bring back nix-darwin hosts compatability

modules/homebrew.nix

@@ -0,0 +1,44 @@
+{ config, pkgs, ... }:
+
+{
+  # Homebrew configuration for package management
+  homebrew = {
+    enable = true;
+    onActivation = {
+      autoUpdate = true;
+      cleanup = "zap";    # Removes unlisted formulae/casks
+      upgrade = true;
+    };
+    brews = [
+      # Command-line tools go here
+    ];
+    casks = [
+      # GUI applications - manually installed apps now managed by Homebrew
+      "keepassxc"
+      "keycastr"
+      "inkscape"
+      "firefox"
+      "obsidian"
+      "snipaste"
+      "ghostty"
+      "slidepilot"
+      "tencent-meeting"
+      "ovito"
+      "microsoft-powerpoint"
+      "microsoft-word"
+      "microsoft-excel"
+      "rectangle"
+    ];
+    taps = [
+      # Additional repositories if needed
+    ];
+  };
+
+  # nix-homebrew configuration for declarative Homebrew installation
+  nix-homebrew = {
+    enable = true;
+    enableRosetta = true;  # Apple Silicon support
+    user = "yanlin";
+    autoMigrate = true;    # Migrate existing Homebrew if present
+  };
+}

modules/lazygit.nix

@@ -334,8 +334,8 @@
       
       # OS settings
       os = {
-        open = "xdg-open {{filename}}";
-        openLink = "xdg-open {{link}}";
+        open = if pkgs.stdenv.isDarwin then "open {{filename}}" else "xdg-open {{filename}}";
+        openLink = if pkgs.stdenv.isDarwin then "open {{link}}" else "xdg-open {{link}}";
       };
       
       # Disable startup popup

modules/nvim.nix

@@ -262,12 +262,21 @@ in
         action = ":lua open_file_with_system_app()<CR>";
         options = { desc = "Open file with system default app"; };
       }
+    ] ++ (if pkgs.stdenv.isDarwin then [
+      {
+        mode = "n";
+        key = "<leader>f";
+        action = ":lua show_file_in_file_manager()<CR>";
+        options = { desc = "Show current file in Finder"; };
+      }
+    ] else [
       {
         mode = "n";
         key = "<leader>f";
         action = ":!thunar %:h &<CR><CR>";
         options = { desc = "Open current file directory in file manager"; };
       }
+    ]) ++ [
 
       # Markdown rendering
       {
@@ -307,11 +316,20 @@ in
       })
 
       -- Dictionary completion setup
-      require("cmp_dictionary").setup({
-        paths = { "${pkgs.scowl}/share/dict/wamerican.txt" },  -- Nix-provided dictionary
-        exact_length = 2,                                       -- Minimum length before completion
-        first_case_insensitive = true,                          -- Case insensitive matching
-      })
+      ${lib.optionalString pkgs.stdenv.isDarwin ''
+        require("cmp_dictionary").setup({
+          paths = { "/usr/share/dict/words" },  -- Standard dictionary path on macOS
+          exact_length = 2,                     -- Minimum length before completion
+          first_case_insensitive = true,        -- Case insensitive matching
+        })
+      ''}
+      ${lib.optionalString (!pkgs.stdenv.isDarwin) ''
+        require("cmp_dictionary").setup({
+          paths = { "${pkgs.scowl}/share/dict/wamerican.txt" },  -- Nix-provided dictionary on NixOS
+          exact_length = 2,                                       -- Minimum length before completion
+          first_case_insensitive = true,                          -- Case insensitive matching
+        })
+      ''}
 
       -- Jupytext setup for Jupyter notebook viewing
       require("jupytext").setup({
@@ -352,18 +370,21 @@ in
       }
 
       -- OSC-52 clipboard integration (matches tmux setup, works with Ghostty)
-      -- This enables clipboard functionality across SSH and tmux
-      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('*'),
-        },
-      }
+      -- This enables clipboard functionality across SSH, tmux, and multi-platform
+      -- Only enabled on Linux; macOS uses native clipboard with "unnamedplus"
+      ${lib.optionalString (!pkgs.stdenv.isDarwin) ''
+        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('*'),
+          },
+        }
+      ''}
 
       -- Close all buffers except current (preserving NvimTree and other special buffers)
       function close_other_buffers()
@@ -388,13 +409,28 @@ in
       function open_file_with_system_app()
         local filepath = vim.fn.expand('%:p')
         if filepath ~= "" then
-          -- Use jobstart for async execution (detach = true prevents blocking)
-          vim.fn.jobstart({'xdg-open', filepath}, {detach = true})
+          local escaped_path = vim.fn.shellescape(filepath)
+          ${if pkgs.stdenv.isDarwin then
+            "vim.fn.system('open ' .. escaped_path)"
+          else
+            "vim.fn.system('xdg-open ' .. escaped_path)"}
         else
           print("No file to open")
         end
       end
 
