diff --git a/README.md b/README.md
index 996ee27..f0a04a8 100644
--- a/README.md
+++ b/README.md
@@ -9,12 +9,18 @@ syntax highlighting.
 
 ## Features
 
-- Treesitter syntax highlighting in fugitive diffs and commit views
-- Character-level intra-line diff highlighting
-- `:Gdiff` unified diff against any revision
-- Background-only diff colors for `&diff` buffers
-- Inline merge conflict detection, highlighting, and resolution
-- Vim syntax fallback, context padding, configurable blend/debounce
+- Treesitter syntax highlighting in `:Git` diffs and commit views
+- Diff header highlighting (`diff --git`, `index`, `---`, `+++`)
+- `:Gdiffsplit` / `:Gvdiffsplit` syntax through diff backgrounds
+- `:Gdiff` unified diff against any git revision with syntax highlighting
+- Fugitive status buffer keymaps (`du`/`dU`) for unified diffs
+- Background-only diff colors for any `&diff` buffer (`:diffthis`, `vimdiff`)
+- Vim syntax fallback for languages without a treesitter parser
+- Hunk header context highlighting (`@@ ... @@ function foo()`)
+- Character-level (intra-line) diff highlighting for changed characters
+- Inline merge conflict detection, highlighting, and resolution keymaps
+- Configurable debouncing, max lines, diff prefix concealment, blend alpha, and
+  highlight overrides
 
 ## Requirements
 
diff --git a/doc/diffs.nvim.txt b/doc/diffs.nvim.txt
index f199d31..7663150 100644
--- a/doc/diffs.nvim.txt
+++ b/doc/diffs.nvim.txt
@@ -85,7 +85,6 @@ Configuration is done via `vim.g.diffs`. Set this before the plugin loads:
         enabled = true,
         disable_diagnostics = true,
         show_virtual_text = true,
-        show_actions = false,
         keymaps = {
           ours = 'doo',
           theirs = 'dot',
@@ -316,32 +315,6 @@ Example configuration: >lua
     vim.keymap.set('n', '[x', '<Plug>(diffs-conflict-prev)')
 <
 
-                                                 *<Plug>(diffs-merge-ours)*
-<Plug>(diffs-merge-ours)
-                        Accept ours in a merge diff view. Resolves the
-                        conflict in the working file with ours content.
-
-                                               *<Plug>(diffs-merge-theirs)*
-<Plug>(diffs-merge-theirs)
-                        Accept theirs in a merge diff view.
-
-                                                 *<Plug>(diffs-merge-both)*
-<Plug>(diffs-merge-both)
-                        Accept both (ours then theirs) in a merge diff view.
-
-                                                 *<Plug>(diffs-merge-none)*
-<Plug>(diffs-merge-none)
-                        Reject both in a merge diff view.
-
-                                                 *<Plug>(diffs-merge-next)*
-<Plug>(diffs-merge-next)
-                        Jump to next unresolved conflict hunk in merge diff.
-
-                                                 *<Plug>(diffs-merge-prev)*
-<Plug>(diffs-merge-prev)
-                        Jump to previous unresolved conflict hunk in merge
-                        diff.
-
 Diff buffer mappings: ~
                                                               *diffs-q*
     q               Close the diff window. Available in all `diffs://`
@@ -372,7 +345,6 @@ Behavior by file status: ~
     A           Staged      (empty)         index           file as all-added
     D           Staged      HEAD            (empty)         file as all-removed
     R           Staged      HEAD:oldname    index:newname   content diff
-    U           Unstaged    :2: (ours)      :3: (theirs)    merge diff
     ?           Untracked   (empty)         working tree    file as all-added
 
 On section headers, the keymap runs `git diff` (or `git diff --cached` for
@@ -417,7 +389,6 @@ Configuration: ~
         enabled = true,
         disable_diagnostics = true,
         show_virtual_text = true,
-        show_actions = false,
         keymaps = {
           ours = 'doo',
           theirs = 'dot',
@@ -444,32 +415,9 @@ Configuration: ~
                              diagnostics alone.
 
