chore(nixvim): preserve branch-specific setup

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.codex/config.toml

@@ -0,0 +1,5 @@
+## Me
+
+[mcp_servers.nixos]
+command = "nix"
+args = ["run", "github:utensils/mcp-nixos", "--"]

TODO.md

@@ -1,3 +1 @@
-- Evaluate Plasma Manager when Plasma 6.7 support improves
 - Review system-wide package list periodically
-- Add additional hosts

flake.lock

@@ -1,5 +1,28 @@
 {
   "nodes": {
+    "agenix": {
+      "inputs": {
+        "darwin": "darwin",
+        "home-manager": "home-manager",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1770165109,
+        "narHash": "sha256-9VnK6Oqai65puVJ4WYtCTvlJeXxMzAp/69HhQuTdl/I=",
+        "owner": "ryantm",
+        "repo": "agenix",
+        "rev": "b027ee29d959fda4b60b57566d64c98a202e0feb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ryantm",
+        "repo": "agenix",
+        "type": "github"
+      }
+    },
     "apple-fonts": {
       "inputs": {
         "ci": "ci",
@@ -14,11 +37,11 @@
         "sf-pro": "sf-pro"
       },
       "locked": {
-        "lastModified": 1786018145,
+        "lastModified": 1787373040,
-        "narHash": "sha256-4cjJFmq6JC0Gk9wWt3aZzqovtmM9mikrDWjsBL2ZWu8=",
+        "narHash": "sha256-mSpL69LSAA/+cQx+v9tC2XC/DD7cUepUmhiMx0/Hw64=",
         "owner": "Lyndeno",
         "repo": "apple-fonts.nix",
-        "rev": "66b5379c6a429ad4ea6ff3943cc1f651df55cc70",
+        "rev": "69f20e9ba294420e4b6407a827c6b5aea3afcc12",
         "type": "github"
       },
       "original": {
@@ -73,15 +96,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1784665499,
+        "lastModified": 1788011267,
-        "narHash": "sha256-9BMxlTxCCDAeoNLtb1a/st7udtTIJep+wpUzquA29VU=",
+        "narHash": "sha256-mEq2kU+ljompTToZ44Afvm7d/rHJ5iMBl0tjZuyShJs=",
-        "owner": "nix-community",
+        "owner": "Mic92",
         "repo": "bun2nix",
-        "rev": "0f2a1f0b6f42cebe3b149bf62d38754c5e0e9729",
+        "rev": "5765b0614591f75ee8ba5596e81ae85c167d1071",
         "type": "github"
       },
       "original": {
-        "owner": "nix-community",
+        "owner": "Mic92",
+        "ref": "fix-structured-attrs-hook",
         "repo": "bun2nix",
         "type": "github"
       }
@@ -108,6 +132,28 @@
         "type": "github"
       }
     },
+    "darwin": {
+      "inputs": {
+        "nixpkgs": [
+          "agenix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1744478979,
+        "narHash": "sha256-dyN+teG9G82G+m+PX/aSAagkC+vUv0SgUw3XkPhQodQ=",
+        "owner": "lnl7",
+        "repo": "nix-darwin",
+        "rev": "43975d782b418ebf4969e9ccba82466728c2851b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "lnl7",
+        "ref": "master",
+        "repo": "nix-darwin",
+        "type": "github"
+      }
+    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": [
@@ -116,11 +162,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1785627969,
+        "lastModified": 1788450739,
-        "narHash": "sha256-4dtXQk/NMePegK/nWp5NSeuZKLATItOq61lpEvmXqGw=",
+        "narHash": "sha256-glZLQlzIn1fXH6PazR2iUmTo7kzzyYSshrWhLS9TqCU=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "427bf4bd9435fdf21321c8cc628c24efc14c0f7a",
+        "rev": "31729ca8cbdb4fa927b34e5f4353e6a83f39e993",
         "type": "github"
       },
       "original": {
@@ -130,6 +176,27 @@
       }
     },
     "flake-parts_2": {
+      "inputs": {
+        "nixpkgs-lib": [
+          "nixvim",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1787559586,
+        "narHash": "sha256-onL0VLf9vPllmT0H/OlURIU5r5t5WIEl7t4tVNKT0Nw=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "9d0d87172c374f89da73c1cfe6d81ae62feac1f1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "flake-parts_3": {
       "inputs": {
         "nixpkgs-lib": "nixpkgs-lib"
       },
@@ -150,15 +217,36 @@
     "home-manager": {
       "inputs": {
         "nixpkgs": [
+          "agenix",
           "nixpkgs"
         ]
       },
       "locked": {
-        "lastModified": 1786031233,
+        "lastModified": 1745494811,
-        "narHash": "sha256-TIDlLTLI1/pB7IqgjzcKQjpODQsZE2oII4XGG9B6KjI=",
+        "narHash": "sha256-YZCh2o9Ua1n9uCvrvi5pRxtuVNml8X2a03qIFfRKpFs=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "7834e82588860aaf780cec1366524456a70898d7",
+        "rev": "abfad3d2958c9e6300a883bd443512c55dfeb1be",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "home-manager_2": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1788458226,
+        "narHash": "sha256-UZTAlg8iKVEmyEXakzKmukrzFIKrXezYsRy9vajDrGw=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "aa308770461dcf22c333a5e8a31c8bddbde5bee9",
         "type": "github"
       },
       "original": {
@@ -172,15 +260,15 @@
         "bun2nix": "bun2nix",
         "flake-parts": "flake-parts",
         "nixpkgs": "nixpkgs_2",
-        "systems": "systems",
+        "systems": "systems_2",
         "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1786236470,
+        "lastModified": 1788481344,
-        "narHash": "sha256-eIRMdjSQKSUf5aug00ycVSsO+8kIVQy5bH+K28U9LfE=",
+        "narHash": "sha256-3jEfPEkegrp3ps+VuNT0i+kI4hhfDKoSICoUzZrXDOE=",
         "owner": "numtide",
         "repo": "llm-agents.nix",
-        "rev": "bd89b8dd8837cc8d3098524c7cfe08c884ad5569",
+        "rev": "496d8f2d508dcd4673a1480cd58b3e9bf3400c15",
         "type": "github"
       },
       "original": {
@@ -210,11 +298,11 @@
         "nixpkgs": "nixpkgs_3"
       },
       "locked": {
-        "lastModified": 1786241478,
+        "lastModified": 1788408011,
-        "narHash": "sha256-K/jbo7rTV0jRcDdHKL9VxGURqH61OJcCat9al7q9oMg=",
+        "narHash": "sha256-VErLyHIT3U4x64a2G6J6wplB4yDPIpMXlhUpBjUMNEE=",
         "owner": "nix-community",
         "repo": "nix-vscode-extensions",
-        "rev": "c7e586ad09d79ab867b055b818d4122334ff6dfe",
+        "rev": "f848614222a7ef023998450a6f6773e10f8adf83",
         "type": "github"
       },
       "original": {
@@ -256,11 +344,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1785975029,
+        "lastModified": 1788372231,
-        "narHash": "sha256-X44cn5rzytELc3NNoQsh0aLkjWA/QzPfc6HPQmsG3sU=",
+        "narHash": "sha256-7aqErvrAEz/5OcPA5p3M+tVOqeYc4oJXkNIPXfCqxAw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "70ce234312134a463ba7728e94da2486a1d237ac",
+        "rev": "9387b3fcc0c23c86661636da63faabad4235a0a6",
         "type": "github"
       },
       "original": {
@@ -288,11 +376,11 @@
     },
     "nixpkgs_4": {
       "locked": {
-        "lastModified": 1786106723,
+        "lastModified": 1788316716,
-        "narHash": "sha256-zDSUbpoeo/9ZmD2+wXnzxoo1+uhL8vxc0b8yuYMKYq0=",
+        "narHash": "sha256-bc7rSpXIdn9QWGNqfWcPZWOhEVF8NoeAZkWq0XWnf/k=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "f13ff45afd1bb73e640eaa08a7066dbed07e3238",
+        "rev": "3ed67ec0a4d3c7ab4ae1f04f8ee8df07bfa506a2",
         "type": "github"
       },
       "original": {
@@ -302,6 +390,42 @@
         "type": "github"
       }
     },
+    "nixpkgs_5": {
+      "locked": {
+        "lastModified": 1789844176,
+        "narHash": "sha256-COQmpo4lFIzMgUjr3ntDpjH0NwrCnf7N0uhR+6WPGP8=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "79b35bf0bda5cd110f856aa5b5b2c5ba4460dbf5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixvim": {
+      "inputs": {
+        "flake-parts": "flake-parts_2",
+        "nixpkgs": "nixpkgs_5",
+        "systems": "systems_3"
+      },
+      "locked": {
+        "lastModified": 1788190018,
+        "narHash": "sha256-59BAfH0txPAZrPBF4QJqwvUWppD+ICrcjA1LZAmPnrQ=",
+        "owner": "nix-community",
+        "repo": "nixvim",
+        "rev": "41844750e55f17b1385d5b09ca7ade5f11f49506",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixvim",
+        "type": "github"
+      }
+    },
     "ny": {
       "flake": false,
       "locked": {
@@ -339,12 +463,14 @@
     },
     "root": {
       "inputs": {
+        "agenix": "agenix",
         "apple-fonts": "apple-fonts",
-        "home-manager": "home-manager",
+        "home-manager": "home-manager_2",
         "llm-agents": "llm-agents",
         "nix-flatpak": "nix-flatpak",
         "nix-vscode-extensions": "nix-vscode-extensions",
         "nixpkgs": "nixpkgs_4",
+        "nixvim": "nixvim",
         "plasma-manager": "plasma-manager",
         "sidra": "sidra",
         "vscode-server": "vscode-server"
@@ -441,11 +567,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1785827118,
+        "lastModified": 1788475513,
-        "narHash": "sha256-tS2eSSpa1uLPUyIAJBpf00+A9KSHpC92gKMLavmHuio=",
+        "narHash": "sha256-JRZ3eQpeeExv3mR1icbZAjToe7MPm8XleJML0UsrAHg=",
         "owner": "wimpysworld",
         "repo": "sidra",
-        "rev": "0597e5438fe98fef935cb528c2c9aa5db60171c9",
+        "rev": "257dce10bd6805633d99e5cdae6897d014619dcc",
         "type": "github"
       },
       "original": {
@@ -469,6 +595,38 @@
         "type": "github"
       }
     },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_3": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1774449309,
+        "narHash": "sha256-brhZ8DmuGtzkCYHJg4HEd602amKm89Y9ytsFZ5uWD1w=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "c29398b59d2048c4ab79345812849c9bd15e9150",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "ref": "future-26.11",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "treefmt-nix": {
       "inputs": {
         "nixpkgs": [
@@ -477,11 +635,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1785945821,
+        "lastModified": 1786901030,
-        "narHash": "sha256-NLSyTCW4K4ofhNBllt3omPasm6QpralXH1DBZOc91Dw=",
+        "narHash": "sha256-WSFCsDSE5ffgD2MqzkM2CYjeFiKhRF/dJUN8uedb6YE=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "ae7910970dddc408fe6ab1c8e4b277bb21d72dc0",
+        "rev": "27b3b12a8e6375f28ebe122f07d230ca5459bbfa",
         "type": "github"
       },
       "original": {
@@ -492,7 +650,7 @@
     },
     "vscode-server": {
       "inputs": {
-        "flake-parts": "flake-parts_2"
+        "flake-parts": "flake-parts_3"
       },
       "locked": {
         "lastModified": 1784312229,

