use modules

modules/common-packages.nix

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+{
+  pkgs,
+  lib,
+  config,
+  ...
+}: {
+  environment.systemPackages = with pkgs; [
+    # vim
+    wget
+    git
+    git-lfs
+    gnumake
+    zip
+    fish
+    trash-cli
+    tmux
+    zoxide
+    htop
+    unzip
+    tlrc
+    wakeonlan
+    # neovim
+    ani-cli
+    btop
+    pciutils
+    nodePackages.npm
+    nodejs
+    cloc
+    neofetch
+    cbonsai
+    cowsay
+    fortune
+    lolcat
+    cmatrix
+    inxi
+    age
+    sops
+    jq
+    onefetch
+    just
+    gh
+    starship
+    tree
+    ffmpeg
+    nix-output-monitor
+    yazi
+    ripgrep
+    nh
+    comma
+  ];
+
+  programs.steam = {
+    enable = true;
+    # Open ports in the firewall for Steam Remote Play
+    remotePlay.openFirewall = true;
+    # Open ports in the firewall for Source Dedicated Server
+    dedicatedServer.openFirewall = true;
+    # Open ports in the firewall for Steam Local Network Game Transfers
+    localNetworkGameTransfers.openFirewall = true;
+  };
+
+  programs.gnupg.agent = {
+    enable = true;
+    enableSSHSupport = true;
+  };
+
+  programs.direnv = {
+    enable = true;
+    package = pkgs.direnv;
+    silent = false;
+    loadInNixShell = true;
+    direnvrcExtra = "";
+    nix-direnv = {
+      enable = true;
+      package = pkgs.nix-direnv;
+    };
+  };
+}

modules/concentration.nix

@@ -0,0 +1,54 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}: {
+  options = {
+    blockYoutube = lib.mkOption {
+      type = lib.types.bool;
+      default = true;
+      description = "Disables youtube using /etc/hosts file";
+    };
+    blockTwitter = lib.mkOption {
+      type = lib.types.bool;
+      default = true;
+      description = "Disables twitter using /etc/hosts file";
+    };
+    blockBluesky = lib.mkOption {
+      type = lib.types.bool;
+      default = true;
+      description = "Disables bluesky using /etc/hosts file";
+    };
+  };
+
+  config = lib.mkMerge [
+    (lib.mkIf config.blockYoutube {
+      networking.extraHosts = ''
+        0.0.0.0   youtube.com
+        ::0       youtube.com
+
+        0.0.0.0   www.youtube.com
+        ::0       www.youtube.com
+      '';
+    })
+    (lib.mkIf config.blockTwitter {
+      networking.extraHosts = ''
+        0.0.0.0   twitter.com
+        ::0       twitter.com
+
+        0.0.0.0   www.twitter.com
+        ::0       www.twitter.com
+      '';
+    })
+    (lib.mkIf config.blockBluesky {
+      networking.extraHosts = ''
+        0.0.0.0  bsky.app
+        ::0      bsky.app
+
+        0.0.0.0  www.bsky.app
+        ::0      www.bsky.app
+      '';
+    })
+  ];
+}

modules/default.nix

@@ -0,0 +1,12 @@
+{
+  imports = [
+    ./arduino.nix
+    ./common-packages.nix
+    ./concentration.nix
+    ./firefox.nix
+    ./fonts.nix
+    ./i18n.nix
+    ./nix-settings.nix
+    ./secrets.nix
+  ];
+}

modules/firefox.nix

@@ -0,0 +1,102 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}: let
+  lock-false = {
+    Value = false;
+    Status = "locked";
+  };
+  lock-true = {
+    Value = true;
+    Status = "locked";
+  };
+in {
+  # Install firefox.
+  programs.firefox = {
+    enable = true;
+    languagePacks = [
+      "ja"
+      "tr"
+      "en-US"
+    ];
+
+    # profiles.osbm = {
+
+    # Check about:policies#documentation for options.
+    policies = {
+      DisableTelemetry = true;
+      DisableFirefoxStudies = true;
+      EnableTrackingProtection = {
+        Value = true;
+        Locked = true;
+        Cryptomining = true;
+        Fingerprinting = true;
+      };
+      # DisablePocket = true;
+      DisableFirefoxAccounts = true;
+      DisableAccounts = true;
+      DisableFirefoxScreenshots = true;
+      StartPage = "previous-session";
+      # OverrideFirstRunPage = "";
+      # OverridePostUpdatePage = "";
+      # DontCheckDefaultBrowser = true;
+      DisplayBookmarksToolbar = "always"; # alternatives: "never" or "newtab"
+      # DisplayMenuBar = "default-off"; # alternatives: "always", "never" or "default-on"
+      # SearchBar = "unified"; # alternat
+      ExtensionSettings = with builtins; let
+        extension = shortId: uuid: {
+          name = uuid;
+          value = {
+            install_url = "https://addons.mozilla.org/en-US/firefox/downloads/latest/${shortId}/latest.xpi";
+            installation_mode = "normal_installed";
+          };
+        };
+      in
+        listToAttrs [
+          (extension "tree-style-tab" "treestyletab@piro.sakura.ne.jp")
+          (extension "ublock-origin" "uBlock0@raymondhill.net")
+          (extension "bitwarden-password-manager" "{446900e4-71c2-419f-a6a7-df9c091e268b}")
+          (extension "motivation-new-tab" "")
+          (extension "return-youtube-dislikes" "{762f9885-5a13-4abd-9c77-433dcd38b8fd}")
+
+          # (extension "tabliss" "extension@tabliss.io")
+          # (extension "umatrix" "uMatrix@raymondhill.net")
+          # (extension "libredirect" "7esoorv3@alefvanoon.anonaddy.me")
+          # (extension "clearurls" "{74145f27-f039-47ce-a470-a662b129930a}")
+        ];
+      # To add additional extensions, find it on addons.mozilla.org, find
+      # the short ID in the url (like https://addons.mozilla.org/en-US/firefox/addon/!SHORT_ID!/)
+      # Then, download the XPI by filling it in to the install_url template, unzip it,
+      # run `jq .browser_specific_settings.gecko.id manifest.json` or
+      # `jq .applications.gecko.id manifest.json` to get the UUID
+    };
+
+    /*
+    ---- PREFERENCES ----
+    */
+    # Check about:config for options.
+    preferences = {
+      "browser.contentblocking.category" = true;
+      "extensions.pocket.enabled" = false;
+      "extensions.screenshots.disabled" = true;
+      "browser.topsites.contile.enabled" = false;
+      "browser.formfill.enable" = false;
+      "browser.search.suggest.enabled" = false;
+      "browser.search.suggest.enabled.private" = false;
+      "browser.urlbar.suggest.searches" = false;
+      "browser.urlbar.showSearchSuggestionsFirst" = false;
+      "browser.newtabpage.activity-stream.feeds.section.topstories" = false;
+      "browser.newtabpage.activity-stream.feeds.snippets" = false;
+      "browser.newtabpage.activity-stream.section.highlights.includePocket" = false;
+      "browser.newtabpage.activity-stream.section.highlights.includeBookmarks" = false;
+      "browser.newtabpage.activity-stream.section.highlights.includeDownloads" = false;
+      "browser.newtabpage.activity-stream.section.highlights.includeVisited" = false;
+      "browser.newtabpage.activity-stream.showSponsored" = false;
+      "browser.newtabpage.activity-stream.system.showSponsored" = false;
+      "browser.newtabpage.activity-stream.showSponsoredTopSites" = false;
+      "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
+    };
+  };
+}