         {show_virtual_text}  (boolean, default: true)
-                             Show `(current)` and `(incoming)` labels at
-                             the end of `<<<<<<<` and `>>>>>>>` marker
-                             lines. Also controls hunk hints in merge
-                             diff views.
-
-        {format_virtual_text} (function|nil, default: nil)
-                             Custom formatter for virtual text labels.
-                             Receives `(side, keymap)` where `side` is
-                             `"ours"` or `"theirs"` and `keymap` is the
-                             configured keymap string or `false`. Return
-                             a string (label text without parens) or
-                             `nil` to hide the label. Example: >lua
-                                 format_virtual_text = function(side, keymap)
-                                   if keymap then
-                                     return side .. ' [' .. keymap .. ']'
-                                   end
-                                   return side
-                                 end
-<
-
-        {show_actions}       (boolean, default: false)
-                             Show a codelens-style action line above each
-                             `<<<<<<<` marker listing available resolution
-                             keymaps. Renders as virtual lines using the
-                             `DiffsConflictActions` highlight group.
-                             Only keymaps that are not `false` appear.
+                             Show virtual text labels (" current" and
+                             " incoming") at the end of `<<<<<<<` and
+                             `>>>>>>>` marker lines.
 
         {keymaps}            (table, default: see above)
                              Buffer-local keymaps for conflict resolution
@@ -510,31 +458,6 @@ User events: ~
                                 })
 <
 
-==============================================================================
-MERGE DIFF RESOLUTION                                       *diffs-merge*
-
-When pressing `du`/`dU` on an unmerged (`U`) file in the fugitive status
-buffer, diffs.nvim opens a unified diff of ours (`git show :2:path`) vs
-theirs (`git show :3:path`) with full treesitter and intra-line highlighting.
-
-The same conflict resolution keymaps (`doo`/`dot`/`dob`/`don`/`]x`/`[x`)
-are available on the diff buffer. They resolve conflicts in the working
-file by matching diff hunks to conflict markers:
-
-- `doo` replaces the conflict region with ours content
-- `dot` replaces the conflict region with theirs content
-- `dob` replaces with both (ours then theirs)
-- `don` removes the conflict region entirely
-- `]x`/`[x` navigate between unresolved conflict hunks
-
-Resolved hunks are marked with `(resolved)` virtual text. Hunks that
-correspond to auto-merged content (no conflict markers) show an
-informational notification and are left unchanged.
-
-The working file buffer is modified in place; save it when ready.
-Phase 1 inline conflict highlights (see |diffs-conflict|) are refreshed
-automatically after each resolution.
-
 ==============================================================================
 API                                                                *diffs-api*
 
@@ -712,10 +635,6 @@ Conflict highlights: ~
                                                       *DiffsConflictBaseNr*
     DiffsConflictBaseNr Line number for base content lines (diff3).
 
-                                                    *DiffsConflictActions*
-    DiffsConflictActions Dimmed foreground (no bold) for the codelens-style
-                        action line shown when `show_actions` is true.
-
 Diff mode window highlights: ~
 These are used for |winhighlight| remapping in `&diff` windows.
 
diff --git a/lua/diffs/commands.lua b/lua/diffs/commands.lua
index 01f1d3a..dc6cfe2 100644
--- a/lua/diffs/commands.lua
+++ b/lua/diffs/commands.lua
@@ -36,24 +36,6 @@ function M.find_hunk_line(diff_lines, hunk_position)
   return nil
 end
 
----@param lines string[]
----@return string[]
-function M.filter_combined_diffs(lines)
-  local result = {}
-  local skip = false
-  for _, line in ipairs(lines) do
-    if line:match('^diff %-%-cc ') then
-      skip = true
-    elseif line:match('^diff %-%-git ') then
-      skip = false
-    end
-    if not skip then
-      table.insert(result, line)
-    end
-  end
-  return result
-end
-
 ---@param old_lines string[]
 ---@param new_lines string[]
 ---@param old_name string
@@ -87,33 +69,6 @@ local function generate_unified_diff(old_lines, new_lines, old_name, new_name)
   return result
 end
 
