -0,0 +1,17 @@
+{
+  # AppImages ship a squashfs payload that the bundled runtime mounts through
+  # libfuse.so.2 at startup. nix-ld resolves the ELF interpreter but not that
+  # dlopen, so running one directly dies with "dlopen(): error loading
+  # libfuse.so.2". appimage-run sidesteps the mount entirely: it unpacks the
+  # image and runs the payload inside an FHS sandbox, which the bundled Qt and
+  # electron style binaries need anyway.
+  #
+  # Used for the BitBox02 wallet AppImage, downloaded fresh from
+  # https://bitbox.swiss/download/ rather than installed from nixpkgs.
+  programs.appimage = {
+    enable = true;
+    # register AppImages with binfmt_misc so ./Something.AppImage runs as-is,
+    # no appimage-run prefix to remember.
+    binfmt = true;
+  };
+}

modules/nixos/astro.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ lib, pkgs, ... }:
 
 let
   # Siril's Python plugins (sirilpy) run in a venv that pip-installs foreign
@@ -15,7 +15,15 @@ let
     # on PATH. nixpkgs only *propagates* python3 from the siril derivation (it
     # isn't on the runtime PATH), so without the --prefix PATH below the GUI
     # fails with "Python not found in system PATH" and never creates
-    # ~/.local/share/siril/venv. We add the same interpreter siril references.
+    # ~/.local/share/siril/venv.
+    #
+    # We deliberately do NOT put ${pkgs.python3}/bin on PATH directly: `venv`
+    # symlinks bin/python3 to whatever sys.executable was, so the venv would
+    # hard-link a /nix/store hash that gets garbage-collected after the next
+    # python bump, leaving a dangling symlink ("Error finding venv python
+    # path, unable to spawn python"). Instead we go through the stable
+    # /etc/siril/bin/python3 symlink (see environment.etc below), which NixOS
+    # re-points at the current python on every rebuild.
     #
     # The VeraLux PyQt6 wheel ships only the built-in Windows/Fusion styles, so
     # the global QT_STYLE_OVERRIDE=adwaita-dark (inherited from the session) is
@@ -26,32 +34,37 @@ let
     # ignored again (harmless warning + Fusion fallback, no loss of function).
     postBuild = ''
       wrapProgram $out/bin/siril \
-        --prefix PATH : ${lib.makeBinPath [ pkgs.python3 ]} \
+        --prefix PATH : /etc/siril/bin \
         --prefix QT_PLUGIN_PATH : ${pkgs.adwaita-qt6}/lib/qt-6/plugins \
-        --prefix LD_LIBRARY_PATH : ${lib.makeLibraryPath (with pkgs; [
-          stdenv.cc.cc.lib   # libstdc++ / libgcc_s / libgomp  (numpy etc.)
-          zlib
-          zstd               # libzstd.so.1                     (PyQt6)
-          libGL              # libGL.so.1                       (PyQt6)
-          # PyQt6 (VeraLux) — Qt bundles xcb support so it needs these even
-          # on Wayland; libxkbcommon is the keymap lib used by Wayland too.
-          glib
-          fontconfig
-          freetype
-          dbus
-          libxkbcommon
-          # Qt platform plugins: the wayland plugin (libqwayland.so) needs the
-          # wayland client libs; the xcb fallback needs libxcb-cursor.so.0.
-          wayland            # libwayland-client/cursor/egl       (wayland plugin)
-          libxcb-cursor      # libxcb-cursor.so.0                 (xcb plugin)
-          libx11
-          libxcb
-          libxcb-util
-          libxcb-wm
-          libxcb-image
-          libxcb-keysyms
-          libxcb-render-util
-        ])}
+        --prefix LD_LIBRARY_PATH : ${
+          lib.makeLibraryPath (
+            with pkgs;
+            [
+              stdenv.cc.cc.lib # libstdc++ / libgcc_s / libgomp  (numpy etc.)
+              zlib
+              zstd # libzstd.so.1                     (PyQt6)
+              libGL # libGL.so.1                       (PyQt6)
+              # PyQt6 (VeraLux) — Qt bundles xcb support so it needs these even
+              # on Wayland; libxkbcommon is the keymap lib used by Wayland too.
+              glib
+              fontconfig
+              freetype
+              dbus
+              libxkbcommon
+              # Qt platform plugins: the wayland plugin (libqwayland.so) needs the
+              # wayland client libs; the xcb fallback needs libxcb-cursor.so.0.
+              wayland # libwayland-client/cursor/egl       (wayland plugin)
+              libxcb-cursor # libxcb-cursor.so.0                 (xcb plugin)
+              libx11
+              libxcb
+              libxcb-util
+              libxcb-wm
+              libxcb-image
+              libxcb-keysyms
+              libxcb-render-util
+            ]
+          )
+        }
     '';
   };
 in
@@ -62,6 +75,10 @@ in
     sirilWithPlugins
   ];
 
