Added Nixvim

home/neovim/alpha.nix

@@ -0,0 +1,158 @@
+{ pkgs, ... }:
+{
+  # Alpha: Start screen/dashboard for Neovim
+  # Shows a custom ASCII art header and quick action buttons on startup.
+  programs.nixvim.plugins.alpha = {
+    enable = true;
+    settings.layout = [
+      {
+        type = "padding";
+        val = 2;
+      }
+      {
+        type = "text";
+        val = [
+          "⣿⣿⣿⣿⣿⣿⣿⣿⣿⢿⣯⣿⠿⣟⣷⣯⣛⢿⣿⣿⣾⣟⣿⣿⣿⣿⣿⣿⣿⣿⣿"
+          "⣿⣿⣿⣿⣿⣿⣿⡿⣵⣿⡿⣴⣽⡟⣳⢿⢽⣽⣕⣽⢿⡿⣿⣟⣿⣿⣿⣿⣿⣿⣿"
+          "⣿⣿⣿⣷⣿⣿⢟⣫⣿⢟⢟⣾⣾⣿⣿⣞⢳⣻⢞⣎⠿⢞⣊⣿⣞⣿⣿⣿⣿⣿⢽"
+          "⣿⣿⣿⣿⣿⣏⢯⣿⣏⣏⠔⢇⣿⢢⢆⢀⢆⣧⣼⢻⢰⡧⢻⣝⣏⡸⣧⣾⣿⣿⣿"
+          "⣿⣿⣿⣿⡟⣻⣿⣿⡾⡿⡼⢸⡝⣝⡳⢢⣧⢳⣳⢷⡇⣗⢺⡺⣿⡧⣿⣿⣿⢿⢿"
+          "⣿⡿⣿⣼⡼⣿⣿⡗⡧⣧⠁⡝⣧⣳⠅⡾⠈⣎⢮⣧⣿⣿⣗⣷⣻⢷⣏⣼⢏⣺⣿"
+          "⣿⣿⣿⣻⣿⣿⣿⢧⣿⢹⠉⢷⢿⣧⣲⡏⡀⡈⢆⠳⣿⡿⢿⣿⣱⢿⢫⣷⣝⣿⣿"
+          "⣿⣿⣿⡯⡟⣿⣿⢽⣡⠟⢿⣮⠁⠙⠛⠈⡴⢿⣿⡷⣬⣽⢽⠧⣷⡏⣿⡇⣧⣽⣿"
+          "⣿⠟⢻⡧⡇⣿⡇⣇⣆⢄⡜⢃⡀⡀⡀⡀⡀⢎⣁⠁⣸⣗⣸⣿⣧⣼⡿⢹⢿⢾⣿"
+          "⣿⣷⣾⣿⢻⣿⢧⢻⣽⡀⡀⡀⡀⢄⡀⡀⡀⡀⡀⢀⣷⡸⡟⣿⣶⣻⣧⡛⡱⢝⣿"
+          "⣿⣿⣿⣿⢸⡿⢚⡜⣿⣇⡀⡀⡀⡀⡀⡀⡀⡀⠚⢁⢣⣜⡿⣿⡇⢼⣿⠨⣸⣿⣿"
+          "⣿⣄⣿⣗⢾⢻⣧⢿⣾⣿⣦⡀⡀⠑⠚⠉⡀⡀⣤⣿⢨⣿⠗⣻⢣⣿⢹⢈⣽⣿⣿"
+          "⣿⣿⣿⣿⢎⡄⢿⣞⡇⣿⠹⣿⣶⣀⡀⣀⡴⡩⢸⢏⣿⣿⣶⢻⣾⢏⡞⠡⢽⣇⣾"
+          "⣿⣿⣿⣮⣼⢬⣦⢿⣳⣌⠧⡉⠈⣇⣛⣁⣈⣼⣿⡸⠫⠛⠐⠛⠕⣙⣻⣬⣼⣿⣿"
+          "⢟⢿⣿⣿⣿⡢⣃⣪⣭⣡⣤⣶⠟⡿⠿⠿⠿⠛⢁⣿⣿⢩⠉⡀⠈⠓⡝⣿⣿⣿⣿"
+          "⣾⣿⣿⣿⣿⠞⢔⡣⡴⣾⣿⠓⣤⢧⡼⣉⠠⢤⣿⣿⠇⠃⡀⡀⡀⡀⡸⢿⣾⣿⣿"
+          "⣿⣿⣿⡿⣺⡸⢗⢠⣇⣿⣿⠊⠃⡀⠉⡀⢠⣿⣿⠟⡸⡀⡀⡀⡀⡀⣃⣬⠽⠿⣿"
+          "⣿⣿⣿⣿⡇⡏⢸⣿⠟⣽⡇⡀⡀⡀⡀⣴⣟⢭⣾⣿⡇⠎⣠⠒⠉⠈⢀⡀⢨⡋⣿"
+          "⠛⠛⠛⠋⠃⠓⠚⠛⠘⠛⠃⡀⠊⡀⠛⠛⠛⠂⠛⠛⠓⠁⠚⡀⠂⠒⠒⠐⠒⠋⠛"
+        ];
+        opts = {
+          position = "center";
+          hl = "Type";
+        };
+      }
+      {
+        type = "padding";
+        val = 2;
+      }
+      {
+        type = "group";
+        val = [
+          {
+            type = "button";
+            val = "[+] New file";
+            on_press.__raw = "function() vim.cmd[[ene]] vim.cmd[[startinsert]] end";
+            opts = {
+              keymap = [
+                "n"
+                "e"
+                ":ene <BAR> startinsert <CR>"
+                { }
+              ];
+              shortcut = "e";
+              position = "center";
+              cursor = 3;
+              width = 50;
+              align_shortcut = "right";
+              hl_shortcut = "Keyword";
+            };
+          }
+          {
+            type = "button";
+            val = "[?] Find file";
+            on_press.__raw = "function() vim.cmd[[Telescope find_files]] end";
+            opts = {
+              keymap = [
+                "n"