----@param raw_lines string[]
----@param repo_root string
----@return string[]
-local function replace_combined_diffs(raw_lines, repo_root)
-  local unmerged_files = {}
-  for _, line in ipairs(raw_lines) do
-    local cc_file = line:match('^diff %-%-cc (.+)$')
-    if cc_file then
-      table.insert(unmerged_files, cc_file)
-    end
-  end
-
-  local result = M.filter_combined_diffs(raw_lines)
-
-  for _, filename in ipairs(unmerged_files) do
-    local filepath = repo_root .. '/' .. filename
-    local old_lines = git.get_file_content(':2', filepath) or {}
-    local new_lines = git.get_file_content(':3', filepath) or {}
-    local diff_lines = generate_unified_diff(old_lines, new_lines, filename, filename)
-    for _, dl in ipairs(diff_lines) do
-      table.insert(result, dl)
-    end
-  end
-
-  return result
-end
-
 ---@param revision? string
 ---@param vertical? boolean
 function M.gdiff(revision, vertical)
@@ -183,7 +138,6 @@ end
 ---@field vertical? boolean
 ---@field staged? boolean
 ---@field untracked? boolean
----@field unmerged? boolean
 ---@field old_filepath? string
 ---@field hunk_position? { hunk_header: string, offset: integer }
 
@@ -203,17 +157,7 @@ function M.gdiff_file(filepath, opts)
   local old_lines, new_lines, err
   local diff_label
 
-  if opts.unmerged then
-    old_lines = git.get_file_content(':2', filepath)
-    if not old_lines then
-      old_lines = {}
-    end
-    new_lines = git.get_file_content(':3', filepath)
-    if not new_lines then
-      new_lines = {}
-    end
-    diff_label = 'unmerged'
-  elseif opts.untracked then
+  if opts.untracked then
     old_lines = {}
     new_lines, err = git.get_working_content(filepath)
     if not new_lines then
@@ -292,14 +236,6 @@ function M.gdiff_file(filepath, opts)
   end
 
   M.setup_diff_buf(diff_buf)
-
-  if diff_label == 'unmerged' then
-    vim.api.nvim_buf_set_var(diff_buf, 'diffs_unmerged', true)
-    vim.api.nvim_buf_set_var(diff_buf, 'diffs_working_path', filepath)
-    local conflict_config = require('diffs').get_conflict_config()
-    require('diffs.merge').setup_keymaps(diff_buf, conflict_config)
-  end
-
   dbg('opened diff buffer %d for %s (%s)', diff_buf, rel_path, diff_label)
 
   vim.schedule(function()
@@ -327,8 +263,6 @@ function M.gdiff_section(repo_root, opts)
     return
   end
 
-  result = replace_combined_diffs(result, repo_root)
-
   if #result == 0 then
     vim.notify('[diffs.nvim]: no changes in section', vim.log.levels.INFO)
     return
@@ -391,8 +325,6 @@ function M.read_buffer(bufnr)
     if vim.v.shell_error ~= 0 then
       diff_lines = {}
     end
-
-    diff_lines = replace_combined_diffs(diff_lines, repo_root)
   else
     local abs_path = repo_root .. '/' .. path
 
@@ -402,10 +334,7 @@ function M.read_buffer(bufnr)
 
     local old_lines, new_lines
 
-    if label == 'unmerged' then
-      old_lines = git.get_file_content(':2', abs_path) or {}
-      new_lines = git.get_file_content(':3', abs_path) or {}
-    elseif label == 'untracked' then
+    if label == 'untracked' then
       old_lines = {}
       new_lines = git.get_working_content(abs_path) or {}
     elseif label == 'staged' then
diff --git a/lua/diffs/conflict.lua b/lua/diffs/conflict.lua
index ce3618d..9e62a15 100644
--- a/lua/diffs/conflict.lua
+++ b/lua/diffs/conflict.lua
@@ -92,17 +92,6 @@ local function parse_buffer(bufnr)
   return M.parse(lines)
 end
 
----@param side string
----@param config diffs.ConflictConfig
----@return string?
-local function get_virtual_text_label(side, config)
-  if config.format_virtual_text then
-    local keymap = side == 'ours' and config.keymaps.ours or config.keymaps.theirs
-    return config.format_virtual_text(side, keymap)
-  end
-  return side == 'ours' and 'current' or 'incoming'
-end
-
 ---@param bufnr integer
 ---@param regions diffs.ConflictRegion[]
 ---@param config diffs.ConflictConfig
@@ -118,37 +107,10 @@ local function apply_highlights(bufnr, regions, config)
     })
 