+  # Stable, GC-safe interpreter path for Siril's venv (see sirilWithPlugins).
+  # Same python as siril itself propagates, so sirilpy's ABI matches.
+  environment.etc."siril/bin/python3".source = "${pkgs.python3}/bin/python3";
+
   # StarNet++ has no nixpkgs package. Download the StarNet v2 ORT CLI build
   # (starnet2_linux_*_ORT_x64_cli) from https://www.starnetastro.com/download/
   # and unzip it to ~/.local/share/siril/starnet/. Then in Siril set
@@ -72,7 +89,7 @@ in
   # run it. Its own opencv/onnxruntime libs are found via the bundled ./lib.
   programs.nix-ld.enable = true;
   programs.nix-ld.libraries = with pkgs; [
-    stdenv.cc.cc.lib   # libstdc++ / libgcc_s
+    stdenv.cc.cc.lib # libstdc++ / libgcc_s
     zlib
   ];
 }

modules/nixos/audio.nix

@@ -1,9 +1,7 @@
-{ config, lib, pkgs, ... }:
-
 {
   # enable sound through pipewire
   services.pipewire = {
-     enable = true;
-     pulse.enable = true;
+    enable = true;
+    pulse.enable = true;
   };
 }

modules/nixos/bootloader.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # set bootloader to systemd
@@ -9,7 +9,7 @@
 
   # enable systemd initrd
   boot.initrd.systemd.enable = true;
-  
+
   # plymouth
   boot.plymouth = {
     enable = true;
@@ -17,7 +17,10 @@
   };
 
   # kernel options
-  boot.kernelParams = [ "quiet" "acpi.debug_level=0" ];
+  boot.kernelParams = [
+    "quiet"
+    "acpi.debug_level=0"
+  ];
   boot.kernelPackages = pkgs.linuxPackages_latest;
   boot.consoleLogLevel = 2;
 

modules/nixos/calibre.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # install calibre for ebook management and kobo syncing

modules/nixos/certificates.nix

@@ -1,5 +1,3 @@
-{ config, lib, pkgs, ... }:
-
 let
   caddyRootCA = ''
     -----BEGIN CERTIFICATE-----

modules/nixos/claudecode.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   environment.systemPackages = with pkgs; [

modules/nixos/docker.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ...}:
+{ pkgs, ... }:
 
 {
   # add docker group to user
@@ -8,7 +8,10 @@
     enable = true;
     # Customize Docker daemon settings
     daemon.settings = {
-      dns = [ "1.1.1.1" "8.8.8.8" ];
+      dns = [
+        "1.1.1.1"
+        "8.8.8.8"
+      ];
       log-driver = "journald";
       registry-mirrors = [ "https://mirror.gcr.io" ];
       storage-driver = "overlay2";

modules/nixos/drives.nix

@@ -1,5 +1,3 @@
-{ config, lib, pkgs, ... }:
-
 # Add encrypted drives to argon
 
 {

modules/nixos/gnupg.nix

@@ -1,15 +1,31 @@
-{ config, lib, pkgs, ... }:
+{ config, pkgs, ... }:
 
 {
   # enable gnupg agent
   programs.gnupg.agent = {
     enable = true;
-    enableSSHSupport = true;
-    pinentryPackage = pkgs.pinentry-curses;
+    # a graphical pinentry never grabs the tty, so a passphrase prompt can no
+    # longer take over a terminal that a coding agent is driving
+    pinentryPackage = pkgs.pinentry-qt;
+    settings = {
+      # keep the key unlocked for a full working day instead of 10 minutes,
+      # so signing commits asks at most once per session
+      default-cache-ttl = 86400;
+      max-cache-ttl = 86400;
+      # fail an unattended signature instead of blocking on a prompt forever
+      pinentry-timeout = 120;
+    };
   };
 
-  environment.systemPackages = with pkgs; [ 
+  environment.systemPackages = with pkgs; [
     gnupg
+    pinentry-qt
+    # fallback for sessions without a display, switch pinentryPackage to use it
     pinentry-curses
+    # prime the passphrase cache on demand, e.g. before an agent session
+    (writeShellScriptBin "gpg-unlock" ''
+      echo | ${config.programs.gnupg.package}/bin/gpg --clearsign --output /dev/null
+      echo "gpg key unlocked"
+    '')
   ];
 }

modules/nixos/gnuradio.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # install gnuradio companion along with it's osmocom library

modules/nixos/graphics.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # enable amd GPU acceleration (mesa, vulkan, egl)
@@ -11,7 +11,7 @@
   environment.systemPackages = with pkgs; [
     amdgpu_top
   ];
-  
+
   # add amdgpu to the initrd for plymouth
   hardware.amdgpu.initrd.enable = true;
 }

modules/nixos/greetd.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # greetd display manager with tuigreet

modules/nixos/locales.nix

@@ -1,5 +1,3 @@
-{ config, lib, pkgs, ... }:
-
 {
   # set the time zone
   time.timeZone = "Europe/Zurich";

modules/nixos/networking.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # user networkmanager
@@ -13,7 +13,7 @@
 