flake.nix

@@ -1,5 +1,5 @@
 {
-  description = "NixOS configuration for my homelab";
+  description = "my nixos configurations";
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
@@ -21,11 +21,16 @@
       url = "github:gmodena/nix-flatpak/?ref=latest";
     };
     vscode-server.url = "github:nix-community/nixos-vscode-server";
+    nixvim.url = "github:nix-community/nixvim";
     llm-agents.url = "github:numtide/llm-agents.nix";
     nix-vscode-extensions.url = "github:nix-community/nix-vscode-extensions";
+    agenix = {
+      url = "github:ryantm/agenix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
-  outputs = { self, nixpkgs, apple-fonts, home-manager, plasma-manager, sidra, vscode-server, nix-vscode-extensions, ... }@inputs: {
+  outputs = { self, nixpkgs, apple-fonts, home-manager, plasma-manager, sidra, vscode-server, nix-vscode-extensions, agenix, ... }@inputs: {
     nixosConfigurations = {
       miku-homelab = nixpkgs.lib.nixosSystem {
         system = "x86_64-linux";
@@ -36,6 +41,7 @@
           home-manager.nixosModules.home-manager
           inputs.nix-flatpak.nixosModules.nix-flatpak
           vscode-server.nixosModules.default
+          agenix.nixosModules.default
           {
             nixpkgs.overlays = [
               inputs.nix-vscode-extensions.overlays.default
@@ -48,8 +54,34 @@
             home-manager.extraSpecialArgs = { inherit inputs; };
             home-manager.sharedModules = [
               plasma-manager.homeModules.plasma-manager
+              inputs.nixvim.homeModules.nixvim
             ];
-            home-manager.users.emmatherock = import ./home/emmatherock/home.nix;
+            home-manager.users.emmatherock = { osConfig, ... }: {
+              imports = [ ./home/emmatherock/core.nix ] ++ osConfig.myHomeProfile.extraPrograms;
+            };
+          }
+        ];
+      };
+
+      vps = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+
+        specialArgs = { inherit inputs; };
+        modules = [
+          ./hosts/vps
+          home-manager.nixosModules.home-manager
+          vscode-server.nixosModules.default
+          agenix.nixosModules.default
+          {
+            home-manager.useGlobalPkgs = true;
+            home-manager.useUserPackages = true;
+            home-manager.extraSpecialArgs = { inherit inputs; };
+            home-manager.sharedModules = [
+              inputs.nixvim.homeModules.nixvim
+            ];
+            home-manager.users.emmatherock = { osConfig, ... }: {
+              imports = [ ./home/emmatherock/core.nix ] ++ osConfig.myHomeProfile.extraPrograms;
+            };
           }
         ];
       };

home/emmatherock/agents.nix

@@ -5,8 +5,9 @@ let
 in
 {
   home.packages = with agents; [
-    antigravity-cli
     codex
+    codex-acp
     claude-code
+    claude-agent-acp
   ];
 }

home/emmatherock/core.nix

@@ -0,0 +1,22 @@
+{ pkgs, ... }:
+{
+  imports = [
+    ./git.nix
+    ./shell.nix
+  ];
+
+  programs.home-manager.enable = true;
+  programs.btop.enable = true;
+
+  # Per-project toolchain resolution (nix-shell / flake devShell), used by
+  # nixvim's LSP servers so they don't need language toolchains installed globally.
+  programs.direnv = {
+    enable = true;
+    nix-direnv.enable = true;
+  };
+  home.packages = with pkgs; [
+    fastfetch
+  ];
+
+  home.stateVersion = "25.11";
+}

home/emmatherock/home.nix

@@ -1,18 +0,0 @@
-{
-  imports = [
-    ./agents.nix
-    ./audio.nix
-    ./desktop-apps.nix
-    ./deskflow.nix
-    ./gaming.nix
-    ./git.nix
-    ./media.nix
-    ./packages.nix
-    ./plasma.nix
-    ./shell.nix
-    ./vscode.nix
-  ];
-
-  programs.home-manager.enable = true;
-  home.stateVersion = "25.11";
-}

