kitty: tab style

home/modules/kitty.nix

@@ -46,9 +46,15 @@ in
       copy_on_select          = "yes";
       strip_trailing_spaces   = "smart";
       tab_bar_style           = "powerline";
+      tab_powerline_style     = "round";
       tab_bar_align           = "left";
       tab_bar_edge            = "top";
+      tab_bar_min_tabs        = 1;
       shell_integration       = "enabled";
+      active_tab_foreground   = "#eeeeee";
+      active_tab_background   = "#d65d0e";
+      inactive_tab_foreground = "#ebdbb2";
+      inactive_tab_background = "#202020";
     };
     keybindings = {
       "ctrl+shift+n" = "new_window";

home/modules/neovim.nix

@@ -1,5 +1,4 @@
 { config, pkgs, ... }:
-
 let
   c = config.theme.colors;
 in
@@ -17,11 +16,21 @@ in
       fd
     ];
 
+    # Set mapleader before any plugin config blocks run
+    extraConfig = ''
+      let g:mapleader = "\<Space>"
+      let g:maplocalleader = "\<Space>"
+    '';
+
     plugins = with pkgs.vimPlugins; [
-      # Gruvbox theme
+      # ── Core dependencies ──────────────────────────────────────────────
+      plenary-nvim
+      nvim-web-devicons
+
+      # ── Theme ──────────────────────────────────────────────────────────
       gruvbox-nvim
 
-      # Treesitter — better syntax highlighting
+      # ── Syntax highlighting ────────────────────────────────────────────
       {
         plugin = nvim-treesitter.withAllGrammars;
         type   = "lua";
@@ -31,8 +40,101 @@ in
             indent    = { enable = true },
           })
         '';
-}
+      }
-      # File explorer
+
+      # ── Completion (must come before lspconfig) ────────────────────────
+      luasnip
+      cmp-nvim-lsp
+      cmp-buffer
+      cmp-path
+      cmp_luasnip
+      {
+        plugin = nvim-cmp;
+        type   = "lua";
+        config = ''
+          local cmp     = require("cmp")
+          local luasnip = require("luasnip")
+
+          cmp.setup({
+            snippet = {
+              expand = function(args)
+                luasnip.lsp_expand(args.body)
+              end,
+            },
+            mapping = cmp.mapping.preset.insert({
+              ["<C-Space>"] = cmp.mapping.complete(),
+              ["<C-e>"]     = cmp.mapping.abort(),
+              ["<CR>"]      = cmp.mapping.confirm({ select = false }),
+              ["<Tab>"] = cmp.mapping(function(fallback)
+                if cmp.visible() then
+                  cmp.select_next_item()
+                elseif luasnip.expand_or_jumpable() then
+                  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 luasnip.jumpable(-1) then
+                  luasnip.jump(-1)
+                else
+                  fallback()
+                end
+              end, { "i", "s" }),
+            }),
+            sources = cmp.config.sources({
+              { name = "nvim_lsp" },
+              { name = "luasnip" },
+              { name = "buffer" },
+              { name = "path" },
+            }),
+          })
+        '';
+      }
+
+      # ── LSP ────────────────────────────────────────────────────────────
+      {
+        plugin = nvim-lspconfig;
+        type   = "lua";
+        config = ''
+          local capabilities = require("cmp_nvim_lsp").default_capabilities()
+
+          vim.api.nvim_create_autocmd("LspAttach", {
+            callback = function(event)
+              local map = function(keys, func, desc)
+                vim.keymap.set("n", keys, func, { buffer = event.buf, desc = desc })
+              end
+              map("gd",         vim.lsp.buf.definition,   "Go to definition")
+              map("gr",         vim.lsp.buf.references,    "Find references")
+              map("K",          vim.lsp.buf.hover,         "Hover docs")
+              map("<leader>rn", vim.lsp.buf.rename,        "Rename symbol")
+              map("<leader>ca", vim.lsp.buf.code_action,   "Code action")
+              map("<leader>ld", vim.diagnostic.open_float, "Show diagnostics")
+              map("<leader>ln", vim.diagnostic.goto_next,  "Next diagnostic")
+              map("<leader>lp", vim.diagnostic.goto_prev,  "Prev diagnostic")
+            end,
+          })
+
+          vim.lsp.config("lua_ls", {
+            capabilities = capabilities,
+            settings = {
+              Lua = {
+                diagnostics = { globals = { "vim" } },
+              },
+            },
+          })
+          vim.lsp.enable("lua_ls")
+
+          vim.lsp.config("nil_ls", {
+            capabilities = capabilities,
+          })
+          vim.lsp.enable("nil_ls")
+        '';
+      }
+
+      # ── File explorer ──────────────────────────────────────────────────
       {
         plugin = nvim-tree-lua;
         type   = "lua";
@@ -42,42 +144,73 @@ in
         '';
       }
 
-      # Statusline
+      # ── Statusline ─────────────────────────────────────────────────────
       {
         plugin = lualine-nvim;
         type   = "lua";
         config = ''
           require("lualine").setup({
-            options = {
+            options = { theme = "gruvbox-material" },
-              theme = "gruvbox-material",
-            },
           })
         '';
       }
 