+                "f"
+                ":Telescope find_files <CR>"
+                { }
+              ];
+              shortcut = "f";
+              position = "center";
+              cursor = 3;
+              width = 50;
+              align_shortcut = "right";
+              hl_shortcut = "Keyword";
+            };
+          }
+          {
+            type = "button";
+            val = "[~] Recent files";
+            on_press.__raw = "function() vim.cmd[[Telescope oldfiles]] end";
+            opts = {
+              keymap = [
+                "n"
+                "r"
+                ":Telescope oldfiles <CR>"
+                { }
+              ];
+              shortcut = "r";
+              position = "center";
+              cursor = 3;
+              width = 50;
+              align_shortcut = "right";
+              hl_shortcut = "Keyword";
+            };
+          }
+          {
+            type = "button";
+            val = "[Y] Yazi";
+            on_press.__raw = "function() vim.cmd[[Yazi]] end";
+            opts = {
+              keymap = [
+                "n"
+                "y"
+                ":Yazi<CR>"
+                { }
+              ];
+              shortcut = "y";
+              position = "center";
+              cursor = 3;
+              width = 50;
+              align_shortcut = "right";
+              hl_shortcut = "Keyword";
+            };
+          }
+          {
+            type = "button";
+            val = "[X] Quit";
+            on_press.__raw = "function() vim.cmd[[qa]] end";
+            opts = {
+              keymap = [
+                "n"
+                "q"
+                ":qa<CR>"
+                { }
+              ];
+              shortcut = "q";
+              position = "center";
+              cursor = 3;
+              width = 50;
+              align_shortcut = "right";
+              hl_shortcut = "Keyword";
+            };
+          }
+        ];
+      }
+      {
+        type = "padding";
+        val = 2;
+      }
+      {
+        type = "text";
+        val = "Circuits hum in anticipation of your will.";
+        opts = {
+          position = "center";
+          hl = "Comment";
+        };
+      }
+    ];
+  };
+}