home/emmatherock/neovim.nix

@@ -0,0 +1,286 @@
+# Declarative Neovim config via nixvim. Goal: a real, lean IDE — not a
+# feature-for-feature VSCode clone. Every plugin here earns its place.
+
+{ pkgs, ... }:
+
+{
+  programs.nixvim = {
+    enable = true;
+    defaultEditor = true;
+    vimAlias = true; # `vim` -> nvim, handy when SSH'd into the VPS/homelab
+
+    colorschemes.catppuccin = {
+      enable = true;
+      settings.flavour = "mocha";
+    };
+
+    globals.mapleader = " ";
+
+    # --- System clipboard over OSC 52, so "+y / "+p work over SSH
+    #     (Termius -> VPS/homelab) without a local clipboard provider.
+    #     Requires Neovim 0.10+ for vim.ui.clipboard.osc52; confirmed
+    #     present (Neovim 0.12.5 on the pinned nixpkgs as of 2026-09).
+    extraConfigLua = ''
+      vim.g.clipboard = {
+        name = "OSC 52",
+        copy = {
+          ["+"] = require("vim.ui.clipboard.osc52").copy("+"),
+          ["*"] = require("vim.ui.clipboard.osc52").copy("*"),
+        },
+        paste = {
+          ["+"] = require("vim.ui.clipboard.osc52").paste("+"),
+          ["*"] = require("vim.ui.clipboard.osc52").paste("*"),
+        },
+      }
+    '';
+
+    opts = {
+      number = true;
+      relativenumber = true;
+      shiftwidth = 2;
+      tabstop = 2;
+      expandtab = true;
+      termguicolors = true;
+      signcolumn = "yes";
+      scrolloff = 8;
+    };
+
+    # --- File explorer ---
+    plugins.neo-tree = {
+      enable = true;
+      settings.window.width = 30;
+    };
+
+    # --- Fuzzy finder: files, grep, buffers, LSP symbols ---
+    plugins.telescope = {
+      enable = true;
+      extensions.fzf-native.enable = true;
+    };
+
+    # --- Treesitter: syntax highlighting/parsing for your stack ---
+    plugins.treesitter = {
+      enable = true;
+      settings.ensure_installed = [
+        "nix" "bash" "lua" "markdown" "json" "yaml"
+        "rust" "go" "gomod" "c" "cpp" "c_sharp" "python"
+        "javascript" "typescript" "tsx" "vue" "html" "css" "dockerfile"
+      ];
+    };
+
+    # --- LSP: one server per language/toolchain you use ---
+    plugins.lsp = {
+      enable = true;
+      servers = {
+        nixd.enable = true;
+        bashls.enable = true;
+        rust_analyzer = {
+          enable = true;
+          installCargo = true;
+          installRustc = true;
+        };
+        gopls.enable = true;
+        clangd.enable = true; # C / C++
+        csharp_ls.enable = true;
+        pyright.enable = true;
+        ts_ls.enable = true; # JS/TS, React
+        volar.enable = true; # Vue
+        html.enable = true;
+        cssls.enable = true;
+        tailwindcss.enable = true;
+        jsonls.enable = true;
+        dockerls.enable = true;
+        docker_compose_language_service.enable = true;
+      };
+      keymaps.lspBuf = {
+        "gd" = "definition";
+        "gr" = "references";
+        "K" = "hover";
+        "<leader>rn" = "rename";
+        "<leader>ca" = "code_action";
+      };
+    };
+
+    # --- Autocompletion ---
+    plugins.cmp = {
+      enable = true;
+      settings.sources = [
+        { name = "nvim_lsp"; }
+        { name = "luasnip"; }
+        { name = "path"; }
+        { name = "buffer"; }
+      ];
+      settings.snippet.expand = ''
+        function(args)
+          require("luasnip").lsp_expand(args.body)
+        end
+      '';
+      settings.mapping = {
+        "<Tab>" = ''
+          cmp.mapping(function(fallback)
+            if cmp.visible() then
+              cmp.select_next_item()
+            elseif require("luasnip").expand_or_jumpable() then
+              require("luasnip").expand_or_jump()
+            else
+              fallback()
+            end
+          end, { "i", "s" })
+        '';
+        "<S-Tab>" = ''
+          cmp.mapping(function(fallback)
+            if cmp.visible() then
+              cmp.select_prev_item()
+            elseif require("luasnip").jumpable(-1) then
+              require("luasnip").jump(-1)
+            else
+              fallback()
+            end
+          end, { "i", "s" })
+        '';
+      };
+    };
+    plugins.cmp-nvim-lsp.enable = true;
+    plugins.cmp_luasnip.enable = true;
+    plugins.cmp-path.enable = true;
+    plugins.cmp-buffer.enable = true;
+
+    # --- Snippets ---
+    plugins.luasnip = {
+      enable = true;
+      fromVscode = [ { paths = "${pkgs.vimPlugins.friendly-snippets}"; } ];
+    };
+
+    # --- Pairs and surrounding text ---
+    plugins.nvim-autopairs.enable = true;
+    plugins.nvim-surround.enable = true;
+
+    # --- Format on save ---
+    plugins.conform-nvim = {
+      enable = true;
+      settings = {
+        format_on_save = {
+          lsp_fallback = true;
+          timeout_ms = 500;
+        };
+        formatters_by_ft = {
+          rust = [ "rustfmt" ];
+          go = [ "gofmt" ];
+          c = [ "clang-format" ];
+          cpp = [ "clang-format" ];
+          python = [ "black" ];
+          javascript = [ "prettier" ];
+          typescript = [ "prettier" ];
+          javascriptreact = [ "prettier" ];
+          typescriptreact = [ "prettier" ];
+          vue = [ "prettier" ];
+          nix = [ "nixpkgs-fmt" ];
+        };
+      };
+    };
+
+    # --- Git: gutter signs, hunk stage/reset, blame ---
+    plugins.gitsigns.enable = true;
+
+    # --- Git: interactive status/commit/diff/blame ---
+    plugins.fugitive.enable = true;
+
+    # --- Statusline ---
+    plugins.lualine.enable = true;
+
+    # --- Discoverable keybindings while you're still learning ---
+    plugins.which-key.enable = true;
+
+    # --- AI agent: CodeCompanion, curated natively in nixvim ---
+    # Configured to reuse your existing `claude`/`codex` CLI auth via ACP
+    # adapters instead of a separate Anthropic Console/OpenAI API key.
+    #
+    # Verified against https://codecompanion.olimorris.dev/configuration/adapters-acp
+    # (CodeCompanion >= v18.0.0, which is what's pinned by nixvim's nixpkgs as of
+    # 2026-08). Two things changed from an older/assumed layout:
+    #   - the default-adapter key is `interactions.chat.adapter`, not
+    #     `strategies.chat.adapter` (renamed in v18.0.0);
+    #   - the built-in adapter name is `claude_code` (no `_acp` suffix) and
+    #     lives under `adapters.acp.<name>`.
+    #
+    # Neither adapter has a true zero-config mode that silently piggybacks on
+    # an already-logged-in CLI session:
+    #   - codex: extends the built-in `codex` preset. `defaults.auth_method`
+    #     accepts "api-key" | "chat-gpt" (confirmed against the docs above,
+    #     not "chatgpt"/"openai-api-key"/"codex-api-key"). "chat-gpt" reuses
+    #     your ChatGPT/Codex CLI login instead of an OPENAI_API_KEY.
+    #   - claude_code: there's no oauth-personal equivalent. Run
+    #     `claude setup-token` once (ties to your Pro/Max subscription rather
+    #     than a Console API key) and save the result to
+    #     ~/.config/codecompanion/claude-oauth-token (chmod 600, outside the
+    #     nix store). It's read at runtime via the `cmd:` prefix below rather
+    #     than embedded in this file.
+    plugins.codecompanion = {
+      enable = true;
+      settings = {
+        interactions.chat.adapter = "claude_code"; # switch to "codex" per-chat
+        interactions.inline.adapter = "claude_code";
+        adapters.acp = {
+          opts.show_presets = false;
+          claude_code.__raw = ''
+            function()
+              return require("codecompanion.adapters").extend("claude_code", {
+                env = {
+                  CLAUDE_CODE_OAUTH_TOKEN = "cmd:cat ~/.config/codecompanion/claude-oauth-token",
+                },
+              })
+            end
+          '';
+          codex.__raw = ''
+            function()
+              return require("codecompanion.adapters").extend("codex", {
+                defaults = {
+                  auth_method = "chat-gpt",
+                },
+              })
+            end
+          '';
+        };
+        adapters.http.opts.show_presets = false;
+          display.chat.window = {
+          layout = "vertical";
+          position = "right";
+          width = 0.4;
+        };
+      };
+    };
+
+    # --- Editor-level tooling only: formatters conform.nvim shells out to.
+    #     Language toolchains themselves (cargo, go, dotnet-sdk, nodejs,
+    #     a compiler, a python interpreter) come from your per-project
+    #     nix-shell / flake devShell, not from here — launch nvim from
+    #     inside that shell (`nix develop`, or nix-shell + direnv) so LSP
+    #     servers resolve the right toolchain via PATH.
+    extraPackages = with pkgs; [
+      python3Packages.black
+      prettier
+      nixpkgs-fmt
+      file
+      ripgrep
+      sqlite
+    ];
+
+    keymaps = [
+      { mode = "n"; key = "<leader>e"; action = "<cmd>Neotree toggle<CR>"; }
+      { mode = "n"; key = "<leader>ff"; action = "<cmd>Telescope find_files<CR>"; }
+      { mode = "n"; key = "<leader>fg"; action = "<cmd>Telescope live_grep<CR>"; }
+      { mode = "n"; key = "<leader>fb"; action = "<cmd>Telescope buffers<CR>"; }
+
+      # CodeCompanion
+      { mode = [ "n" "v" ]; key = "<leader>ac"; action = "<cmd>CodeCompanionChat Toggle<CR>"; }
+      { mode = "v"; key = "<leader>aa"; action = "<cmd>CodeCompanionChat Add<CR>"; }
+      { mode = "n"; key = "<leader>ai"; action = "<cmd>CodeCompanion<CR>"; } # inline assistant
+
+      # Fugitive
+      { mode = "n"; key = "<leader>gs"; action = "<cmd>Git<CR>"; } # status
+      { mode = "n"; key = "<leader>gc"; action = "<cmd>Git commit<CR>"; } # interactive commit
+      { mode = "n"; key = "<leader>gp"; action = "<cmd>Git push<CR>"; }
+      { mode = "n"; key = "<leader>gl"; action = "<cmd>Git pull<CR>"; }
+      { mode = "n"; key = "<leader>gd"; action = "<cmd>Gvdiffsplit<CR>"; } # diff current file
+    ];
+  };
+}