     if config.show_virtual_text then
-      local ours_label = get_virtual_text_label('ours', config)
-      if ours_label then
-        pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, region.marker_ours, 0, {
-          virt_text = { { ' (' .. ours_label .. ')', 'DiffsConflictMarker' } },
-          virt_text_pos = 'eol',
-        })
-      end
-    end
-
-    if config.show_actions then
-      local parts = {}
-      local actions = {
-        { 'Current', config.keymaps.ours },
-        { 'Incoming', config.keymaps.theirs },
-        { 'Both', config.keymaps.both },
-        { 'None', config.keymaps.none },
-      }
-      for _, action in ipairs(actions) do
-        if action[2] then
-          if #parts > 0 then
-            table.insert(parts, { ' \226\148\130 ', 'DiffsConflictActions' })
-          end
-          table.insert(parts, { ('%s (%s)'):format(action[1], action[2]), 'DiffsConflictActions' })
-        end
-      end
-      if #parts > 0 then
-        pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, region.marker_ours, 0, {
-          virt_lines = { parts },
-          virt_lines_above = true,
-        })
-      end
+      pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, region.marker_ours, 0, {
+        virt_text = { { ' (current)', 'DiffsConflictMarker' } },
+        virt_text_pos = 'eol',
+      })
     end
 
     for line = region.ours_start, region.ours_end - 1 do
@@ -214,13 +176,10 @@ local function apply_highlights(bufnr, regions, config)
     })
 
     if config.show_virtual_text then
-      local theirs_label = get_virtual_text_label('theirs', config)
-      if theirs_label then
-        pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, region.marker_theirs, 0, {
-          virt_text = { { ' (' .. theirs_label .. ')', 'DiffsConflictMarker' } },
-          virt_text_pos = 'eol',
-        })
-      end
+      pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, region.marker_theirs, 0, {
+        virt_text = { { ' (incoming)', 'DiffsConflictMarker' } },
+        virt_text_pos = 'eol',
+      })
     end
   end
 end
@@ -240,7 +199,7 @@ end
 ---@param bufnr integer
 ---@param region diffs.ConflictRegion
 ---@param replacement string[]
-function M.replace_region(bufnr, region, replacement)
+local function replace_region(bufnr, region, replacement)
   vim.api.nvim_buf_set_lines(
     bufnr,
     region.marker_ours,
@@ -252,7 +211,7 @@ end
 
 ---@param bufnr integer
 ---@param config diffs.ConflictConfig
-function M.refresh(bufnr, config)
+local function refresh(bufnr, config)
   local regions = parse_buffer(bufnr)
   if #regions == 0 then
     vim.api.nvim_buf_clear_namespace(bufnr, ns, 0, -1)
@@ -285,8 +244,8 @@ function M.resolve_ours(bufnr, config)
     return
   end
   local lines = vim.api.nvim_buf_get_lines(bufnr, region.ours_start, region.ours_end, false)
-  M.replace_region(bufnr, region, lines)
-  M.refresh(bufnr, config)
+  replace_region(bufnr, region, lines)
+  refresh(bufnr, config)
 end
 
 ---@param bufnr integer
@@ -303,8 +262,8 @@ function M.resolve_theirs(bufnr, config)
     return
   end
   local lines = vim.api.nvim_buf_get_lines(bufnr, region.theirs_start, region.theirs_end, false)
-  M.replace_region(bufnr, region, lines)
-  M.refresh(bufnr, config)
+  replace_region(bufnr, region, lines)
+  refresh(bufnr, config)
 end
 
 ---@param bufnr integer
@@ -329,8 +288,8 @@ function M.resolve_both(bufnr, config)
   for _, l in ipairs(theirs) do
     table.insert(combined, l)
   end
-  M.replace_region(bufnr, region, combined)
-  M.refresh(bufnr, config)
+  replace_region(bufnr, region, combined)
+  refresh(bufnr, config)
 end
 
 ---@param bufnr integer
@@ -346,8 +305,8 @@ function M.resolve_none(bufnr, config)
   if not region then
     return
   end
-  M.replace_region(bufnr, region, {})
-  M.refresh(bufnr, config)
+  replace_region(bufnr, region, {})
+  refresh(bufnr, config)
 end
 