modules/fonts.nix

@@ -0,0 +1,26 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}: {
+  fonts.packages = with pkgs; [
+    noto-fonts
+    noto-fonts-cjk-sans
+    noto-fonts-emoji
+    liberation_ttf
+    fira-code
+    fira-code-symbols
+    mplus-outline-fonts.githubRelease
+    dina-font
+    nerd-fonts.fira-code
+    nerd-fonts.ubuntu
+    proggyfonts
+    source-sans
+    source-sans-pro
+    source-serif-pro
+    font-awesome
+    font-awesome_5
+    roboto
+  ];
+}

modules/home.nix

@@ -0,0 +1,35 @@
+{
+  config,
+  pkgs,
+  stateVersion
+  ...
+}: {
+  # Home Manager needs a bit of information about you and the
+  # paths it should manage.
+  home.username = "osbm";
+  home.homeDirectory = "/home/osbm";
+
+  # Packages that should be installed to the user profile.
+  home.packages = [
+  ];
+
+  programs.git = {
+    enable = true;
+    userEmail = "osmanfbayram@gmail.com";
+    userName = "osbm";
+  };
+
+
+  # This value determines the Home Manager release that your
+  # configuration is compatible with. This helps avoid breakage
+  # when a new Home Manager release introduces backwards
+  # incompatible changes.
+  #
+  # You can update Home Manager without changing this value. See
+  # the Home Manager release notes for a list of state version
+  # changes in each release.
+  home.stateVersion = stateVersion;
+
+  # Let Home Manager install and manage itself.
+  programs.home-manager.enable = true;
+}

modules/i18n.nix

@@ -0,0 +1,38 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}: {
+  time.timeZone = "Europe/Istanbul";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "tr_TR.UTF-8";
+    LC_IDENTIFICATION = "tr_TR.UTF-8";
+    LC_MEASUREMENT = "tr_TR.UTF-8";
+    LC_MONETARY = "tr_TR.UTF-8";
+    LC_NAME = "tr_TR.UTF-8";
+    LC_NUMERIC = "tr_TR.UTF-8";
+    LC_PAPER = "tr_TR.UTF-8";
+    LC_TELEPHONE = "tr_TR.UTF-8";
+    LC_TIME = "ja_JP.UTF-8";
+  };
+
+  services.xserver.xkb = {
+    layout = "us";
+    variant = "";
+  };
+
+  i18n.inputMethod = {
+    type = "fcitx5";
+    enable = true;
+    fcitx5.addons = with pkgs; [
+      fcitx5-mozc
+      fcitx5-gtk
+      fcitx5-nord # a color theme
+    ];
+  };
+}

modules/nix-settings.nix

@@ -0,0 +1,25 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}: {
+  # Allow unfree packages
+  nixpkgs.config.allowUnfree = true; # TODO: replace this with allowUnfreePredicate
+
+  # enable nix flakes
+  nix.settings.experimental-features = ["nix-command" "flakes"];
+
+  nix.settings.trusted-users = ["root" "osbm"];
+
+  nix.gc = {
+    automatic = true;
+    dates = "weekly";
+    options = "--delete-older-than 30d";
+  };
+
+  nix.nixPath = ["nixpkgs=${pkgs.path}"];
+
+  # disable the database error TODO add nix-index search
+  programs.command-not-found.enable = false;
+}

modules/secrets.nix

@@ -0,0 +1,5 @@
+{
+  age.secrets = {
+    network-manager.file = ../secrets/network-manager.age;
+  };
+}