   # enable bluetooth
   hardware.bluetooth.enable = true;
-  
+
   # Add network-related packages
   environment.systemPackages = with pkgs; [
     wireguard-tools

modules/nixos/niri.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # just enable and install niri

modules/nixos/noctalia.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, inputs, ... }:
+{ pkgs, inputs, ... }:
 {
   # install noctalia and helper packages
   environment.systemPackages = with pkgs; [
@@ -9,5 +9,6 @@
     brightnessctl
     ddcutil
     playerctl
+    wl-mirror
   ];
 }

modules/nixos/openssh.nix

@@ -1,5 +1,3 @@
-{ config, lib, pkgs, ... }:
-
 {
   # enable the openssh daemon
   services.openssh = {

modules/nixos/packages.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # system packages
@@ -18,7 +18,6 @@
     ldns
     lm_sensors
     lsof
-    ltrace
     mtr
     neovim
     nfs-utils
@@ -35,6 +34,7 @@
     tree
     unzip
     usbutils
+    vial
     vim
     wget
     which

modules/nixos/protonvpn.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # protonvpn uses wireguard tunnels, which break strict reverse path filtering

modules/nixos/sddm.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # enable sddm and use astronaut theme

modules/nixos/services.nix

@@ -1,5 +1,3 @@
-{ config, lib, pkgs, ... }:
-
 {
   # list of enabled services on the system
   services = {

modules/nixos/settings.nix

@@ -1,17 +1,18 @@
-{ config, lib, pkgs, ... }:
-
 {
   nix = {
     # nix settings
     settings = {
       # enable flakes and nix-command
-      experimental-features = [ "nix-command" "flakes" ];
+      experimental-features = [
+        "nix-command"
+        "flakes"
+      ];
       # auto-optimize my nix-store
       auto-optimise-store = true;
       # use all cores
-      max-jobs = "auto";  
+      max-jobs = "auto";
       # use all available cores per job
-      cores = 0;          
+      cores = 0;
       # add trusted substituters (binary caches)
       substituters = [
         "https://cache.nixos.org"
@@ -23,7 +24,7 @@
         "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
       ];
     };
-    
+
     # enable automatic garbage collection
     gc = {
       automatic = true;
@@ -31,9 +32,12 @@
       options = "--delete-older-than 7d";
     };
   };
-  
+
   # add trusted users (able to modify the nix store)
-  nix.settings.trusted-users = [ "root" "@wheel" ];
+  nix.settings.trusted-users = [
+    "root"
+    "@wheel"
+  ];
 
   # allow unfree packages (steam, protonvpn, discord, etc.)
   nixpkgs.config.allowUnfree = true;

modules/nixos/steam.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # enable steam and open firewall

modules/nixos/thunar.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # Enable Thunar

modules/nixos/users.nix

@@ -1,11 +1,15 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   # create users
   users.users.aaron = {
     isNormalUser = true;
     group = "users";
-    extraGroups = [ "wheel" "networkmanager" "dialout" ];
+    extraGroups = [
+      "wheel"
+      "networkmanager"
+      "dialout"
+    ];
     shell = pkgs.zsh;
   };
 

modules/nixos/vial.nix

@@ -0,0 +1,26 @@
+{ pkgs, ... }:
+
+{
+  # Vial-capable keyboards (lily58 pro r2g) expose a second, non-keyboard raw
+  # HID interface that vial.rocks drives over WebHID. Its /dev/hidraw* node is
+  # root-only by default, so neither chromium nor the native app can open it.
+  #
+  # This has to ship as a numbered rules file rather than via
+  # services.udev.extraRules: extraRules lands in 99-local.rules, but the
+  # builtin that turns TAG+="uaccess" into an actual ACL is invoked from
+  # systemd's 73-seat-late.rules. A tag set at 99 is set too late to be seen,
+  # so the device ends up correctly tagged and still unreadable. 60- sorts
+  # safely ahead of 73.
+  services.udev.packages = [
+    (pkgs.writeTextFile {
+      name = "vial-udev-rules";
+      destination = "/lib/udev/rules.d/60-vial.rules";
+      # Vial firmware advertises itself through a magic USB serial, so this
+      # matches any vial board rather than just the lily58. uaccess hands the
+      # device to whoever owns the active seat, no group membership needed.
+      text = ''
+        KERNEL=="hidraw*", SUBSYSTEM=="hidraw", ATTRS{serial}=="*vial:f64c2b3c*", TAG+="uaccess"
+      '';
+    })
+  ];
+}

statix.toml

@@ -0,0 +1,8 @@
+# statix configuration (run via `lint` in the devenv)
+
+# Flat assignments like `boot.loader = ...; boot.plymouth = ...;` are the
+# preferred style in this repo, so don't ask for them to be merged.
+disabled = [ "repeated_keys" ]
+
+# Generated by nixos-generate-config, not maintained by hand.
+ignore = [ "hosts/*/hardware-configuration.nix" ]

users/aaron/home.nix

@@ -1,5 +1,3 @@
-{ config, pkgs, ... }:
-
 {
   imports = [
     ../../modules/home-manager/fonts.nix