 ---@param bufnr integer
@@ -458,7 +417,7 @@ function M.attach(bufnr, config)
       if not attached_buffers[bufnr] then
         return true
       end
-      M.refresh(bufnr, config)
+      refresh(bufnr, config)
     end,
   })
 
diff --git a/lua/diffs/fugitive.lua b/lua/diffs/fugitive.lua
index b11985c..a588a22 100644
--- a/lua/diffs/fugitive.lua
+++ b/lua/diffs/fugitive.lua
@@ -27,19 +27,19 @@ function M.get_section_at_line(bufnr, lnum)
 end
 
 ---@param line string
----@return string?, string?, string?
+---@return string?, string?
 local function parse_file_line(line)
   local old, new = line:match('^R%d*%s+(.-)%s+->%s+(.+)$')
   if old and new then
-    return vim.trim(new), vim.trim(old), 'R'
+    return vim.trim(new), vim.trim(old)
   end
 
-  local status, filename = line:match('^([MADRCU?])[MADRCU%s]*%s+(.+)$')
-  if status and filename then
-    return vim.trim(filename), nil, status
+  local filename = line:match('^[MADRCU?][MADRCU%s]*%s+(.+)$')
+  if filename then
+    return vim.trim(filename), nil
   end
 
-  return nil, nil, nil
+  return nil, nil
 end
 
 ---@param line string
@@ -57,34 +57,34 @@ end
 
 ---@param bufnr integer
 ---@param lnum integer
----@return string?, diffs.FugitiveSection, boolean, string?, string?
+---@return string?, diffs.FugitiveSection, boolean, string?
 function M.get_file_at_line(bufnr, lnum)
   local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
   local current_line = lines[lnum]
 
   if not current_line then
-    return nil, nil, false, nil, nil
+    return nil, nil, false, nil
   end
 
   local section_header = parse_section_header(current_line)
   if section_header then
-    return nil, section_header, true, nil, nil
+    return nil, section_header, true, nil
   end
 
-  local filename, old_filename, status = parse_file_line(current_line)
+  local filename, old_filename = parse_file_line(current_line)
   if filename then
     local section = M.get_section_at_line(bufnr, lnum)
-    return filename, section, false, old_filename, status
+    return filename, section, false, old_filename
   end
 
   local prefix = current_line:sub(1, 1)
   if prefix == '+' or prefix == '-' or prefix == ' ' then
     for i = lnum - 1, 1, -1 do
       local prev_line = lines[i]
-      filename, old_filename, status = parse_file_line(prev_line)
+      filename, old_filename = parse_file_line(prev_line)
       if filename then
         local section = M.get_section_at_line(bufnr, i)
-        return filename, section, false, old_filename, status
+        return filename, section, false, old_filename
       end
       if prev_line:match('^%w+ %(') or prev_line == '' then
         break
@@ -92,7 +92,7 @@ function M.get_file_at_line(bufnr, lnum)
     end
   end
 
-  return nil, nil, false, nil, nil
+  return nil, nil, false, nil
 end
 
 ---@class diffs.HunkPosition
@@ -150,7 +150,7 @@ function M.diff_file_under_cursor(vertical)
   local bufnr = vim.api.nvim_get_current_buf()
   local lnum = vim.api.nvim_win_get_cursor(0)[1]
 
-  local filename, section, is_header, old_filename, status = M.get_file_at_line(bufnr, lnum)
+  local filename, section, is_header, old_filename = M.get_file_at_line(bufnr, lnum)
 
   local repo_root = get_repo_root_from_fugitive(bufnr)
   if not repo_root then
@@ -192,7 +192,6 @@ function M.diff_file_under_cursor(vertical)
     vertical = vertical,
     staged = section == 'staged',
     untracked = section == 'untracked',
-    unmerged = status == 'U',
     old_filepath = old_filepath,
     hunk_position = hunk_position,
   })
diff --git a/lua/diffs/git.lua b/lua/diffs/git.lua
index 1aa6328..7695283 100644
--- a/lua/diffs/git.lua
+++ b/lua/diffs/git.lua
@@ -1,19 +1,13 @@
 local M = {}
 
