1769288238

modules/nixos/shared/misc/default.nix

@@ -0,0 +1,60 @@
+{
+  lib,
+  pkgs,
+  # inputs,
+  ...
+}: {
+  imports = [
+    # inputs.chaotic.nixosModules.default
+    ./slim.nix
+    ./uutils.nix
+  ];
+  boot = {
+    consoleLogLevel = 0;
+    kernel.sysctl."vm.swappiness" = 10;
+    plymouth.enable = true;
+    initrd = {
+      systemd.enable = true;
+    };
+
+    kernelPackages = pkgs.linuxPackages_latest;
+    # kernelPackages = pkgs.linuxPackages_cachyos;
+
+    loader = {
+      timeout = 0;
+      efi.canTouchEfiVariables = true;
+      systemd-boot = {
+        consoleMode = "auto";
+        configurationLimit = lib.mkOverride 1337 10;
+      };
+    };
+    tmp.cleanOnBoot = lib.mkDefault true;
+  };
+
+  console.font = "${pkgs.spleen}/share/consolefonts/spleen-16x32.psfu";
+
+  environment = {
+    ldso32 = null;
+    # memoryAllocator.provider = "mimalloc"; # weird memory consumption stuff
+    variables = {
+      LESS = "-R --mouse";
+    };
+  };
+
+  networking.networkmanager.enable = true;
+
+  services.journald.extraConfig = ''
+    SystemMaxUse=1G
+  '';
+  systemd.coredump.extraConfig = ''
+    Storage=none
+    ProcessSizeMax=0
+  '';
+
+  zramSwap = {
+    enable = true;
+    algorithm = "zstd";
+    memoryPercent = 25;
+    priority = 5;
+  };
+}

modules/nixos/shared/misc/slim.nix

@@ -0,0 +1,20 @@
+{
+  # taken from https://github.com/NuschtOS/nixos-modules/blob/main/modules/slim.nix
+  documentation = {
+    # html docs and info are not required, man pages are enough
+    doc.enable = false;
+    info.enable = false;
+  };
+
+  # environment.defaultPackages = lib.mkForce [];
+
+  # programs.thunderbird.package = pkgs.thunderbird.override {cfg.speechSynthesisSupport = false;};
+
+  # during testing only 550K-650K of the tmpfs where used
+  security.wrapperDirSize = "10M";
+
+  services = {
+    orca.enable = false; # requires speechd
+    speechd.enable = false; # voice files are big and fat
+  };
+}

modules/nixos/shared/misc/uutils.nix

@@ -0,0 +1,63 @@
+{pkgs, ...}: let
+  coreutils-full-name =
+    "coreuutils-full"
+    + builtins.concatStringsSep ""
+    (builtins.genList (_: "_") (builtins.stringLength pkgs.coreutils-full.version));
+
+  coreutils-name =
+    "coreuutils"
+    + builtins.concatStringsSep ""
+    (builtins.genList (_: "_") (builtins.stringLength pkgs.coreutils.version));
+
+  findutils-name =
+    "finduutils"
+    + builtins.concatStringsSep ""
+    (builtins.genList (_: "_") (builtins.stringLength pkgs.findutils.version));
+
+  diffutils-name =
+    "diffuutils"
+    + builtins.concatStringsSep ""
+    (builtins.genList (_: "_") (builtins.stringLength pkgs.diffutils.version));
+in {
+  system.replaceDependencies.replacements = [
+    # coreutils
+    {
+      # system
+      oldDependency = pkgs.coreutils-full;
+      newDependency = pkgs.symlinkJoin {
+        # Make the name length match so it builds
+        name = coreutils-full-name;
+        paths = [pkgs.uutils-coreutils-noprefix];
+      };
+    }
+    {
+      # applications
+      oldDependency = pkgs.coreutils;
+      newDependency = pkgs.symlinkJoin {
+        # Make the name length match so it builds
+        name = coreutils-name;
+        paths = [pkgs.uutils-coreutils-noprefix];
+      };
+    }
+    # findutils
+    # {
+    #   # applications
+    #   oldDependency = pkgs.findutils;
+    #   newDependency = pkgs.symlinkJoin {
+    #     # Make the name length match so it builds
+    #     name = findutils-name;
+    #     paths = [pkgs.uutils-findutils];
+    #   };
+    # }
+    # diffutils
+    # {
+    #   # applications
+    #   oldDependency = pkgs.diffutils;
+    #   newDependency = pkgs.symlinkJoin {
+    #     # Make the name length match so it builds
+    #     name = diffutils-name;
+    #     paths = [pkgs.uutils-diffutils];
+    #   };
+    # }
+  ];
+}