-      # Icons (needed by nvim-tree and lualine)
+      # ── Buffer tabs ────────────────────────────────────────────────────
-      nvim-web-devicons
+      {
+        plugin = bufferline-nvim;
+        type   = "lua";
+        config = ''
+          require("bufferline").setup()
+          vim.keymap.set("n", "<S-l>", "<cmd>BufferLineCycleNext<cr>", { desc = "Next buffer" })
+          vim.keymap.set("n", "<S-h>", "<cmd>BufferLineCyclePrev<cr>", { desc = "Prev buffer" })
+          vim.keymap.set("n", "<leader>x", "<cmd>bdelete<cr>",          { desc = "Close buffer" })
+        '';
+      }
 
-      # Fuzzy finder
+      # ── Fuzzy finder ───────────────────────────────────────────────────
       {
         plugin = telescope-nvim;
         type   = "lua";
         config = ''
           local builtin = require("telescope.builtin")
-          vim.keymap.set("n", "<leader>ff", builtin.find_files)
+          vim.keymap.set("n", "<leader>ff", builtin.find_files,  { desc = "Find files" })
-          vim.keymap.set("n", "<leader>fg", builtin.live_grep)
+          vim.keymap.set("n", "<leader>fg", builtin.live_grep,   { desc = "Live grep" })
-          vim.keymap.set("n", "<leader>fb", builtin.buffers)
+          vim.keymap.set("n", "<leader>fb", builtin.buffers,     { desc = "Find buffers" })
+          vim.keymap.set("n", "<leader>fr", builtin.oldfiles,    { desc = "Recent files" })
+          vim.keymap.set("n", "<leader>fs", builtin.grep_string, { desc = "Find word under cursor" })
         '';
       }
 
-      # Comment toggling
+      # ── Git ────────────────────────────────────────────────────────────
+      {
+        plugin = gitsigns-nvim;
+        type   = "lua";
+        config = ''
+          require("gitsigns").setup({
+            on_attach = function(bufnr)
+              local gs  = require("gitsigns")
+              local map = function(mode, keys, func, desc)
+                vim.keymap.set(mode, keys, func, { buffer = bufnr, desc = desc })
+              end
+              map("n", "<leader>gn", gs.next_hunk,    "Next hunk")
+              map("n", "<leader>gp", gs.prev_hunk,    "Prev hunk")
+              map("n", "<leader>gh", gs.preview_hunk, "Preview hunk")
+              map("n", "<leader>gb", gs.blame_line,   "Blame line")
+              map("n", "<leader>gs", gs.stage_hunk,   "Stage hunk")
+              map("n", "<leader>gr", gs.reset_hunk,   "Reset hunk")
+            end,
+          })
+        '';
+      }
+
+      # ── Comment toggling ───────────────────────────────────────────────
       {
         plugin = comment-nvim;
         type   = "lua";
         config = ''require("Comment").setup()'';
       }
 
-      # Show indentation guides
+      # ── Indentation guides ─────────────────────────────────────────────
       {
         plugin = indent-blankline-nvim;
         type   = "lua";
@@ -86,32 +219,21 @@ in
     ];
 
     initLua = ''
-      -- Leader key
-      vim.g.mapleader = " "
-
-      -- Colorscheme
       require("gruvbox").setup({
         contrast = "medium",
         transparent_mode = false,
       })
       vim.cmd("colorscheme gruvbox")
 
-      -- Line numbers
       vim.opt.number         = true
       vim.opt.relativenumber = true
-
-      -- Indentation
       vim.opt.tabstop        = 2
       vim.opt.shiftwidth     = 2
       vim.opt.expandtab      = true
       vim.opt.smartindent    = true
-
-      -- Search
       vim.opt.ignorecase     = true
       vim.opt.smartcase      = true
       vim.opt.hlsearch       = false
-
-      -- UI
       vim.opt.termguicolors  = true
       vim.opt.signcolumn     = "yes"
       vim.opt.cursorline     = true
@@ -119,28 +241,17 @@ in
       vim.opt.wrap           = false
       vim.opt.splitright     = true
       vim.opt.splitbelow     = true
-
-      -- System clipboard
       vim.opt.clipboard      = "unnamedplus"
 
-      -- Keymaps
       local map = vim.keymap.set
-
-      -- Better window navigation
       map("n", "<C-h>", "<C-w>h")
       map("n", "<C-j>", "<C-w>j")
       map("n", "<C-k>", "<C-w>k")
       map("n", "<C-l>", "<C-w>l")
-
-      -- Move lines up/down in visual mode
       map("v", "J", ":m '>+1<cr>gv=gv")
       map("v", "K", ":m '<-2<cr>gv=gv")
-
-      -- Keep cursor centered when scrolling
       map("n", "<C-d>", "<C-d>zz")
       map("n", "<C-u>", "<C-u>zz")
-
-      -- Save and quit
       map("n", "<leader>w", "<cmd>w<cr>")
       map("n", "<leader>q", "<cmd>q<cr>")
     '';