-local repo_root_cache = {}
-
 ---@param filepath string
 ---@return string?
 function M.get_repo_root(filepath)
   local dir = vim.fn.fnamemodify(filepath, ':h')
-  if repo_root_cache[dir] ~= nil then
-    return repo_root_cache[dir]
-  end
   local result = vim.fn.systemlist({ 'git', '-C', dir, 'rev-parse', '--show-toplevel' })
   if vim.v.shell_error ~= 0 then
     return nil
   end
-  repo_root_cache[dir] = result[1]
   return result[1]
 end
 
diff --git a/lua/diffs/highlight.lua b/lua/diffs/highlight.lua
index 6cdfe92..306b0e5 100644
--- a/lua/diffs/highlight.lua
+++ b/lua/diffs/highlight.lua
@@ -238,7 +238,7 @@ local function highlight_vim_syntax(bufnr, ns, hunk, code_lines, covered_lines,
 
   local spans = {}
 
-  pcall(vim.api.nvim_buf_call, scratch, function()
+  vim.api.nvim_buf_call(scratch, function()
     vim.cmd('setlocal syntax=' .. ft)
     vim.cmd('redraw')
 
@@ -256,7 +256,7 @@ local function highlight_vim_syntax(bufnr, ns, hunk, code_lines, covered_lines,
     spans = M.coalesce_syntax_spans(query_fn, code_lines)
   end)
 
-  pcall(vim.api.nvim_buf_delete, scratch, { force = true })
+  vim.api.nvim_buf_delete(scratch, { force = true })
 
   local hunk_line_count = #hunk.lines
   local extmark_count = 0
diff --git a/lua/diffs/init.lua b/lua/diffs/init.lua
index 85dc879..cdc29d1 100644
--- a/lua/diffs/init.lua
+++ b/lua/diffs/init.lua
@@ -41,8 +41,6 @@
 ---@field enabled boolean
 ---@field disable_diagnostics boolean
 ---@field show_virtual_text boolean
----@field format_virtual_text? fun(side: string, keymap: string|false): string?
----@field show_actions boolean
 ---@field keymaps diffs.ConflictKeymaps
 
 ---@class diffs.Config
@@ -130,7 +128,6 @@ local default_config = {
     enabled = true,
     disable_diagnostics = true,
     show_virtual_text = true,
-    show_actions = false,
     keymaps = {
       ours = 'doo',
       theirs = 'dot',
@@ -203,9 +200,7 @@ local function create_debounced_highlight(bufnr)
           timer = nil
           t:close()
         end
-        if vim.api.nvim_buf_is_valid(bufnr) then
-          highlight_buffer(bufnr)
-        end
+        highlight_buffer(bufnr)
       end)
     )
   end
@@ -279,7 +274,6 @@ local function compute_highlight_groups()
   vim.api.nvim_set_hl(0, 'DiffsConflictTheirs', { default = true, bg = blended_theirs })
   vim.api.nvim_set_hl(0, 'DiffsConflictBase', { default = true, bg = blended_base })
   vim.api.nvim_set_hl(0, 'DiffsConflictMarker', { default = true, fg = 0x808080, bold = true })
-  vim.api.nvim_set_hl(0, 'DiffsConflictActions', { default = true, fg = 0x808080 })
   vim.api.nvim_set_hl(
     0,
     'DiffsConflictOursNr',
@@ -394,8 +388,6 @@ local function init()
       ['conflict.enabled'] = { opts.conflict.enabled, 'boolean', true },
       ['conflict.disable_diagnostics'] = { opts.conflict.disable_diagnostics, 'boolean', true },
       ['conflict.show_virtual_text'] = { opts.conflict.show_virtual_text, 'boolean', true },
-      ['conflict.format_virtual_text'] = { opts.conflict.format_virtual_text, 'function', true },
-      ['conflict.show_actions'] = { opts.conflict.show_actions, 'boolean', true },
       ['conflict.keymaps'] = { opts.conflict.keymaps, 'table', true },
     })
 
diff --git a/lua/diffs/lib.lua b/lua/diffs/lib.lua
index 8376925..5b3254b 100644
--- a/lua/diffs/lib.lua
+++ b/lua/diffs/lib.lua
@@ -8,9 +8,6 @@ local cached_handle = nil
 ---@type boolean
 local download_in_progress = false
 
----@type fun(handle: table?)[]
-local pending_callbacks = {}
-
 ---@return string
 local function get_os()
   local os_name = jit.os:lower()
@@ -167,10 +164,9 @@ function M.ensure(callback)
     return
   end
 
