Add a nix-darwin config for a m1 mac mini.

Seeing if this is what is causing all my issues with files/directories in the nix store going missing.

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;

nix/configuration/flake.lock

@@ -170,11 +170,11 @@
         "rust-overlay": "rust-overlay_2"
       },
       "locked": {
-        "lastModified": 1785893798,
-        "narHash": "sha256-69nKdvM+E/66sj9R2HEK8i0p0TOt/0MSqfXiZjcJ9nI=",
+        "lastModified": 1786250497,
+        "narHash": "sha256-OPhVT5n9OyPDZA3mIO6D5jVVvp/QmG8nT5Trb0gouSs=",
         "ref": "refs/heads/main",
-        "rev": "6386febdb81eb1e072ad7cb568019f06618008fe",
-        "revCount": 41,
+        "rev": "0a270dcbdd51baa2895634a3baee29373db8337a",
+        "revCount": 42,
         "type": "git",
         "url": "https://code.fizz.buzz/talexander/nix_builder.git"
       },

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/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/rpcs3/default.nix

@@ -81,6 +81,10 @@ 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"
     ];

nix/nix-darwin/flake.lock

@@ -0,0 +1,49 @@
+{
+  "nodes": {
+    "nix-darwin": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1785389976,
+        "narHash": "sha256-0tLW8Ff5yt8AH97jw4ZpFJ0OCJ122zIlgWGDmOfU/VU=",
+        "owner": "nix-darwin",
+        "repo": "nix-darwin",
+        "rev": "15abb8c98f336cd8bd840d71059adebabe60bf04",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-darwin",
+        "ref": "master",
+        "repo": "nix-darwin",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1786348146,
+        "narHash": "sha256-we5zDEFfn8TgzeWKjKDMIjeQZ59omEPl23NIF+13/ys=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "d482ef84049d9b7276b83a06e4e4d76983830097",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nix-darwin": "nix-darwin",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

nix/nix-darwin/flake.nix

@@ -0,0 +1,128 @@
+# Initial install:
+#   Install nix: https://github.com/nixOS/nix-installer
+#   sudo nix run nix-darwin -- switch --flake .#garak
+#
+# Update after that:
+#   sudo darwin-rebuild switch --flake .#garak
+#
+# Manual:
+#   Install rosetta to run x86_64 programs:
+#   softwareupdate --install-rosetta --agree-to-license
+#
+#   Install homebrew for installing graphical apps:
+#   /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+{
+  description = "nix-darwin system flake";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    nix-darwin.url = "github:nix-darwin/nix-darwin/master";
+    nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = inputs@{ self, nix-darwin, nixpkgs }:
+  let
+    configuration = { pkgs, ... }: {
+      # List packages installed in system profile. To search by name, run:
+      # $ nix-env -qaP | grep wget
+      environment.systemPackages =
+        [
+          pkgs.tmux
+          pkgs.htop
+          pkgs.git
+        ];
+
+      # Necessary for using flakes on this system.
+      nix.settings.experimental-features = "nix-command flakes";
+
+      # Enable alternative shell support in nix-darwin.
+      # programs.fish.enable = true;
+
+      # Set Git commit hash for darwin-version.
+      system.configurationRevision = self.rev or self.dirtyRev or null;
+
+      # Used for backwards compatibility, please read the changelog before changing.
+      # $ darwin-rebuild changelog
+      system.stateVersion = 6;
+
+      # The platform the configuration will be used on.
+      nixpkgs.hostPlatform = "aarch64-darwin";
+
+      # Identifies which user some settings apply to.
+      system.primaryUser = "talexander";
+
+      # Enable Linux VM for building Linux binaries.
+      #
+      # Test with:
+      #   nix build --impure --expr '(with import <nixpkgs> { system = "aarch64-linux"; }; runCommand "foo" {} "uname -a > $out")'
+      nix.linux-builder.enable = true;
+
+      # system.defaults.CustomUserPreferences = {
+      #   "com.apple.desktopservices" = {
+      #     # Do not write .DS_Store files to external volumes
+      #     DSDontWriteNetworkStores = true;
+      #     DSDontWriteUSBStores = true;
+      #   };
+      #   "com.apple.screensaver" = {
+      #     # Ask for password when returning from screensaver
+      #     askForPassword = 1;
+      #     askForPasswordDelay = 0;
+      #   };
+      #   "com.apple.SoftwareUpdate" = {
+      #     AutomaticCheckEnabled = true;
+      #     # Download updates in the background
+      #     AutomaticDownload = 1;
+      #   };
+      # };
+
+      # Use homebrew to install graphical apps from casks.
+      # homebrew = {
+      #   enable = false;
+
+      #   casks = [
+      #     "firefox"
+      #   ];
+      # };
+
+      # system.defaults = {
+      #   dock = {
+      #     autohide = true;
+      #   };
+      # };
+
+      environment.variables = {
+        TERMINFO_DIRS = ["${pkgs.alacritty.terminfo.outPath}/share/terminfo"];
+      };
+
+      power = {
+        sleep = {
+          # sudo pmset -a displaysleep 10 sleep 0 disksleep 10
+          # Other options to consider: lowpowermode 0 standby 0 hibernatemode 0 powernap 0
+          #
+          # Defaults:
+          #   standby              0
+          #   Sleep On Power Button 1
+          #   autorestartatconnect 0
+          #   autorestart          0
+          #   powernap             1
+          #   networkoversleep     0
+          #   disksleep            10
+          #   sleep                1
+          #   ttyskeepawake        1
+          #   displaysleep         10
+          #   tcpkeepalive         1
+          #   womp                 1
+          #
+          computer = "never";
+          display = 10;
+          harddisk = 10;
+        };
+      };
+    };
+  in
+  {
+    darwinConfigurations."garak" = nix-darwin.lib.darwinSystem {
+      modules = [ configuration ];
+    };
+  };
+}