home/emmatherock/packages.nix

@@ -1,10 +1,8 @@
 { pkgs, ... }:
 {
+  programs.btop.package = pkgs.btop.override { cudaSupport = false; rocmSupport = true; };
+
   home.packages = with pkgs; [
-    # --- Base y Terminal ---
-    vim
-    fastfetch
-    (btop.override { cudaSupport = false; rocmSupport = true; })
     nvtopPackages.full
   ];
 }

home/emmatherock/plasma.nix

@@ -1,10 +1,23 @@
 { config, pkgs, ... }:
 {
-  home.packages = [ pkgs.bibata-cursors pkgs.breeze-enhanced ];
+  home.packages = [ pkgs.layan-cursors pkgs.breeze-enhanced ];
+
+    home.pointerCursor = {
+    enable = true;
+    name = "layan-cursors";
+    package = pkgs.layan-cursors;
+    size = 24;
+    gtk.enable = true;
+  };
   
   programs.plasma = {
     enable = true;
 
+    workspace.cursor = {
+      theme = "layan-cursors";
+      size = 24;
+    };
+
     shortcuts = {
 
       # Atajos personalizados para scripts propios (net.local.*)

hosts/miku-homelab/default.nix

@@ -1,26 +1,105 @@
-{ pkgs, ... }:
+{ config, pkgs, ... }:
 
 {
   imports = [
     ./hardware-configuration.nix
-    ../../modules/security/secureboot.nix
+    ../../modules/profiles/desktop.nix
-    ../../modules/services/maintenance.nix
+    ../../modules/profiles/server.nix
-    ../../modules/services/flatpak.nix
+    ../../modules/services/ollama.nix
-    ../../modules/system/audio.nix
+    ../../modules/services/samba.nix
-    ../../modules/system/fonts.nix
+    ../../modules/system/home-profile.nix
-    ../../modules/system/gaming.nix
-    ../../modules/system/graphics.nix
     ../../modules/system/nix-ld.nix
     ../../modules/system/packages.nix
-    ../../modules/system/shells.nix
-    ../../modules/system/users.nix
-    ../../modules/system/networking.nix
-    ../../modules/desktop/firefox.nix
-    ../../modules/desktop/plasma.nix
-    ../../modules/services/containers.nix
-    ../../modules/services/vscode-server.nix
   ];
 
+  age.secrets.miku-homelab-wg.file = ../../secrets/miku-homelab-wg.age;
+
+  myPackages.extra = with pkgs; [
+    rocmPackages.rocm-smi
+    btrfs-progs
+    distrobox
+    steam-run
+  ];
+
+  myHomeProfile.extraPrograms = [
+    ../../home/emmatherock/agents.nix
+    ../../home/emmatherock/audio.nix
+    ../../home/emmatherock/desktop-apps.nix
+    ../../home/emmatherock/deskflow.nix
+    ../../home/emmatherock/gaming.nix
+    ../../home/emmatherock/media.nix
+    #../../home/emmatherock/neovim.nix
+    ../../home/emmatherock/packages.nix
+    ../../home/emmatherock/plasma.nix
+    ../../home/emmatherock/vscode.nix
+  ];
+
+  myNetworking = {
+    hostName = "miku-homelab";
+    useNetworkManager = true;
+    staticIp = {
+      interface = "enp6s0";
+      address = "10.1.1.21";
+      prefixLength = 24;
+      gateway = "10.1.1.1";
+      nameservers = [ "1.1.1.1" "8.8.8.8" ];
+    };
+    extraUdpPorts = [ 80 443 4242 49983 24800 26900 60977 ];
+    extraTcpPorts = [ 80 443 4242 49983 24800 26900 60977 ];
+    sshAllowUsers = [ "emmatherock" ];
+    wireguard = {
+      enable = true;
+      ips = [ "10.20.0.2/24" ];
+      privateKeyFile = config.age.secrets.miku-homelab-wg.path;
+      peers = [
+        {
+          publicKey = "BKs9VlsIEM1np6wHeVFL4NfbS1l69xnwins6Q12ByAM=";
+          allowedIPs = [ "10.20.0.1/32" ];
+          endpoint = "vps.external.mikufanclub.lat:51822";
+          persistentKeepalive = 25;
+        }
+      ];
+    };
+  };
+
+  myUsers = {
+    admins.emmatherock = {
+      description = "EmmaTheRock";
+      shell = pkgs.fish;
+      extraGroups = [ "plugdev" "networkmanager" "wheel" "video" "mikushare-group" "render" ];
+      authorizedKeys = [
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIA8vfwM5g9RJXqHtqTgNqsYg9SxSm+UMvFqTjBoAsLJ6 emmatherock@MAIN-PC"
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIO6pnKpUEaeoNXqlenc8MAz1GG8P6BRILyIHMSLtvdeF termius"
+      ];
+    };
+    serviceUsers.mikushare = {
+      description = "Acceso remoto Mikufanclub";
+      group = "mikushare-group";
+      createHome = false;
+    };
+    extraGroups = [ "mikushare-group" "plugdev" ];
+  };
+
+  myContainers = {
+    enable = true;
+    storageDriver = "btrfs";
+    globalNetwork = "homelab_net";
+    composeStacks = {
+      tools = {
+        path = "/mnt/containers/tools";
+        after = [ "network-online.target" "tailscaled.service" ];
+      };
+      arrs = {
+        path = "/mnt/containers/arrs";
+        after = [ "docker-compose-tools.service" "local-fs.target" ];
+      };
+      gameservers = {
+        path = "/mnt/containers/gameserver";
+        after = [ "docker-compose-tools.service" ];
+      };
+    };
+  };
+
   boot = {
     loader = {
       efi.canTouchEfiVariables = true;
@@ -63,10 +142,28 @@
     SUBSYSTEM=="drm", KERNEL=="card*", SUBSYSTEMS=="pci", DRIVERS=="amdgpu", RUN+="/bin/sh -c 'chmod -R g+r /sys/class/drm/%k/device/'"
   '';
 