-  table.insert(pending_callbacks, callback)
-
   if download_in_progress then
-    dbg('download already in progress, queued callback')
+    dbg('download already in progress')
+    callback(nil)
     return
   end
 
@@ -196,25 +192,21 @@ function M.ensure(callback)
   vim.system(cmd, {}, function(result)
     download_in_progress = false
     vim.schedule(function()
-      local handle = nil
       if result.code ~= 0 then
         vim.notify('[diffs] failed to download libvscode_diff', vim.log.levels.WARN)
         dbg('curl failed: %s', result.stderr or '')
-      else
-        local f = io.open(version_path(), 'w')
-        if f then
-          f:write(EXPECTED_VERSION)
-          f:close()
-        end
-        vim.notify('[diffs] libvscode_diff downloaded', vim.log.levels.INFO)
-        handle = M.load()
+        callback(nil)
+        return
       end
 
-      local cbs = pending_callbacks
-      pending_callbacks = {}
-      for _, cb in ipairs(cbs) do
-        cb(handle)
+      local f = io.open(version_path(), 'w')
+      if f then
+        f:write(EXPECTED_VERSION)
+        f:close()
       end
+
+      vim.notify('[diffs] libvscode_diff downloaded', vim.log.levels.INFO)
+      callback(M.load())
     end)
   end)
 end
diff --git a/lua/diffs/merge.lua b/lua/diffs/merge.lua
deleted file mode 100644
index 4332220..0000000
--- a/lua/diffs/merge.lua
+++ /dev/null
@@ -1,413 +0,0 @@
-local M = {}
-
-local conflict = require('diffs.conflict')
-
-local ns = vim.api.nvim_create_namespace('diffs-merge')
-
----@type table<integer, table<integer, true>>
-local resolved_hunks = {}
-
----@class diffs.MergeHunkInfo
----@field index integer
----@field start_line integer
----@field end_line integer
----@field del_lines string[]
----@field add_lines string[]
-
----@param bufnr integer
----@return diffs.MergeHunkInfo[]
-function M.parse_hunks(bufnr)
-  local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
-  local hunks = {}
-  local current = nil
-
-  for i, line in ipairs(lines) do
-    local idx = i - 1
-    if line:match('^@@') then
-      if current then
-        current.end_line = idx - 1
-        table.insert(hunks, current)
-      end
-      current = {
-        index = #hunks + 1,
-        start_line = idx,
-        end_line = idx,
-        del_lines = {},
-        add_lines = {},
-      }
-    elseif current then
-      local prefix = line:sub(1, 1)
-      if prefix == '-' then
-        table.insert(current.del_lines, line:sub(2))
-      elseif prefix == '+' then
-        table.insert(current.add_lines, line:sub(2))
-      elseif prefix ~= ' ' and prefix ~= '\\' then
-        current.end_line = idx - 1
-        table.insert(hunks, current)
-        current = nil
-      end
-      if current then
-        current.end_line = idx
-      end
-    end
-  end
-
-  if current then
-    table.insert(hunks, current)
-  end
-
-  return hunks
-end
-
----@param bufnr integer
----@return diffs.MergeHunkInfo?
-function M.find_hunk_at_cursor(bufnr)
-  local hunks = M.parse_hunks(bufnr)
-  local cursor_line = vim.api.nvim_win_get_cursor(0)[1] - 1
-
-  for _, hunk in ipairs(hunks) do
-    if cursor_line >= hunk.start_line and cursor_line <= hunk.end_line then
-      return hunk
-    end
-  end
-
-  return nil
-end
-
----@param hunk diffs.MergeHunkInfo
----@param working_bufnr integer
----@return diffs.ConflictRegion?
-function M.match_hunk_to_conflict(hunk, working_bufnr)
-  local working_lines = vim.api.nvim_buf_get_lines(working_bufnr, 0, -1, false)
-  local regions = conflict.parse(working_lines)
-
-  for _, region in ipairs(regions) do
-    local ours_lines = {}
-    for line = region.ours_start + 1, region.ours_end do
-      table.insert(ours_lines, working_lines[line])