home/neovim/catppuccin.nix

@@ -0,0 +1,34 @@
+{ pkgs, ... }:
+{
+  # Catppuccin: Soothing pastel theme for Neovim
+  # Provides consistent theming across plugins with transparency support.
+  programs.nixvim = {
+    colorschemes.catppuccin = {
+      enable = true;
+      settings = {
+        flavour = "mocha";
+        transparent_background = true;
+        term_colors = true;
+        integrations = {
+          treesitter = true;
+          cmp = true;
+          gitsigns = true;
+          telescope = {
+            enabled = true;
+          };
+          notify = true;
+          mini = {
+            enabled = true;
+          };
+        };
+      };
+    };
+
+    # Custom highlight overrides
+    extraConfigLua = ''
+      local colors = require("catppuccin.palettes").get_palette("mocha")
+      vim.api.nvim_set_hl(0, "LineNr", { fg = colors.text, bg = "NONE" })
+      vim.api.nvim_set_hl(0, "CursorLineNr", { fg = colors.pink, bg = "NONE", bold = true })
+    '';
+  };
+}

home/neovim/conform.nix

@@ -0,0 +1,34 @@
+{ pkgs, ... }:
+{
+  # Conform: Code formatter that runs external formatting tools
+  # Automatically formats code on save for consistent style.
+  programs.nixvim = {
+    plugins.conform-nvim = {
+      enable = true;
+
+      settings = {
+        formatters_by_ft = {
+          lua = [ "stylua" ];
+          nix = [ "nixfmt" ];
+          python = [ "black" ];
+          rust = [ "rustfmt" ];
+          rasi = [ "prettierd" ];
+        };
+
+        format_on_save = {
+          timeout_ms = 500;
+          lsp_fallback = true;
+        };
+      };
+    };
+
+    # Install formatters
+    extraPackages = with pkgs; [
+      stylua
+      nixfmt-classic
+      black
+      rustfmt
+      prettierd
+    ];
+  };
+}

home/neovim/default.nix

@@ -1,13 +1,91 @@
-{...}:
+{ ... }:
 {
-imports = [
-./treesitter.nix
-];
+  imports = [
+    ./alpha.nix
+    ./treesitter.nix
+    ./lint.nix
+    ./lsp.nix
+    ./conform.nix
+    ./lualine.nix
+    ./yazi.nix
+    ./toggleterm.nix
+    ./telescope.nix
+    ./catppuccin.nix
+  ];
 
+  programs.nixvim = {
+    enable = true;
+    defaultEditor = true;
 
-programs.nixvim = {
-enable = true;
-defaultEditor = true;
-};
+    # Leader key
+    globals.mapleader = " ";
+
+    plugins.web-devicons.enable = true;
+
+    opts = {
+number = true; # Show line numbers
+cursorline = true; # Highlight current line
+showmode = true; # already in statusline
+hlsearch = true; # Highlight search result
+incsearch = true; # Incremental Search
+tabstop = 4; 
+termguicolors = true; # Enable 24-bit colormode
+    };
+
+    # Clipboard keymaps - yank to system clipboard
+    keymaps = [
+      # Yank operations
+      {
+        mode = "n";
+        key = "y";
+        action = "\"+y";
+        options.desc = "Yank to clipboard";
+      }
+      {
+        mode = "v";
+        key = "y";
+        action = "\"+y";
+        options.desc = "Yank to clipboard";
+      }
+      {
+        mode = "n";
+        key = "Y";
+        action = "\"+Y";
+        options.desc = "Yank line to clipboard";
+      }
+      # Delete operations
+      {
+        mode = "n";
+        key = "d";
+        action = "\"+d";
+        options.desc = "Delete to clipboard";
+      }
+      {
+        mode = "v";
+        key = "d";
+        action = "\"+d";
+        options.desc = "Delete to clipboard";
+      }
+      {
+        mode = "n";
+        key = "D";
+        action = "\"+D";
+        options.desc = "Delete line to clipboard";
+      }
+      # Paste operations
+      {
+        mode = "n";
+        key = "p";
+        action = "\"+p";
+        options.desc = "Paste from clipboard";
+      }
+      {
+        mode = "v";
+        key = "p";
+        action = "\"+p";
+        options.desc = "Paste from clipboard";
+      }
+    ];
+  };
 