+  systemd.services.tailscale-udp-gro = {
+    description = "Configurar UDP GRO para Tailscale";
+    after = [ "network.target" ];
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = "${pkgs.ethtool}/bin/ethtool -K enp6s0 rx-udp-gro-forwarding on rx-gro-list on";
+      RemainAfterExit = true;
+    };
+  };
+
   nixpkgs.config.allowUnfree = true;
   nix.settings = {
     experimental-features = [ "nix-command" "flakes" ];
   };
 
+  zramSwap = {
+    enable = true;
+    algorithm = "zstd";
+    memoryPercent = 50;
+    priority = 100;
+  };
+
   system.stateVersion = "25.11";
 }

hosts/vps/default.nix

@@ -0,0 +1,90 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+    ../../modules/profiles/server.nix
+    ../../modules/system/home-profile.nix
+    ../../modules/system/nix-ld.nix
+    ../../modules/system/packages.nix
+  ];
+
+  age.secrets.vps-wg.file = ../../secrets/vps-wg.age;
+
+  myHomeProfile.extraPrograms = [
+    ../../home/emmatherock/agents.nix
+    ../../home/emmatherock/neovim.nix
+  ];
+
+  myNetworking = {
+    hostName = "vps";
+    useNetworkManager = false;
+    useNetworkd = true;
+    staticIp = {
+      interface = "ens3";
+      address = "23.175.41.196";
+      prefixLength = 27;
+      gateway = "23.175.41.225";
+      nameservers = [ "1.1.1.1" "1.0.0.1" ];
+      onlinkGateway = true;
+    };
+
+    extraTcpPorts = [ 80 443 ];
+    extraUdpPorts = [ 51822 ];
+    sshAllowUsers = [ "emmatherock" ];
+    wireguard = {
+      enable = true;
+      ips = [ "10.20.0.1/24" ];
+      privateKeyFile = config.age.secrets.vps-wg.path;
+      listenPort = 51822;
+      peers = [
+        {
+          publicKey = "bqxDHQNxOSFpTo3We9ujC2WljtaRBgiNEewW+Rlu10k=";
+          allowedIPs = [ "10.20.0.2/32" ];
+        }
+        {
+          publicKey = "6aw0w7v9uFGvLn/eSdf7z/ljvzz4kviYlSOSj0LKp1E=";
+          allowedIPs = [ "10.20.0.3/32" ];
+        }
+      ];
+    };
+  };
+
+  myUsers = {
+    admins.emmatherock = {
+      description = "EmmaTheRock";
+      shell = pkgs.fish;
+      extraGroups = [ "wheel" ];
+      authorizedKeys = [
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIA8vfwM5g9RJXqHtqTgNqsYg9SxSm+UMvFqTjBoAsLJ6 emmatherock@MAIN-PC"
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEUCpjAuJobymPPAoPjLdL1eD6g4v6wrquu3cyHP22Wj emmatherock@NixOS"
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIO6pnKpUEaeoNXqlenc8MAz1GG8P6BRILyIHMSLtvdeF termius"
+      ];
+    };
+  };
+
+  myContainers = {
+    enable = true;
+    composeStacks.core = {
+      path = "/opt/containers/core";
+      after = [ "network-online.target" ];
+    };
+  };
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.systemd-boot.configurationLimit = 10;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  # Required for this host to act as a Tailscale/Headscale exit node.
+  boot.kernel.sysctl = {
+    "net.ipv4.ip_forward" = 1;
+    "net.ipv6.conf.all.forwarding" = 1;
+  };
+
+  time.timeZone = "America/Argentina/Buenos_Aires";
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+
+  system.stateVersion = "26.05";
+}

hosts/vps/hardware-configuration.nix

@@ -0,0 +1,30 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/profiles/qemu-guest.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "ahci" "sd_mod" "sr_mod" "virtio_blk" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/9601-188F";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/2fe62056-55d1-4d2a-97a4-74451f7a63d0";
+      fsType = "ext4";
+    };
+
+  swapDevices = [ ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

modules/profiles/desktop.nix

@@ -0,0 +1,12 @@
+{
+  imports = [
+    ../desktop/firefox.nix
+    ../desktop/plasma.nix
+    ../system/gaming.nix
+    ../system/audio.nix
+    ../system/graphics.nix
+    ../system/fonts.nix
+    ../security/secureboot.nix
+    ../services/flatpak.nix
+  ];
+}

modules/profiles/server.nix

@@ -0,0 +1,10 @@
+{
+  imports = [
+    ../system/networking.nix
+    ../system/users.nix
+    ../system/shells.nix
+    ../services/containers.nix
+    ../services/maintenance.nix
+    ../services/vscode-server.nix
+  ];
+}

modules/services/containers.nix

@@ -1,5 +1,63 @@
-{ pkgs, ... }: 
+{ lib, pkgs, config, ... }:
+
+let
+  cfg = config.myContainers;
+
+  composeStackOpts = { ... }: {
+    options = {
+      path = lib.mkOption {
+        type = lib.types.path;
+        description = "Directory containing the docker-compose.yml for this stack.";
+      };
+      after = lib.mkOption {
+        type = lib.types.listOf lib.types.str;
+        default = [ ];
+        description = "Extra systemd units this stack's compose service should start after and want, beyond docker.service.";
+      };
+    };
+  };
+
+  mkComposeService = name: stack: {
+    name = "docker-compose-${name}";
+    value = {
+      description = "Docker Compose stack: ${name}";
+      after = [ "docker.service" ] ++ lib.optional (cfg.globalNetwork != null) "init-docker-networks.service" ++ stack.after;
+      wants = [ "docker.service" ] ++ lib.optional (cfg.globalNetwork != null) "init-docker-networks.service" ++ stack.after;
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig = {
+        Type = "oneshot";
+        RemainAfterExit = true;
+        WorkingDirectory = stack.path;
+        ExecStart = "${pkgs.docker}/bin/docker compose up -d --remove-orphans";
+        ExecStop = "${pkgs.docker}/bin/docker compose down";
+      };
+    };
+  };
+in
 {
+  options.myContainers = {
+    enable = lib.mkEnableOption "Docker/Podman container support and Docker Compose stacks";
+
+    storageDriver = lib.mkOption {
+      type = lib.types.nullOr (lib.types.enum [ "aufs" "btrfs" "devicemapper" "overlay" "overlay2" "zfs" ]);
+      default = null;
+      description = "Docker storage driver to use. Leave null to let Docker choose.";
+    };
+
+    globalNetwork = lib.mkOption {
+      type = lib.types.nullOr lib.types.str;
+      default = null;
+      description = "Name of a shared Docker network to create on boot, for compose stacks to join. Leave null to skip.";
+    };
+
+    composeStacks = lib.mkOption {
+      type = lib.types.attrsOf (lib.types.submodule composeStackOpts);
+      default = { };
+      description = "Docker Compose stacks to run as systemd services, each producing a docker-compose-<name> unit.";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
     virtualisation = {
       containers.enable = true;
       podman = {
@@ -8,63 +66,27 @@
       };
       docker = {
         enable = true;
-      storageDriver = "btrfs";
+        storageDriver = cfg.storageDriver;
         daemon.settings = {
           dns = [ "1.1.1.1" "8.8.8.8" ];
         };
       };
     };
 