+      ${lib.optionalString pkgs.stdenv.isDarwin ''
+        function show_file_in_file_manager()
+          local filepath = vim.fn.expand('%:p')
+          if filepath ~= "" then
+            local escaped_path = vim.fn.shellescape(filepath)
+            vim.fn.system('open -R ' .. escaped_path)
+          else
+            print("No file to show")
+          end
+        end
+      ''}
+
       -- Render-markdown setup (off by default, toggle with <space>+m)
       require("render-markdown").setup({
         enabled = false,  -- Off by default, use <space>+m to toggle

modules/papis.nix

@@ -1,5 +1,10 @@
 { pkgs, lib, ... }:
 
+let
+  # Platform-aware papis config directory
+  papisConfigDir = if pkgs.stdenv.isDarwin then "Library/Application Support/papis" else ".config/papis";
+in
+
 {
   # Install papis package
   home.packages = [
@@ -8,11 +13,11 @@
     }))
   ];
   # Papis configuration
-  home.file.".config/papis/config".text = ''
+  home.file."${papisConfigDir}/config".text = ''
     [settings]
     default-library = main
     editor = nvim
-    opentool = evince
+    opentool = ${if pkgs.stdenv.isDarwin then "open -a Preview" else "evince"}
     
     # Document management
     ref-format = {doc[author]}{doc[year]}
@@ -43,7 +48,7 @@
   '';
 
   # Papis bibliography template
-  home.file.".config/papis/templates/bibitem.template".text = ''
+  home.file."${papisConfigDir}/templates/bibitem.template".text = ''
     {doc[title]} ({doc[year]}). {doc[author]}.
     Venue: {doc[journal]} {doc[booktitle]} {doc[eprinttype]} {doc[eprint]} {doc[eventtitle]}
     Tags: {doc[tags]}
@@ -52,7 +57,7 @@
   '';
 
   # Papis BibTeX template
-  home.file.".config/papis/templates/bibtex.template".text = ''
+  home.file."${papisConfigDir}/templates/bibtex.template".text = ''
     @{doc[type]}{{{doc[ref]},
       author = {{{doc[author]}}},
       title = {{{doc[title]}}},
@@ -68,23 +73,23 @@
   '';
 
   # Papis citation template
-  home.file.".config/papis/templates/citation.template".text = ''
+  home.file."${papisConfigDir}/templates/citation.template".text = ''
     {doc[author]}. "{doc[title]}." {doc[journal]}{doc[booktitle]} ({doc[year]}).
   '';
 
   # Shell aliases for papis workflow
   programs.zsh.shellAliases = {
     # Bibliography formatting
-    pals = "papis list --template \"$HOME/.config/papis/templates/bibitem.template\"";
+    pals = "papis list --template \"$HOME/${papisConfigDir}/templates/bibitem.template\"";
 
     # Add new entry with bibtex
     paadd = "papis add --from bibtex";
 
     # BibTeX export
-    pabib = "papis list --template \"$HOME/.config/papis/templates/bibtex.template\"";
+    pabib = "papis list --template \"$HOME/${papisConfigDir}/templates/bibtex.template\"";
 
     # Citation formatting
-    pacite = "papis list --template \"$HOME/.config/papis/templates/citation.template\"";
+    pacite = "papis list --template \"$HOME/${papisConfigDir}/templates/citation.template\"";
 
     # File operations
     paurl = "papis addto -u";

modules/rsync.nix

@@ -23,6 +23,12 @@
     --partial
     --partial-dir=.rsync-partial
 
+    ${lib.optionalString pkgs.stdenv.isDarwin ''
+      # Preserve extended attributes and ACLs (macOS)
+      --extended-attributes
+      --acls
+    ''}
+
     # Network optimization
     --compress
     --compress-level=6

modules/syncthing.nix

@@ -114,6 +114,11 @@ in
     };
   };
 
+  # Override the launchd agent to add RunAtLoad on macOS
+  launchd.agents.syncthing = lib.mkIf (pkgs.stdenv.isDarwin && config.services.syncthing.enable) {
+    config.RunAtLoad = true;
+  };
+
   # Deploy .stignore files to synced folders (only for enabled folders)
   home.file = lib.mkMerge [
     (lib.mkIf (lib.elem "Credentials" cfg.enabledFolders) {

modules/termscp.nix

@@ -3,7 +3,7 @@
 {
   # Install termscp package
   home.packages = [ pkgs.termscp ];
-  home.file.".config/termscp/config.toml".text = ''
+  home.file.${if pkgs.stdenv.isDarwin then "Library/Application Support/termscp/config.toml" else ".config/termscp/config.toml"}.text = ''
     # termscp configuration file
     # Generated by Nix - see modules/termscp.nix for customization