Add jj.nvim, diffview.nvim, and code-review.nvim with <leader>v (+VCS) and <leader>r (+Review) keybinding groups

modules/_neovim/default.nix

@@ -9,6 +9,9 @@
 		./plugins/harpoon.nix
 		./plugins/hunk.nix
 		./plugins/jj-diffconflicts.nix
+		./plugins/jj-nvim.nix
+		./plugins/code-review.nix
+		./plugins/diffview.nix
 		./plugins/lsp.nix
 		./plugins/mini.nix
 		./plugins/oil.nix

modules/_neovim/mappings.nix

@@ -117,16 +117,54 @@
 			action = ":Pick visit_paths<CR>";
 			options.desc = "Visit paths (cwd)";
 		}
-		# g - git
+		# v - vcs
 		{
 			mode = "n";
-			key = "<leader>gc";
+			key = "<leader>va";
+			action = ":J annotate<CR>";
+			options.desc = "Annotate (blame)";
+		}
+		{
+			mode = "n";
+			key = "<leader>vc";
 			action = ":JJDiffConflicts<CR>";
 			options.desc = "Resolve conflicts";
 		}
 		{
 			mode = "n";
-			key = "<leader>gg";
+			key = "<leader>vd";
+			action.__raw = ''
+				function()
+					require('jj.cmd').diff()
+				end
+			'';
+			options.desc = "Diff (current file)";
+		}
+		{
+			mode = "n";
+			key = "<leader>vD";
+			action = ":DiffviewOpen<CR>";
+			options.desc = "Diffview (all changes)";
+		}
+		{
+			mode = "n";
+			key = "<leader>ve";
+			action.__raw = ''
+				function()
+					require('jj.cmd').describe()
+				end
+			'';
+			options.desc = "Describe (edit message)";
+		}
+		{
+			mode = "n";
+			key = "<leader>vf";
+			action = ":J fetch<CR>";
+			options.desc = "Fetch";
+		}
+		{
+			mode = "n";
+			key = "<leader>vv";
 			action.__raw = ''
 				function()
 					require('toggleterm.terminal').Terminal:new({ cmd = 'jjui', direction = 'float' }):toggle()
@@ -134,6 +172,115 @@
 			'';
 			options.desc = "jjui";
 		}
+		{
+			mode = "n";
+			key = "<leader>vh";
+			action = ":DiffviewFileHistory %<CR>";
+			options.desc = "File history";
+		}
+		{
+			mode = "n";
+			key = "<leader>vH";
+			action = ":DiffviewFileHistory<CR>";
+			options.desc = "Branch history";
+		}
+		{
+			mode = "n";
+			key = "<leader>vl";
+			action.__raw = ''
+				function()
+					require('jj.cmd').log()
+				end
+			'';
+			options.desc = "Log";
+		}
+		{
+			mode = "n";
+			key = "<leader>vn";
+			action.__raw = ''
+				function()
+					require('jj.cmd').new()
+				end
+			'';
+			options.desc = "New change";
+		}
+		{
+			mode = "n";
+			key = "<leader>vp";
+			action = ":J git push<CR>";
+			options.desc = "Push";
+		}
+		{
+			mode = "n";
+			key = "<leader>vq";
+			action = ":DiffviewClose<CR>";
+			options.desc = "Close diffview";
+		}
+		{
+			mode = "n";
+			key = "<leader>vs";
+			action.__raw = ''
+				function()
+					require('jj.cmd').status()
+				end
+			'';
+			options.desc = "Status";
+		}
+		# r - review
+		{
+			mode = ["n" "v"];
+			key = "<leader>rc";
+			action = ":CodeReviewComment<CR>";
+			options.desc = "Add comment";
+		}
+		{
+			mode = "n";
+			key = "<leader>rd";
+			action = ":CodeReviewDeleteComment<CR>";
+			options.desc = "Delete comment";
+		}
+		{
+			mode = "n";
+			key = "<leader>rl";
+			action = ":CodeReviewList<CR>";
+			options.desc = "List comments";
+		}
+		{
+			mode = "n";
+			key = "<leader>ro";
+			action = ":CodeReviewResolve<CR>";
+			options.desc = "Resolve thread";
+		}
+		{
+			mode = "n";
+			key = "<leader>rp";
+			action = ":CodeReviewPreview<CR>";
+			options.desc = "Preview review";
+		}
+		{
+			mode = "n";
+			key = "<leader>rr";
+			action = ":CodeReviewReply<CR>";
+			options.desc = "Reply to comment";
+		}
+		{
+			mode = "n";
+			key = "<leader>rs";
+			action = ":CodeReviewShowComment<CR>";
+			options.desc = "Show comment";
+		}
+		{
+			mode = "n";
+			key = "<leader>rx";
+			action = ":CodeReviewClear<CR>";
+			options.desc = "Clear all comments";
+		}
+		{
+			mode = "n";
+			key = "<leader>ry";
+			action = ":CodeReviewCopy<CR>";
+			options.desc = "Copy review to clipboard";
+		}
 		# l - lsp/formatter
 		{
 			mode = "n";