- systemd.services = {
+    systemd.services =
+      lib.optionalAttrs (cfg.globalNetwork != null) {
         init-docker-networks = {
-    description = "Crear redes globales de Docker si no existen";
+          description = "Create the ${cfg.globalNetwork} Docker network if it doesn't exist";
           after = [ "docker.service" ];
           requires = [ "docker.service" ];
           wantedBy = [ "multi-user.target" ];
           serviceConfig = {
             Type = "oneshot";
             RemainAfterExit = true;
-      ExecStart = "${pkgs.bash}/bin/bash -c '${pkgs.docker}/bin/docker network inspect homelab_net >/dev/null 2>&1 || ${pkgs.docker}/bin/docker network create homelab_net'";
+            ExecStart = "${pkgs.bash}/bin/bash -c '${pkgs.docker}/bin/docker network inspect ${cfg.globalNetwork} >/dev/null 2>&1 || ${pkgs.docker}/bin/docker network create ${cfg.globalNetwork}'";
-    };
-  };
-  docker-compose-tools = {
-    description = "Stack de Docker Compose: Tools";
-    after = [ "docker.service" "network-online.target" "tailscaled.service" ];
-    wants = [ "docker.service" "network-online.target" ];
-    wantedBy = [ "multi-user.target" ];
-    serviceConfig = {
-      Type = "oneshot";
-      RemainAfterExit = true;
-      WorkingDirectory = "/mnt/containers/tools";
-      ExecStart = "${pkgs.docker}/bin/docker compose up -d --remove-orphans";
-      ExecStop = "${pkgs.docker}/bin/docker compose down";
-    };
-  };
-  docker-compose-arrs = {
-    description = "Stack de Docker Compose: Arrs";
-    after = [ "docker.service" "docker-compose-tools.service" "local-fs.target" ];
-    wants = [ "docker.service" "docker-compose-tools.service" ];
-    wantedBy = [ "multi-user.target" ];
-    serviceConfig = {
-      Type = "oneshot";
-      RemainAfterExit = true;
-      WorkingDirectory = "/mnt/containers/arrs";
-      ExecStart = "${pkgs.docker}/bin/docker compose up -d --remove-orphans";
-      ExecStop = "${pkgs.docker}/bin/docker compose down";
-    };
-  };
-  docker-compose-gameservers = {
-    description = "Stack de Docker Compose: Gameservers";
-    after = [ "docker.service" "docker-compose-tools.service" ];
-    wants = [ "docker.service" ];
-    wantedBy = [ "multi-user.target" ];
-    serviceConfig = {
-      Type = "oneshot";
-      RemainAfterExit = true;
-      WorkingDirectory = "/mnt/containers/gameserver";
-      ExecStart = "${pkgs.docker}/bin/docker compose up -d --remove-orphans";
-      ExecStop = "${pkgs.docker}/bin/docker compose down";
-    };
           };
         };
       }
+      // lib.mapAttrs' mkComposeService cfg.composeStacks;
+  };
+}

modules/services/ollama.nix

@@ -0,0 +1,35 @@
+{ pkgs, ... }:
+
+{
+  services.ollama = {
+    enable = true;
+    # `services.ollama.acceleration` does not exist (that option only lives on
+    # services.tabby); GPU backend selection for ollama is done by package choice.
+    package = pkgs.ollama-rocm;
+
+    # Same "don't expose services directly" pattern as the rest of the homelab:
+    # bind to localhost only. If this needs to be reachable from other devices
+    # later, put it behind Traefik + Headscale like the other services instead
+    # of opening it up directly.
+    host = "127.0.0.1";
+    port = 11434;
+
+    environmentVariables = {
+      # Ollama is on-demand by design: it loads a model into VRAM on the first
+      # request and unloads it after this much idle time. 5m is already the
+      # ollama default, set explicitly so it's not an implicit behavior.
+      OLLAMA_KEEP_ALIVE = "5m";
+    };
+
+    # RDNA4 (gfx1200/gfx1201, incl. the RX 9060 XT) has official ROCm support
+    # since ROCm 6.4.4. Verified on this host (2026-08-30) with rocmPackages.clr
+    # 7.2.3: `rocminfo` correctly reports "Name: gfx1200" and `rocm-smi
+    # --showmeminfo vram` reports the full 16GiB, so the "detected with 0 VRAM,
+    # falls back to CPU" issue does not reproduce here and rocmOverrideGfx is
+    # not needed. If a future nixpkgs bump regresses this, re-check with:
+    #   nix shell nixpkgs#rocmPackages.rocminfo -c rocminfo | grep -i gfx
+    #   nix shell nixpkgs#rocmPackages.rocm-smi -c rocm-smi --showmeminfo vram
+    # and only then set rocmOverrideGfx = "12.0.0"; (gfx1200) if VRAM reports 0.
+    # rocmOverrideGfx = "12.0.0";
+  };
+}

modules/services/samba.nix

@@ -0,0 +1,27 @@
+{
+  services.samba = {
+    enable = true;
+    openFirewall = true;
+    settings = {
+      global = {
+        "vfs objects" = "acl_xattr";
+        "map acl inherit" = "yes";
+        "store dos attributes" = "yes";
+      };
+      mikufanclub = {
+        path = "/mnt/data/mikufanclub";
+        writable = "yes";
+        "valid users" = "mikushare emmatherock";
+        "force group" = "mikushare-group";
+        "create mask" = "0660";
+        "directory mask" = "0770";
+      };
+      data-private = {
+        path = "/mnt/data";
+        writable = "yes";
+        "valid users" = "emmatherock";
+        "browseable" = "yes";
+      };
+    };
+  };
+}

modules/system/home-profile.nix

@@ -0,0 +1,8 @@
+{ lib, ... }:
+{
+  options.myHomeProfile.extraPrograms = lib.mkOption {
+    type = lib.types.listOf lib.types.path;
+    default = [ ];
+    description = "Extra Home Manager modules to import for this user, on top of the core profile.";
+  };
+}

