Update to Linux 7.2.

This is to pull in the drivers for the mt7927 wireless chipset in my desktop. Normally, I would keep the rest of my machines on LTS but since Linux 7 significantly changed the kernel preemption, maintaining two configs would be more trouble than it is worth.

nix/configuration/configuration.nix

@@ -36,6 +36,7 @@ in
     ./roles/emacs
     ./roles/emulate_isa
     ./roles/esim
+    ./roles/exfat
     ./roles/firefox
     ./roles/firewall
     ./roles/flux
@@ -117,14 +118,14 @@ in
     nix.settings.experimental-features = [
       "nix-command"
       "flakes"
-      "ca-derivations"
+      # "ca-derivations"
       # "blake3-hashes"
       # "git-hashing"
     ];
     nix.settings.trusted-users = [ "@wheel" ];
     nix.settings.connect-timeout = 5;
-    nix.settings.min-free = 128000000;
-    nix.settings.max-free = 1000000000;
+    nix.settings.min-free = 5 * 1024 * 1024 * 1024; # Kick off garbage collect if space for nix store is less than 5 GiB
+    nix.settings.max-free = 10 * 1024 * 1024 * 1024; # Run that garbage collect until at least 10 GiB are free.
     nix.settings.fallback = true;
     nix.settings.warn-dirty = false;
     nix.settings.fsync-metadata = true;
@@ -246,31 +247,31 @@ in
             glew = (final.glew.override { enableEGL = false; });
           };
         })
+        (disableTests "onetbb") # oneTBB tests hang forever on machines with a single core (like my build virtual machine) https://github.com/uxlfoundation/oneTBB/issues/1557
+        (disableTests "aws-c-common") # aws-c-common tests time out on my build virtual machine but run fine on my laptop.
+        (disableOptimizations "onnxruntime") # QuantizeLinearOpTest test failing.
         (final: prev: {
-          fwupd = prev.fwupd.overrideAttrs (
+          rpcs3 = prev.rpcs3.overrideAttrs (
             finalAttrs: prevAttrs: {
-              version = "2.1.5";
+              version = "0.0.42-19843";
+
               src = final.fetchFromGitHub {
-                owner = "fwupd";
-                repo = "fwupd";
-                tag = finalAttrs.version;
-                hash = "sha256-DzQ+N99ZmFRqZc2rN6PSqmoIMXUyrE8Kkn+KnT/AWPc=";
+                owner = "RPCS3";
+                repo = "rpcs3";
+                rev = "6567a5a2f8ab47a89db395d6b47a7b59b23d6960";
+                postCheckout = ''
+                  cd $out/3rdparty
+                  git submodule update --init \
+                    fusion/fusion asmjit/asmjit yaml-cpp/yaml-cpp SoundTouch/soundtouch stblib/stb \
+                    feralinteractive/feralinteractive wolfssl/wolfssl
+                '';
+                hash = "sha256-a1c1+Ui7XyHFTGEZAgRuJasCzQqr2PZNTlwaDUWVb18=";
               };
+
+              patches = [ ];
             }
           );
         })
-        (disableTests "onetbb") # oneTBB tests hang forever on machines with a single core (like my build virtual machine) https://github.com/uxlfoundation/oneTBB/issues/1557
-        (disableTests "aws-c-common") # aws-c-common tests time out on my build virtual machine but run fine on my laptop.
-
-        # Works but probably sets python2's scipy to be python3:
-        #
-        # (final: prev: {
-        #   pythonPackagesExtensions = prev.pythonPackagesExtensions ++ [
-        #     (python-final: python-prev: {
-        #       scipy = final.unoptimized.python3Packages.scipy;
-        #     })
-        #   ];
-        # })
       ];
 