 }

home/neovim/lint.nix

@@ -0,0 +1,42 @@
+{ pkgs, ... }:
+{
+  # nvim-lint: Asynchronous linter that runs external linting tools
+  # to find errors and style issues without blocking the editor.
+  # Runs automatically after saving files.
+  programs.nixvim = {
+    plugins.lint = {
+      enable = true;
+
+      # Configure linters for each filetype
+      lintersByFt = {
+        lua = [ "luacheck" ];
+        nix = [ "statix" ]; # Nix static analyzer
+        python = [ "ruff" ];
+        javascript = [ "eslint" ];
+        rust = [ "clippy" ];
+        # rasi has no common linter
+      };
+
+      # Trigger linting after saving a file
+      autoCmd = {
+        event = [ "BufWritePost" ];
+        callback = {
+          __raw = ''
+            function()
+              require('lint').try_lint()
+            end
+          '';
+        };
+      };
+    };
+
+    # Install linter binaries
+    extraPackages = with pkgs; [
+      lua54Packages.luacheck
+      statix
+      ruff
+      nodePackages.eslint
+      clippy
+    ];
+  };
+}

home/neovim/lsp.nix

@@ -0,0 +1,91 @@
+{ pkgs, ... }:
+{
+  # LSP configuration: Language Server Protocol provides IDE features
+  # like autocomplete, go-to-definition, diagnostics, and more.
+  programs.nixvim = {
+    plugins = {
+      # LSP configuration
+      lsp = {
+        enable = true;
+
+        # Language servers for each language
+        servers = {
+          lua_ls = {
+            enable = true;
+            settings = {
+              Lua = {
+                runtime.version = "LuaJIT";
+                diagnostics.globals = [ "vim" ];
+                workspace.library = [ ]; # Populated by nixvim
+                telemetry.enable = false;
+              };
+            };
+          };
+
+          nil_ls.enable = true; # Nix language server
+          rust_analyzer = {
+            enable = true; # Rust language server
+            installCargo = true;
+            installRustc = true;
+          };
+          pylsp.enable = true; # Python language server
+        };
+
+        # Keymaps for LSP actions
+        keymaps = {
+          diagnostic = {
+            "<leader>e" = "open_float";
+            "[d" = "goto_prev";
+            "]d" = "goto_next";
+          };
+          lspBuf = {
+            "gd" = "definition";
+            "K" = "hover";
+            "<leader>rn" = "rename";
+            "<leader>ca" = "code_action";
+          };
+        };
+      };
+
+      # Autocompletion
+      cmp = {
+        enable = true;
+        autoEnableSources = true;
+
+        settings = {
+          snippet.expand = ''
+            function(args)
+              require('luasnip').lsp_expand(args.body)
+            end
+          '';
+
+          mapping = {
+            "<C-b>" = "cmp.mapping.scroll_docs(-4)";
+            "<C-f>" = "cmp.mapping.scroll_docs(4)";
+            "<C-Space>" = "cmp.mapping.complete()";
+            "<C-e>" = "cmp.mapping.abort()";
+            "<CR>" = "cmp.mapping.confirm({ select = true })";
+          };
+
+          sources = [
+            { name = "nvim_lsp"; }
+            { name = "luasnip"; }
+            { name = "buffer"; }
+            { name = "path"; }
+          ];
+        };
+      };
+
+      # Snippet engine (required for completion)
+      luasnip.enable = true;
+    };
+
+    # Install LSP servers
+    extraPackages = with pkgs; [
+      lua-language-server
+      nil
+      rust-analyzer
+      python311Packages.python-lsp-server
+    ];
+  };
+}

home/neovim/lualine.nix

@@ -0,0 +1,22 @@
+{ pkgs, ... }:
+{
+  # Lualine: Fast and customizable statusline for Neovim
+  # Displays file info, git status, diagnostics, and mode at the bottom of the editor.
+  programs.nixvim.plugins.lualine = {
+    enable = true;
+
+    settings = {
+      options = {
+        theme = "catppuccin";
+        component_separators = {
+          left = "|";
+          right = "|";
+        };
+        section_separators = {
+          left = "";
+          right = "";
+        };
+      };
+    };
+  };
+}