modules/system/networking.nix

@@ -1,81 +1,207 @@
-{ config, pkgs, ... }: {
+{ config, lib, ... }:
-  networking = {
+
-    hostName = "miku-homelab";
+let
-    networkmanager.enable = true;
+  cfg = config.myNetworking;
+
+  wireguardPeerOpts = { ... }: {
+    options = {
+      publicKey = lib.mkOption {
+        type = lib.types.str;
+        description = "Public key of the remote WireGuard peer.";
+      };
+      allowedIPs = lib.mkOption {
+        type = lib.types.listOf lib.types.str;
+        description = "IP ranges routed through this peer.";
+      };
+      endpoint = lib.mkOption {
+        type = lib.types.nullOr lib.types.str;
+        default = null;
+        description = "Endpoint (host:port) of the remote peer, if it has a stable address.";
+      };
+      persistentKeepalive = lib.mkOption {
+        type = lib.types.nullOr lib.types.int;
+        default = null;
+        description = "Interval in seconds for sending keepalive packets to this peer.";
+      };
+    };
+  };
+in
+{
+  options.myNetworking = {
+    hostName = lib.mkOption {
+      type = lib.types.str;
+      description = "The system hostname.";
+    };
+
+    useNetworkManager = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      description = "Whether to enable NetworkManager to manage network interfaces.";
+    };
+
+    useNetworkd = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      description = "Whether to configure the static IP via systemd-networkd instead of the classic scripted networking backend. Needed for reliable onlink default routes.";
+    };
+
+    staticIp = lib.mkOption {
+      type = lib.types.nullOr (lib.types.submodule {
+        options = {
+          interface = lib.mkOption {
+            type = lib.types.str;
+            description = "Network interface to assign the static address to.";
+          };
+          address = lib.mkOption {
+            type = lib.types.str;
+            description = "Static IPv4 address for the interface.";
+          };
+          prefixLength = lib.mkOption {
+            type = lib.types.int;
+            description = "IPv4 prefix length for the static address.";
+          };
+          gateway = lib.mkOption {
+            type = lib.types.str;
+            description = "Default gateway address.";
+          };
+          nameservers = lib.mkOption {
+            type = lib.types.listOf lib.types.str;
+            default = [ "1.1.1.1" "8.8.8.8" ];
+            description = "DNS nameservers to use.";
+          };
+          onlinkGateway = lib.mkOption {
+            type = lib.types.bool;
+            default = false;
+            description = "Whether the gateway lies outside the interface's subnet, requiring the onlink flag on the default route.";
+          };
+        };
+      });
+      default = null;
+      description = "Static IPv4 configuration for this host. Leave null to rely on DHCP or NetworkManager.";
+    };
+
+    extraUdpPorts = lib.mkOption {
+      type = lib.types.listOf lib.types.port;
+      default = [ ];
+      description = "Additional UDP ports to open in the firewall, beyond the Tailscale port.";
+    };
+
+    extraTcpPorts = lib.mkOption {
+      type = lib.types.listOf lib.types.port;
+      default = [ ];
+      description = "Additional TCP ports to open in the firewall, beyond SSH.";
+    };
+
+    sshAllowUsers = lib.mkOption {
+      type = lib.types.listOf lib.types.str;
+      default = [ ];
+      description = "Usernames allowed to log in over SSH. Empty means no restriction is applied.";
+    };
+
+    wireguard = {
+      enable = lib.mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = "Whether to configure a WireGuard interface named wg-<hostName> on this host.";
+      };
+      ips = lib.mkOption {
+        type = lib.types.listOf lib.types.str;
+        default = [ ];
+        description = "IP addresses (with prefix length) assigned to the local WireGuard interface.";
+      };
+      privateKeyFile = lib.mkOption {
+        type = lib.types.nullOr lib.types.str;
+        default = null;
+        description = "Path to the file containing this host's WireGuard private key.";
+      };
+      listenPort = lib.mkOption {
+        type = lib.types.nullOr lib.types.port;
+        default = null;
+        description = "UDP port for the WireGuard interface to listen on. Leave null to auto-select, which is fine for hosts that only initiate connections outward.";
+      };
+      peers = lib.mkOption {
+        type = lib.types.listOf (lib.types.submodule wireguardPeerOpts);
+        default = [ ];
+        description = "WireGuard peers this host connects to.";
+      };
+    };
+  };
+
+  config = lib.mkMerge [
+    {
+      networking = lib.mkMerge [
+        {
+          hostName = cfg.hostName;
+          networkmanager.enable = cfg.useNetworkManager;
           firewall = {
             enable = true;
-      allowedUDPPorts = [ config.services.tailscale.port 80 443 4242 49983 24800 26900 60977];
+            allowedUDPPorts = [ config.services.tailscale.port ] ++ cfg.extraUdpPorts;
-      allowedTCPPorts = [ 22 80 443 4242 49983 24800 26900 60977];
+            allowedTCPPorts = [ 22 ] ++ cfg.extraTcpPorts;
           };
-    useDHCP = false;
-    interfaces.enp6s0.ipv4.addresses = [{
-      address = "10.1.1.21";
-      prefixLength = 24;
-    }];
-    defaultGateway = "10.1.1.1";
-    nameservers = [ "1.1.1.1" "8.8.8.8" ];
-
-    wireguard.interfaces = {
-      wg-miku-homelab = {
-        ips = [ "10.20.0.2/24" ];
-        privateKeyFile = "/etc/wireguard/miku-homelab_private.key";
-
-        peers = [
-          {
-            publicKey = "zERcSEQhan+xtmPOIjuVSkQaBynTjH96SgZZF9CZNV8=";
-            allowedIPs = [ "10.20.0.1/32" ];
-            endpoint = "vps.external.mikufanclub.lat:51822";
-            persistentKeepalive = 25;
         }
+        (lib.mkIf (cfg.staticIp != null && !cfg.useNetworkd) {
+          useDHCP = false;
+          interfaces.${cfg.staticIp.interface}.ipv4.addresses = [{
+            address = cfg.staticIp.address;
+            prefixLength = cfg.staticIp.prefixLength;
+          }];
+          nameservers = cfg.staticIp.nameservers;
+        })
+        (lib.mkIf (cfg.staticIp != null && !cfg.useNetworkd && !cfg.staticIp.onlinkGateway) {
+          defaultGateway = cfg.staticIp.gateway;
+        })
+        (lib.mkIf cfg.wireguard.enable {
+          wireguard.interfaces."wg-${cfg.hostName}" = {
+            ips = cfg.wireguard.ips;
+            privateKeyFile = cfg.wireguard.privateKeyFile;
+            listenPort = cfg.wireguard.listenPort;
+            peers = map (peer: {
+              inherit (peer) publicKey allowedIPs;
+            } // lib.optionalAttrs (peer.endpoint != null) {
+              inherit (peer) endpoint;
+            } // lib.optionalAttrs (peer.persistentKeepalive != null) {
+              inherit (peer) persistentKeepalive;
+            }) cfg.wireguard.peers;
+          };
+        })
       ];
-      };
-    };
-  };
 
       services.tailscale.enable = true;
+
       services.openssh = {
         enable = true;
         settings = {
           PermitRootLogin = "no";
           PasswordAuthentication = false;
-      AllowUsers = [ "emmatherock" ];
+        } // lib.optionalAttrs (cfg.sshAllowUsers != [ ]) {
-    };
+          AllowUsers = cfg.sshAllowUsers;
-  };
-
-  services.samba = {
-    enable = true;
-    openFirewall = true;
-    settings = {
-      global = {
-        "vfs objects" = "acl_xattr";
-        "map acl inherit" = "yes";
-        "store dos attributes" = "yes";
-      };
-      mikufanclub = {
-        path = "/mnt/data/mikufanclub";
-        writable = "yes";
-        "valid users" = "mikushare emmatherock";
-        "force group" = "mikushare-group";
-        "create mask" = "0660";
-        "directory mask" = "0770";
-      };
-      data-private = {
-        path = "/mnt/data";
-        writable = "yes";
-        "valid users" = "emmatherock";
-        "browseable" = "yes";
-      };
-    };
-  };
-
-  systemd.services.tailscale-udp-gro = {
-    description = "Configurar UDP GRO para Tailscale";
-    after = [ "network.target" ];
-    wantedBy = [ "multi-user.target" ];
-    serviceConfig = {
-      Type = "oneshot";
-      ExecStart = "${pkgs.ethtool}/bin/ethtool -K enp6s0 rx-udp-gro-forwarding on rx-gro-list on";
-      RemainAfterExit = true;
         };
       };
     }
+
+    (lib.mkIf (cfg.staticIp != null && cfg.useNetworkd) {
+      networking.useDHCP = false;
+      systemd.network.enable = true;
+      services.resolved.enable = true;
+
+      systemd.network.networks."10-${cfg.staticIp.interface}" = {
+        matchConfig.Name = cfg.staticIp.interface;
+        address = [ "${cfg.staticIp.address}/${toString cfg.staticIp.prefixLength}" ];
+        dns = cfg.staticIp.nameservers;
+        routes = [
+          ({
+            routeConfig = {
+              Gateway = cfg.staticIp.gateway;
+            } // lib.optionalAttrs cfg.staticIp.onlinkGateway {
+              GatewayOnLink = true;
+            };
+          })
+        ];
+        networkConfig = {
+          DHCP = "no";
+        };
+        linkConfig.RequiredForOnline = "routable";
+      };
+    })
+  ];
+}