     # This option defines the first version of NixOS you have installed on this particular machine,

nix/configuration/flake.lock

@@ -22,11 +22,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1780894562,
-        "narHash": "sha256-c3430xwxwhHipl3jigUGMMBfpaMylDqytW/kdmB3ZGs=",
+        "lastModified": 1781152676,
+        "narHash": "sha256-RxWs5ND31KzTG7wvMM+PMfUjyNpmIEr999lqNARaM5o=",
         "owner": "nix-community",
         "repo": "disko",
-        "rev": "24fed06cac83bcc44ac8efbb57cab1a82fa0bedc",
+        "rev": "ff8702b4de27f72b4c78573dfb89ec74e36abdf1",
         "type": "github"
       },
       "original": {
@@ -170,11 +170,11 @@
         "rust-overlay": "rust-overlay_2"
       },
       "locked": {
-        "lastModified": 1785893798,
-        "narHash": "sha256-69nKdvM+E/66sj9R2HEK8i0p0TOt/0MSqfXiZjcJ9nI=",
+        "lastModified": 1785893730,
+        "narHash": "sha256-K3pjEDafWrpfC1dc14icLxx9tWx4c/dfKTeiDYoZU7Q=",
         "ref": "refs/heads/main",
-        "rev": "6386febdb81eb1e072ad7cb568019f06618008fe",
-        "revCount": 41,
+        "rev": "83f05b36778dd90d4e15e0d020685d9388cbaea1",
+        "revCount": 39,
         "type": "git",
         "url": "https://code.fizz.buzz/talexander/nix_builder.git"
       },
@@ -185,11 +185,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1780749050,
-        "narHash": "sha256-3av0pIjlOWQ6rDbNOmpUSvbNnJkGORQKKjb4LtCZsIY=",
+        "lastModified": 1787498568,
+        "narHash": "sha256-9i/VTdusq/+NM/tz+J1Re+ojkMB8MBf0QshnYfzHz30=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "a799d3e3886da994fa307f817a6bc705ae538eeb",
+        "rev": "56c02bc00adcf003215cc4bd996d6efaf4cff188",
         "type": "github"
       },
       "original": {
@@ -199,22 +199,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-google": {
-      "locked": {
-        "lastModified": 1779893571,
-        "narHash": "sha256-wiwMyVCtmjRjlFCe2zaumCE6LRV9GzzN0ZH25NQkbAU=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "45f6cfaa4605b706c870e75bd74bdb5e97eee11e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "45f6cfaa4605b706c870e75bd74bdb5e97eee11e",
-        "type": "github"
-      }
-    },
     "nixpkgs-stable": {
       "locked": {
         "lastModified": 1730741070,
@@ -264,8 +248,7 @@
         "impermanence": "impermanence",
         "lanzaboote": "lanzaboote",
         "nix_builder": "nix_builder",
-        "nixpkgs": "nixpkgs",
-        "nixpkgs-google": "nixpkgs-google"
+        "nixpkgs": "nixpkgs"
       }
     },
     "rust-overlay": {

nix/configuration/flake.nix

@@ -20,7 +20,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    nixpkgs-google.url = "github:NixOS/nixpkgs/45f6cfaa4605b706c870e75bd74bdb5e97eee11e";
     lanzaboote = {
       url = "github:nix-community/lanzaboote/v0.4.2";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -39,7 +38,6 @@
     {
       self,
       nixpkgs,
-      nixpkgs-google,
       disko,
       impermanence,
       lanzaboote,
@@ -99,9 +97,6 @@
                       hostPlatform.gcc.arch = "default";
                       hostPlatform.gcc.tune = "default";
                     };
-                    google = import nixpkgs-google {
-                      system = prev.stdenv.hostPlatform.system;
-                    };
                   })
                 ];
               };

nix/configuration/hosts/odo/default.nix

@@ -94,6 +94,7 @@
     me.emacs_flavor = "full";
     me.emulate_isa.enable = true;
     me.esim.enable = true;
+    me.exfat.enable = true;
     me.firefox.enable = true;
     me.firewall.enable = true;
     me.flux.enable = true;
@@ -164,7 +165,7 @@
     me.zrepl.enable = true;
     me.zsh.enable = true;
 
-    me.sm64ex.enable = true;
+    me.sm64ex.enable = false;
     me.shipwright.enable = false;
     me.ship2harkinian.enable = true;
   };

nix/configuration/hosts/odo/distributed_build.nix

@@ -4,7 +4,7 @@
   config = {
     me.distributed_build.enable = true;
     me.distributed_build.machines.quark = {
-      enable_build = false;
+      enable_build = true;
       enable_substituter = false;
       additional_config = {
         speedFactor = 2;

nix/configuration/hosts/quark/default.nix

@@ -159,7 +159,7 @@
     me.zrepl.enable = true;
     me.zsh.enable = true;
 
