update nixvim config

modules/programs/neovim/plugins/conform.nix

@@ -0,0 +1,35 @@
+{ pkgs, ... }:
+{
+  programs.nixvim.extraPackages = with pkgs; [
+    stylua
+    nixfmt
+  ];
+
+  programs.nixvim.plugins = {
+    conform-nvim = {
+      enable = true;
+      settings = {
+        format_on_save = ''
+          function(bufnr)
+            -- Disable "format_on_save lsp_fallback" for lanuages that don't
+            -- have a well standardized coding style. You can add additional
+            -- lanuages here or re-enable it for the disabled ones.
+            local disable_filetypes = { c = true, cpp = true }
+            if disable_filetypes[vim.bo[bufnr].filetype] then
+              return nil
+            else
+              return {
+                timeout_ms = 500,
+                lsp_format = "fallback",
+              }
+            end
+          end
+        '';
+        formatters_by_ft = {
+          lua = [ "stylua" ];
+          nix = [ "nixfmt" ];
+        };
+      };
+    };
+  };
+}

modules/programs/neovim/plugins/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./snacks.nix
+    ./conform.nix
+  ];
+}

modules/programs/neovim/plugins/snacks.nix

@@ -0,0 +1,81 @@
+{
+  programs.nixvim.plugins = {
+    snacks = {
+      enable = true;
+      settings = {
+        bigfile.enabled = true;
+        dashboard = {
+          enabled = true;
+          preset = {
+            keys = [
+              {
+                icon = " ";
+                key = "f";
+                desc = "Find File";
+                action = ":lua Snacks.dashboard.pick('files')";
+              }
+              {
+                icon = " ";
+                key = "n";
+                desc = "New File";
+                action = ":ene | startinsert";
+              }
+              {
+                icon = " ";
+                key = "g";
+                desc = "Find Text";
+                action = ":lua Snacks.dashboard.pick('live_grep')";
+              }
+              {
+                icon = " ";
+                key = "r";
+                desc = "Recent Files";
+                action = ":lua Snacks.dashboard.pick('oldfiles')";
+              }
+              {
+                icon = " ";
+                key = "c";
+                desc = "Config";
+                action = ":lua require('telescope.builtin').find_files({ cwd = '~/nix-config/modules/programs/neovim' })";
+              }
+              {
+                icon = " ";
+                key = "s";
+                desc = "Restore Session";
+                action = ":Telescope persisted";
+              }
+              {
+                icon = " ";
+                key = "q";
+                desc = "Quit";
+                action = ":qa";
+              }
+            ];
+          };
+          sections = [
+            {
+              section = "header";
+              gap = 2;
+            }
+            {
+              section = "keys";
+              gap = 1;
+              padding = 1;
+            }
+          ];
+        };
+        explorer = {
+          enabled = true;
+          auto_close = true;
+        };
+        indent.enabled = false;
+        input.enabled = true;
+        picker.enabled = true;
+        notifier.enabled = true;
+        quickfile.enabled = true;
+        statuscolumn.enabled = true;
+        words.enabled = true;
+      };
+    };
+  };
+}