modules/_neovim/plugins/code-review.nix

@@ -0,0 +1,37 @@
+{pkgs, ...}: let
+	code-review-nvim =
+		pkgs.vimUtils.buildVimPlugin {
+			pname = "code-review-nvim";
+			version = "unstable-2026-03-10";
+			src =
+				pkgs.fetchFromGitHub {
+					owner = "choplin";
+					repo = "code-review.nvim";
+					rev = "ed91462e20bd08c3be71efb11a4a7d00459f0b47";
+					hash = "sha256-WpbQswkUpB4Nblos8+5UE5I/PHUQOi+RQ+hj4CCdL4o=";
+				};
+			doCheck = false;
+		};
+in {
+	programs.nixvim = {
+		extraPlugins = [
+			code-review-nvim
+		];
+		extraConfigLua = ''
+			require('code-review').setup({
+				comment = {
+					storage = {
+						backend = "file",
+						file = {
+							dir = ".code-review",
+						},
+					},
+				},
+				output = {
+					format = "minimal",
+				},
+				keymaps = false,
+			})
+		'';
+	};
+}

modules/_neovim/plugins/diffview.nix

@@ -0,0 +1,26 @@
+{pkgs, ...}: {
+	programs.nixvim = {
+		extraPlugins = with pkgs.vimPlugins; [
+			diffview-nvim
+		];
+		extraConfigLua = ''
+			require('diffview').setup({
+				enhanced_diff_hl = true,
+				view = {
+					default = { layout = "diff2_horizontal" },
+					merge_tool = { layout = "diff3_mixed", disable_diagnostics = true },
+					file_history = { layout = "diff2_horizontal" },
+				},
+				default_args = {
+					DiffviewOpen = { "--imply-local" },
+				},
+				hooks = {
+					diff_buf_read = function(bufnr)
+						vim.opt_local.wrap = false
+						vim.opt_local.list = false
+					end,
+				},
+			})
+		'';
+	};
+}

modules/_neovim/plugins/jj-nvim.nix

@@ -0,0 +1,42 @@
+{pkgs, ...}: let
+	jj-nvim =
+		pkgs.vimUtils.buildVimPlugin {
+			pname = "jj-nvim";
+			version = "unstable-2026-03-10";
+			src =
+				pkgs.fetchFromGitHub {
+					owner = "NicolasGB";
+					repo = "jj.nvim";
+					rev = "bbba4051c862473637e98277f284d12b050588ca";
+					hash = "sha256-nokftWcAmmHX6UcH6O79xkLwbUpq1W8N9lf1e+NyGqE=";
+				};
+			doCheck = false;
+		};
+in {
+	programs.nixvim = {
+		extraPlugins = [
+			jj-nvim
+		];
+		extraConfigLua = ''
+			require('jj').setup({
+				diff = {
+					backend = "diffview",
+				},
+				cmd = {
+					describe = {
+						editor = { type = "buffer" },
+					},
+					log = {
+						close_on_edit = false,
+					},
+				},
+				-- Disable default keymaps — we set our own in mappings.nix
+				ui = {
+					log = {
+						keymaps = true,
+					},
+				},
+			})
+		'';
+	};
+}

modules/_neovim/plugins/mini.nix

@@ -27,11 +27,13 @@
 					{
 					  { mode = 'n', keys = '<Leader>e', desc = '+Explore/+Edit' },
 					  { mode = 'n', keys = '<Leader>f', desc = '+Find' },
-					  { mode = 'n', keys = '<Leader>g', desc = '+Git' },
+					  { mode = 'n', keys = '<Leader>v', desc = '+VCS' },
 					{ mode = 'n', keys = '<Leader>l', desc = '+LSP' },
 					{ mode = 'x', keys = '<Leader>l', desc = '+LSP' },
 					{ mode = 'n', keys = '<Leader>o', desc = '+OpenCode' },
 					{ mode = 'x', keys = '<Leader>o', desc = '+OpenCode' },
+					{ mode = 'n', keys = '<Leader>r', desc = '+Review' },
+					{ mode = 'v', keys = '<Leader>r', desc = '+Review' },
 					  require("mini.clue").gen_clues.builtin_completion(),
 					  require("mini.clue").gen_clues.g(),
 					  require("mini.clue").gen_clues.marks(),