-    me.sm64ex.enable = true;
+    me.sm64ex.enable = false;
     me.shipwright.enable = false;
     me.ship2harkinian.enable = true;
   };

nix/configuration/roles/exfat/default.nix

@@ -0,0 +1,26 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+{
+  imports = [ ];
+
+  options.me = {
+    exfat.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      example = true;
+      description = "Whether we want to install exfat.";
+    };
+  };
+
+  config = lib.mkIf config.me.exfat.enable {
+    # boot.supportedFilesystems = [ "exfat" ];
+    environment.systemPackages = with pkgs; [
+      exfatprogs
+    ];
+  };
+}

nix/configuration/roles/firefox/default.nix

@@ -134,7 +134,7 @@
       users.talexander = {
         directories = [
           {
-            directory = ".mozilla";
+            directory = ".config/mozilla";
             user = "talexander";
             group = "talexander";
             mode = "0700";

nix/configuration/roles/gcloud/default.nix

@@ -18,7 +18,7 @@
   };
 
   config = lib.mkIf config.me.gcloud.enable {
-    environment.systemPackages = with pkgs.google; [
+    environment.systemPackages = with pkgs; [
       (google-cloud-sdk.withExtraComponents [ google-cloud-sdk.components.gke-gcloud-auth-plugin ])
     ];
 

nix/configuration/roles/hydra/default.nix

@@ -61,6 +61,7 @@
     systemd.services."build-cache" =
       let
         enabled_targets = [
+          "wip"
           "odo"
           "odo_update"
           "odowork"

nix/configuration/roles/hydra/files/nix_builder.toml

@@ -1,5 +1,12 @@
 output_directory = "/home/nixworker/persist/nix_builder"
 
+[[targets]]
+  name = "wip"
+  repo = "https://code.fizz.buzz/talexander/machine_setup.git"
+  branch = "wip"
+  path = "nix/configuration"
+  attr = "nixosConfigurations.odo.config.system.build.toplevel"
+
 [[targets]]
   name = "odo"
   repo = "https://code.fizz.buzz/talexander/machine_setup.git"
@@ -180,10 +187,10 @@ output_directory = "/home/nixworker/persist/nix_builder"
 
 [[targets]]
   name = "nixbsd"
-  repo = "https://github.com/nixos-bsd/nixbsd.git"
-  revision = "2b512eda58e6d77378bd20d6027802b158942e24"
-  path = "."
-  attr = "base.vmClosureInfo"
+  repo = "https://code.fizz.buzz/talexander/machine_setup.git"
+  branch = "nixbsd"
+  path = "nix/nixbsd"
+  attr = "computer.vm"
 
 [[targets]]
   name = "nix_builder_develop"

nix/configuration/roles/kernel/default.nix

@@ -14,30 +14,12 @@ let
     full = {
       PREEMPT_DYNAMIC = yes;
       PREEMPT = yes;
-      PREEMPT_VOLUNTARY = lib.mkForce no;
       PREEMPT_LAZY = lib.mkForce no;
-      PREEMPT_NONE = no;
     };
     lazy = {
       PREEMPT_DYNAMIC = yes;
       PREEMPT = no;
-      PREEMPT_VOLUNTARY = lib.mkForce no;
       PREEMPT_LAZY = yes;
-      PREEMPT_NONE = no;
-    };
-    voluntary = {
-      PREEMPT_DYNAMIC = no;
-      PREEMPT = no;
-      PREEMPT_VOLUNTARY = yes;
-      PREEMPT_LAZY = lib.mkForce no;
-      PREEMPT_NONE = no;
-    };
-    none = {
-      PREEMPT_DYNAMIC = no;
-      PREEMPT = no;
-      PREEMPT_VOLUNTARY = lib.mkForce no;
-      PREEMPT_LAZY = lib.mkForce no;
-      PREEMPT_NONE = yes;
     };
   };
   tick_hz =
@@ -99,16 +81,14 @@ let
       TRANSPARENT_HUGEPAGE_MADVISE = yes;
     };
   };
-  common_config =
-    with lib.kernel;
-    {
-      # Google's BBRv3 TCP congestion Control
-      TCP_CONG_BBR = yes;
-      DEFAULT_BBR = yes;
-    };
+  common_config = with lib.kernel; {
+    # Google's BBRv3 TCP congestion Control
+    TCP_CONG_BBR = yes;
+    DEFAULT_BBR = yes;
+  };
   flavors = {
     server = lib.mkMerge [
-      preemption_type.none
+      preemption_type.lazy
       tick_hz."300"
       performance_governor.default
       tick_rate.tickless
@@ -142,7 +122,8 @@ in
 