home/neovim/telescope.nix

@@ -0,0 +1,27 @@
+{ pkgs, ... }:
+{
+  # Telescope: Fuzzy finder for files, buffers, grep, and more
+  # Provides fast search and navigation throughout your project.
+  programs.nixvim.plugins.telescope = {
+    enable = true;
+
+    keymaps = {
+      "<leader>ff" = {
+        action = "find_files";
+        options.desc = "Telescope find files";
+      };
+      "<leader>fg" = {
+        action = "live_grep";
+        options.desc = "Telescope live grep";
+      };
+      "<leader>fb" = {
+        action = "buffers";
+        options.desc = "Telescope buffers";
+      };
+      "<leader>fh" = {
+        action = "help_tags";
+        options.desc = "Telescope help tags";
+      };
+    };
+  };
+}

home/neovim/toggleterm.nix

@@ -0,0 +1,64 @@
+{ pkgs, ... }:
+{
+  # ToggleTerm: Terminal emulator inside Neovim
+  # Provides floating, horizontal, and vertical terminal windows.
+  programs.nixvim.plugins.toggleterm = {
+    enable = true;
+
+    settings = {
+      size = 20;
+      open_mapping = "[[<c-\\>]]";
+      direction = "float";
+      float_opts = {
+        border = "single";
+        width = 200;
+        height = 40;
+      };
+    };
+  };
+
+  programs.nixvim.keymaps = [
+    {
+      mode = "n";
+      key = "<leader>h";
+      action.__raw = ''
+        function()
+          require("toggleterm").toggle(1, 10, vim.loop.cwd(), "horizontal")
+        end
+      '';
+      options.desc = "Toggle terminal (horizontal)";
+    }
+    {
+      mode = "n";
+      key = "<leader>v";
+      action.__raw = ''
+        function()
+          require("toggleterm").toggle(2, 60, vim.loop.cwd(), "vertical")
+        end
+      '';
+      options.desc = "Toggle terminal (vertical)";
+    }
+    {
+      mode = "n";
+      key = "<leader>ft";
+      action.__raw = ''
+        function()
+          require("toggleterm").toggle(3, 20, vim.loop.cwd(), "float")
+        end
+      '';
+      options.desc = "Toggle terminal (float)";
+    }
+    {
+      mode = "t";
+      key = "<C-t>";
+      action = "<Cmd>ToggleTerm<CR>";
+      options.desc = "Toggle terminal";
+    }
+    {
+      mode = "t";
+      key = "<C-v>";
+      action = "<C-\\><C-n>v";
+      options.desc = "Exit terminal and enter visual mode";
+    }
+  ];
+}

home/neovim/treesitter.nix

@@ -0,0 +1,24 @@
+{ pkgs, ... }:
+{
+
+  # Install language parsers declaratively
+  # Syntax Highlighting
+  programs.nixvim.plugins.treesitter = {
+    enable = true;
+    grammarPackages = with pkgs.vimPlugins.nvim-treesitter.builtGrammars; [
+      lua
+      nix
+      python
+      javascript
+      rust
+      rasi
+    ];
+
+    settings = {
+      highlight = {
+        enable = true;
+        additional_vim_regex_highlighting = false;
+      };
+    };
+  };
+}

home/neovim/tresitter.nix

@@ -1,5 +0,0 @@
-{
-programs.nixvim.plugins.treesitter = {
-enable = true;
-};
-}

home/neovim/yazi.nix

@@ -0,0 +1,37 @@
+{ pkgs, ... }:
+{
+  programs.nixvim = {
+    yazi = {
+      enable = true;
+      settings = {
+        open_for_directories = true;
+      };
+    };
+
+    keymaps = [
+      {
+        mode = "n";
+        key = "<leader>fy";
+        action.__raw = ''
+          function()
+            require('yazi').yazi(nil, vim.loop.cwd())
+          end
+        '';
+        options.desc = "Open Yazi file manager";
+      }
+      {
+        mode = "n";
+        key = "<leader>fd";
+        action.__raw = ''
+          function()
+            require('yazi').yazi(nil, vim.fn.expand("%:p:h"))
+          end
+        '';
+        options.desc = "Open Yazi in current file directory";
+      }
+    ];
+
+    extraPackages = with pkgs; [ yazi ];
+  };
+
+}