modules/_neovim/plugins/opencode.nix

@@ -20,9 +20,99 @@ in {
 			render-markdown-nvim
 		];
 		extraConfigLua = ''
+			local opencode_markdown_conceal_query = vim.treesitter.query.parse('markdown_inline', [[
+				[
+					(emphasis_delimiter)
+					(code_span_delimiter)
+					(latex_span_delimiter)
+				] @conceal
+
+				(inline_link
+					[
+						"["
+						"]"
+						"("
+						(link_destination)
+						")"
+					] @conceal)
+
+				(full_reference_link
+					[
+						"["
+						"]"
+						(link_label)
+					] @conceal)
+
+				(collapsed_reference_link
+					[
+						"["
+						"]"
+					] @conceal)
+
+				(shortcut_link
+					[
+						"["
+						"]"
+					] @conceal)
+
+				(image
+					[
+						"!"
+						"["
+						"]"
+						"("
+						(link_destination)
+						")"
+					] @conceal)
+			]])
+
+			local function set_opencode_output_conceal()
+				if vim.bo.filetype ~= 'opencode_output' then
+					return
+				end
+
+				vim.wo.conceallevel = 3
+				vim.wo.concealcursor = 'nvic'
+			end
+
+			vim.treesitter.language.register('markdown', 'opencode_output')
+			vim.treesitter.language.register('markdown_inline', 'opencode_output')
+
+			vim.api.nvim_create_autocmd({ 'FileType', 'BufWinEnter', 'WinEnter' }, {
+				callback = set_opencode_output_conceal,
+			})
+
 			require('render-markdown').setup({
 				anti_conceal = { enabled = false },
-				file_types = { 'markdown', 'opencode_output' },
+				custom_handlers = {
+					markdown_inline = {
+						extends = true,
+						parse = function(ctx)
+							local marks = {}
+
+							for _, node in opencode_markdown_conceal_query:iter_captures(ctx.root, ctx.buf) do
+								local start_row, start_col, end_row, end_col = node:range()
+								marks[#marks + 1] = {
+									conceal = true,
+									start_row = start_row,
+									start_col = start_col,
+									opts = {
+										end_row = end_row,
+										end_col = end_col,
+										conceal = "",
+									},
+								}
+							end
+
+							return marks
+						end,
+					},
+				},
+				file_types = { 'opencode_output' },
+				win_options = {
+					conceallevel = { rendered = 3 },
+					concealcursor = { rendered = "nvic" },
+				},
 			})
 				require('opencode').setup({
 					server = {
@@ -30,7 +120,54 @@ in {
 						port = 18822,
 						auto_kill = false,
 					},
+					ui = {
+						icons = {
+							preset = 'nerdfonts',
+						},
+						questions = {
+							use_vim_ui_select = true,
+						},
+					},
 				})
+
+				do
+					local config = require('opencode.config')
+					local formatter = require('opencode.ui.formatter')
+					local format_utils = require('opencode.ui.formatter.utils')
+					local icons = require('opencode.ui.icons')
+					local util = require('opencode.util')
+
+					formatter._format_reasoning = function(output, part)
+						local text = vim.trim(part.text or "")
+						local start_line = output:get_line_count() + 1
+
+						local title = 'Reasoning'
+						local time = part.time
+						if time and type(time) == 'table' and time.start then
+							local duration_text = util.format_duration_seconds(time.start, time['end'])
+							if duration_text then
+								title = string.format('%s %s', title, duration_text)
+							end
+						end
+
+						format_utils.format_action(output, icons.get('reasoning'), title, "")
+
+						if config.ui.output.tools.show_reasoning_output and text ~= "" then
+							output:add_empty_line()
+							output:add_lines(vim.split(text, '\n'), '  ')
+							output:add_empty_line()
+						end
+
+						local end_line = output:get_line_count()
+						if end_line - start_line > 1 then
+							formatter.add_vertical_border(output, start_line, end_line, 'OpencodeToolBorder', -1, 'OpencodeReasoningText')
+						else
+							output:add_extmark(start_line - 1, {
+								line_hl_group = 'OpencodeReasoningText',
+							})
+						end
+					end
+				end
 		'';
 	};
 }

modules/_opencode/plugin/direnv.ts

@@ -0,0 +1,16 @@
+import type { Plugin } from "@opencode-ai/plugin";
+
+export const DirenvPlugin: Plugin = async ({ $ }) => {
+	return {
+		"shell.env": async (input, output) => {
+			try {
+				const exported = await $`direnv export json`
+					.cwd(input.cwd)
+					.quiet()
+					.json();
+
+				Object.assign(output.env, exported);
+			} catch {}
+		},
+	};
+};