     kernel.version = lib.mkOption {
       type = lib.types.str;
-      default = "linux"; # LTS
+      # default = "linux"; # LTS
+      default = "linux_7_2"; # LTS
       example = "linux_6_18";
       description = "What version of the kernl should we use.";
     };

nix/configuration/roles/latex/default.nix

@@ -25,8 +25,8 @@
     nixpkgs.overlays = [
       (final: prev: {
         tex = (
-          pkgs.texlive.combine {
-            inherit (pkgs.texlive)
+          pkgs.texliveSmall.withPackages (
+            ps: with ps; [
               scheme-basic
               dvisvgm
               dvipng # for preview and export as html in org-mode
@@ -44,8 +44,8 @@
               upquote # emacs org-mode pdf export
               lineno # emacs org-mode pdf export
               beamer # emacs org-mode presentation pdf export
-              ;
-          }
+            ]
+          )
         );
       })
     ];

nix/configuration/roles/podman/default.nix

@@ -34,7 +34,9 @@
     # Write config files in /etc/containers
     virtualisation.containers.enable = true;
     # By default this includes "quay.io" which leads to prompting for which registry to download from.
-    virtualisation.containers.registries.search = [ "docker.io" ];
+    virtualisation.containers.registries.settings = {
+      unqualified-search-registries = [ "docker.io" ];
+    };
     virtualisation = {
       podman = {
         enable = true;

nix/configuration/roles/rpcs3/default.nix

@@ -38,7 +38,7 @@ in
           };
         };
         Miscellaneous = {
-          "Pause emulation on RPCS3 focus loss" = true;
+          "Pause emulation on RPCS3 focus loss" = false;
           "Start games in fullscreen mode" = true;
           "Pause Emulation During Home Menu" = false; # true makes the home menu slow
         };
@@ -53,7 +53,10 @@ in
       rpcs3
     ];
 
-    allowedUnfree = [ "rpcs3" ];
+    allowedUnfree = [
+      "rpcs3"
+      "corefonts"
+    ];
 
     security.pam.loginLimits = [
       {
@@ -70,6 +73,10 @@ in
       }
     ];
 
+    fonts.packages = with pkgs; [
+      corefonts # Needed for Arial, otherwise launching games fails.
+    ];
+
     me.install.user.talexander.file = {
       ".config/rpcs3/config.yml" = lib.mkIf (config.me.rpcs3.config != null) {
         source = rpcs3_config_yaml;
@@ -81,6 +88,10 @@ in
         # Demon's Souls per-game config.
         source = ./files/config_BLUS30443.yml;
       };
+      ".config/rpcs3/custom_configs/config_BLUS30421.yml" = {
+        # The Lord of the Rings The War in the North per-game config.
+        source = ./files/config_BLUS30421.yml;
+      };
       ".config/rpcs3/patches/patch.yml" = {
         # All of the available patches.
         source = ./files/patch.yml;

nix/configuration/roles/rpcs3/files/config_BLUS30421.yml

@@ -0,0 +1,14 @@
+Core:
+  SPU Block Size: Safe
+Video:
+  Write Color Buffers: true
+  Minimum Scalable Dimension: 640
+Net:
+  Internet enabled: Connected
+  IP address: 0.0.0.0
+  Bind address: 0.0.0.0
+  DNS address: 8.8.8.8
+  IP swap list: ""
+  UPNP Enabled: false
+  PSN status: RPCN
+  PSN Country: us

nix/kubernetes/configuration.nix

@@ -41,7 +41,7 @@
     nix.settings.experimental-features = [
       "nix-command"
       "flakes"
-      "ca-derivations"
+      # "ca-derivations"
       # "blake3-hashes"
       # "git-hashing"
     ];