modules/system/packages.nix

@@ -1,14 +1,25 @@
-{pkgs, ... }: 
+{ lib, pkgs, config, ... }:
+
+let
+  cfg = config.myPackages;
+in
 {
+  options.myPackages = {
+    extra = lib.mkOption {
+      type = lib.types.listOf lib.types.package;
+      default = [ ];
+      description = "Extra packages to install on this host, beyond the core set.";
+    };
+  };
+
+  config = {
     environment.systemPackages = with pkgs; [
       git
       wget
       curl
       ethtool
       fish
-    rocmPackages.rocm-smi
+      tmux
-    btrfs-progs
+    ] ++ cfg.extra;
-    distrobox
+  };
-    steam-run
-  ];
 }

modules/system/users.nix

@@ -1,25 +1,88 @@
-{ pkgs, ... }: {
+{ lib, pkgs, config, ... }:
+
+let
+  cfg = config.myUsers;
+
+  adminOpts = { ... }: {
+    options = {
+      description = lib.mkOption {
+        type = lib.types.str;
+        description = "Human-readable description (full name) for this user.";
+      };
+      shell = lib.mkOption {
+        type = lib.types.package;
+        default = pkgs.bash;
+        description = "Login shell package for this user.";
+      };
+      extraGroups = lib.mkOption {
+        type = lib.types.listOf lib.types.str;
+        default = [ ];
+        description = "Extra groups this user belongs to.";
+      };
+      authorizedKeys = lib.mkOption {
+        type = lib.types.listOf lib.types.str;
+        default = [ ];
+        description = "OpenSSH public keys authorized to log in as this user.";
+      };
+    };
+  };
+
+  serviceUserOpts = { ... }: {
+    options = {
+      description = lib.mkOption {
+        type = lib.types.str;
+        description = "Human-readable description for this service user.";
+      };
+      group = lib.mkOption {
+        type = lib.types.str;
+        description = "Primary group for this service user.";
+      };
+      createHome = lib.mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = "Whether to create a home directory for this service user.";
+      };
+    };
+  };
+in
+{
+  options.myUsers = {
+    admins = lib.mkOption {
+      type = lib.types.attrsOf (lib.types.submodule adminOpts);
+      default = { };
+      description = "Admin users with interactive shell access.";
+    };
+
+    serviceUsers = lib.mkOption {
+      type = lib.types.attrsOf (lib.types.submodule serviceUserOpts);
+      default = { };
+      description = "Service users without administrative privileges, used for things like file shares.";
+    };
+
+    extraGroups = lib.mkOption {
+      type = lib.types.listOf lib.types.str;
+      default = [ ];
+      description = "Extra system groups to create, beyond the ones implied by admins/serviceUsers.";
+    };
+  };
+
+  config = {
     environment.localBinInPath = true;
 
-  users.groups.mikushare-group = {};
+    users.groups = lib.genAttrs cfg.extraGroups (_: { });
 
-  users.groups.plugdev = {};
+    users.users = lib.mapAttrs
-
+      (_: admin: {
-  users.users.emmatherock = {
         isNormalUser = true;
-    description = "EmmaTheRock";
+        inherit (admin) description shell extraGroups;
-    shell = pkgs.fish;
+        openssh.authorizedKeys.keys = admin.authorizedKeys;
-    extraGroups = [ "plugdev" "networkmanager" "wheel" "video" "mikushare-group" "render" ];
+      })
-    openssh.authorizedKeys.keys = [
+      cfg.admins
-      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIA8vfwM5g9RJXqHtqTgNqsYg9SxSm+UMvFqTjBoAsLJ6 emmatherock@MAIN-PC"
+    // lib.mapAttrs
-      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIpTslcK0yQ6k+h8foNl17wVRyJUfEGzq7f1h3014WNB s21 plus"
+      (_: svc: {
-    ];
+        isSystemUser = true;
-  };
+        inherit (svc) description group createHome;
-
+      })
-  users.users.mikushare = {
+      cfg.serviceUsers;
-    isNormalUser = true;
-    description = "Acceso remoto Mikufanclub";
-    group = "mikushare-group";
-    createHome = false;
   };
 }

secrets/miku-homelab-wg.age

@@ -0,0 +1,9 @@
+age-encryption.org/v1
+-> ssh-ed25519 IW6ZLQ fGdkbwV5VE8c5ueKCr/q3Agl9cKnqzmpPUGQsOTMqVU
+ZvXNujDfCWxuprM/2k7FR7aeNcpwU+cAd9H+ZByYOkE
+-> ssh-ed25519 h0IYxQ 3PzwNp8Sn8eeYBNMBKOJ+hoH9uxVlgV0RtqsPdZNtnM
+WDLCfjfmKsj3u0GL+luYLwwXit98RLbgwMBNzp+x24U
+-> ssh-ed25519 4D7N4w 3ndiKKCZSJoZNpn1HElFnyPOx8DeFJPm9iAMQdtm4SM
+KqX/oScwxOhOqHM1Z+uoXWMRZrCpl5ax6BuHiy6puwc
+--- CEVnIJUTA60ffvNCDrodud14KIfucXHub+tl7tXX/N4
+ÅШb³ú_zj(Ãö…s>îãF¼x£UßãFعÝÓÛñS·ˆ`†ŸOdÙ…N‰lÛFã%š LfÇ—FfÞ‡#ê6ò‘ðÎ

secrets/secrets.nix

@@ -0,0 +1,19 @@
+let
+  # Emma's personal SSH keys (same ones authorized in modules/system/users.nix),
+  # so secrets can be edited/re-keyed from his own workstations.
+  emma-main-pc = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIA8vfwM5g9RJXqHtqTgNqsYg9SxSm+UMvFqTjBoAsLJ6 emmatherock@MAIN-PC";
+  emma-s21-plus = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIpTslcK0yQ6k+h8foNl17wVRyJUfEGzq7f1h3014WNB s21 plus";
+  emma-nixos = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEUCpjAuJobymPPAoPjLdL1eD6g4v6wrquu3cyHP22Wj emmatherock@NixOS";
+
+  # Host SSH host keys, used by agenix at runtime to decrypt (via the default
+  # age.identityPaths, which points at services.openssh host keys).
+  miku-homelab = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIH7zsQdzX7RHRd2plwrTKJR89uwR2YfzBm1n+HkcYEbb root@NixOS";
+
+  vps = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDh8+hpWkGLRszFI4TC1/YHB8IiSdM0UUOsWbOwXPLn6 root@vps";
+
+  admins = [ emma-main-pc emma-s21-plus emma-nixos ];
+in
+{
+  "miku-homelab-wg.age".publicKeys = admins ++ [ miku-homelab ];
+  "vps-wg.age".publicKeys = admins ++ [ vps ];
+}