refactor(sops): remove sops-nix integration and related configurations

- Removed `sops-nix` input from `flake.lock` and commented out its usage
  in `flake.nix`.
- Disabled `sops` configurations across various modules and programs,
  including `home-manager` and host-specific configurations.
- Commented out `sops`-related secrets and settings in `sops/default.nix`.
- Added a new `download-buffer-size` setting in `nix-darwin/config/nix.nix`.

Author: takeokunn

flake.lock

@@ -29,10 +29,10 @@
       inputs.nixpkgs.follows = "nixpkgs";
       inputs.home-manager.follows = "home-manager";
     };
-    sops-nix = {
-      url = "github:Mic92/sops-nix";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
+    # sops-nix = {
+    #   url = "github:Mic92/sops-nix";
+    #   inputs.nixpkgs.follows = "nixpkgs";
+    # };
     flake-parts.url = "github:hercules-ci/flake-parts";
     treefmt-nix = {
       url = "github:numtide/treefmt-nix";

flake.nix

@@ -52,12 +52,12 @@ let
     inherit pkgs emacsPkg;
   };
 
-  # sops
-  sops = [
-    (import ../sops {
-      homeDirectory = config.home.homeDirectory;
-    })
-  ];
+  # # sops
+  # sops = [
+  #   (import ../sops {
+  #     homeDirectory = config.home.homeDirectory;
+  #   })
+  # ];
 
   # mcp servers
   mcpServers = import ./mcp-servers {
@@ -73,7 +73,7 @@ in
     ++ advancedPrograms
     ++ basicServices
     ++ advancedServices
-    ++ sops
+    # ++ sops
     ++ mcpServers;
 
   home.stateVersion = "24.11";

home-manager/advanced.nix

@@ -10,7 +10,7 @@ let
     playwright.enable = true;
     brave-search = {
       enable = false;
-      envFile = config.sops.secrets.brave-api-token.path;
+      # envFile = config.sops.secrets.brave-api-token.path;
     };
   };
   settings = {

home-manager/mcp-servers/default.nix

@@ -3,7 +3,7 @@
   ./dust
   ./lnav
   ./peco
-  ./sops
+  # ./sops
   ./tig
   ./wget
   ./zellij

home-manager/modules/default.nix

@@ -1,18 +1,18 @@
-{
-  pkgs,
-  lib,
-  config,
-  ...
-}:
-let
-  cfg = config.programs.sops;
-in
-with lib;
-{
-  options.programs.sops = {
-    enable = mkEnableOption "Simple and flexible tool for managing secrets";
-    package = mkPackageOption pkgs "sops" { };
-  };
-
-  config = mkIf cfg.enable { home.packages = [ cfg.package ]; };
-}
+# {
+#   pkgs,
+#   lib,
+#   config,
+#   ...
+# }:
+# let
+#   cfg = config.programs.sops;
+# in
+# with lib;
+# {
+#   options.programs.sops = {
+#     enable = mkEnableOption "Simple and flexible tool for managing secrets";
+#     package = mkPackageOption pkgs "sops" { };
+#   };
+#
+#   config = mkIf cfg.enable { home.packages = [ cfg.package ]; };
+# }

home-manager/modules/sops/default.nix

@@ -21,7 +21,7 @@ let
   readline = import ./readline;
   ripgrep = import ./ripgrep;
   jq = import ./jq;
-  sops = import ./sops;
+  # sops = import ./sops;
   tig = import ./tig { inherit pkgs sources; };
   tmux = import ./tmux { inherit pkgs; };
   vim = import ./vim { inherit pkgs; };
@@ -47,7 +47,7 @@ in
   readline
   ripgrep
   jq
-  sops
+  # sops
   tig
   tmux
   vim

home-manager/programs/basic.nix

@@ -1,9 +1,9 @@
-{
-  programs.sops.enable = true;
-
-  programs.fish = {
-    shellInit = ''
-      set -x SOPS_PGP_FP 0F79C0AB03FD7A1C
-    '';
-  };
-}
+# {
+#   programs.sops.enable = true;
+#
+#   programs.fish = {
+#     shellInit = ''
+#       set -x SOPS_PGP_FP 0F79C0AB03FD7A1C
+#     '';
+#   };
+# }

home-manager/programs/sops/default.nix

@@ -1,7 +1,8 @@
 { inputs }:
 let
   inherit (inputs) nix-darwin home-manager;
-  inherit (inputs) nixpkgs sops-nix;
+  # inherit (inputs) nixpkgs sops-nix;
+  inherit (inputs) nixpkgs;
 
   system = "aarch64-darwin";
   pkgs = import nixpkgs { inherit system; };
@@ -26,7 +27,7 @@ nix-darwin.lib.darwinSystem {
     {
       home-manager = {
         useUserPackages = true;
-        sharedModules = [ sops-nix.homeManagerModules.sops ];
+        # sharedModules = [ sops-nix.homeManagerModules.sops ];
         users."${username}" = import ../../home-manager/advanced.nix;
         extraSpecialArgs = {
           inherit system username;

hosts/OPL2212-2/default.nix

@@ -1,7 +1,8 @@
 { inputs }:
 let
   inherit (inputs) nixpkgs xremap;
-  inherit (inputs) sops-nix home-manager disko;
+  # inherit (inputs) sops-nix home-manager disko;
+  inherit (inputs) home-manager disko;
 
   username = "take";
   system = "x86_64-linux";
@@ -17,11 +18,11 @@ nixpkgs.lib.nixosSystem {
     ./hardware-configuration.nix
     ./disko-config.nix
     disko.nixosModules.disko
-    sops-nix.nixosModules.sops
+    # sops-nix.nixosModules.sops
     home-manager.nixosModules.home-manager
     {
       home-manager.useUserPackages = true;
-      home-manager.sharedModules = [ sops-nix.homeManagerModules.sops ];
+      # home-manager.sharedModules = [ sops-nix.homeManagerModules.sops ];
       home-manager.users."${username}" = import ../../home-manager/advanced.nix;
       home-manager.extraSpecialArgs = {
         inherit system;