-    end
-
-    if #ours_lines == #hunk.del_lines then
-      local match = true
-      for j = 1, #ours_lines do
-        if ours_lines[j] ~= hunk.del_lines[j] then
-          match = false
-          break
-        end
-      end
-      if match then
-        return region
-      end
-    end
-  end
-
-  return nil
-end
-
----@param diff_bufnr integer
----@return integer?
-function M.get_or_load_working_buf(diff_bufnr)
-  local ok, working_path = pcall(vim.api.nvim_buf_get_var, diff_bufnr, 'diffs_working_path')
-  if not ok or not working_path then
-    return nil
-  end
-
-  local existing = vim.fn.bufnr(working_path)
-  if existing ~= -1 then
-    return existing
-  end
-
-  local bufnr = vim.fn.bufadd(working_path)
-  vim.fn.bufload(bufnr)
-  return bufnr
-end
-
----@param diff_bufnr integer
----@param hunk_index integer
-local function mark_resolved(diff_bufnr, hunk_index)
-  if not resolved_hunks[diff_bufnr] then
-    resolved_hunks[diff_bufnr] = {}
-  end
-  resolved_hunks[diff_bufnr][hunk_index] = true
-end
-
----@param diff_bufnr integer
----@param hunk_index integer
----@return boolean
-function M.is_resolved(diff_bufnr, hunk_index)
-  return resolved_hunks[diff_bufnr] and resolved_hunks[diff_bufnr][hunk_index] or false
-end
-
----@param diff_bufnr integer
----@param hunk diffs.MergeHunkInfo
-local function add_resolved_virtual_text(diff_bufnr, hunk)
-  pcall(vim.api.nvim_buf_set_extmark, diff_bufnr, ns, hunk.start_line, 0, {
-    virt_text = { { ' (resolved)', 'Comment' } },
-    virt_text_pos = 'eol',
-  })
-end
-
----@param bufnr integer
----@param config diffs.ConflictConfig
-function M.resolve_ours(bufnr, config)
-  local hunk = M.find_hunk_at_cursor(bufnr)
-  if not hunk then
-    return
-  end
-  if M.is_resolved(bufnr, hunk.index) then
-    vim.notify('[diffs.nvim]: hunk already resolved', vim.log.levels.INFO)
-    return
-  end
-  local working_bufnr = M.get_or_load_working_buf(bufnr)
-  if not working_bufnr then
-    return
-  end
-  local region = M.match_hunk_to_conflict(hunk, working_bufnr)
-  if not region then
-    vim.notify('[diffs.nvim]: hunk does not correspond to a conflict region', vim.log.levels.INFO)
-    return
-  end
-  local lines = vim.api.nvim_buf_get_lines(working_bufnr, region.ours_start, region.ours_end, false)
-  conflict.replace_region(working_bufnr, region, lines)
-  conflict.refresh(working_bufnr, config)
-  mark_resolved(bufnr, hunk.index)
-  add_resolved_virtual_text(bufnr, hunk)
-end
-
----@param bufnr integer
----@param config diffs.ConflictConfig
-function M.resolve_theirs(bufnr, config)
-  local hunk = M.find_hunk_at_cursor(bufnr)
-  if not hunk then
-    return
-  end
-  if M.is_resolved(bufnr, hunk.index) then
-    vim.notify('[diffs.nvim]: hunk already resolved', vim.log.levels.INFO)
-    return
-  end
-  local working_bufnr = M.get_or_load_working_buf(bufnr)
-  if not working_bufnr then
-    return
-  end
-  local region = M.match_hunk_to_conflict(hunk, working_bufnr)
-  if not region then
-    vim.notify('[diffs.nvim]: hunk does not correspond to a conflict region', vim.log.levels.INFO)
-    return
-  end
-  local lines =
-    vim.api.nvim_buf_get_lines(working_bufnr, region.theirs_start, region.theirs_end, false)
-  conflict.replace_region(working_bufnr, region, lines)
-  conflict.refresh(working_bufnr, config)
-  mark_resolved(bufnr, hunk.index)
-  add_resolved_virtual_text(bufnr, hunk)
-end
-
----@param bufnr integer
----@param config diffs.ConflictConfig
-function M.resolve_both(bufnr, config)
-  local hunk = M.find_hunk_at_cursor(bufnr)
-  if not hunk then
-    return
-  end
-  if M.is_resolved(bufnr, hunk.index) then
-    vim.notify('[diffs.nvim]: hunk already resolved', vim.log.levels.INFO)
-    return
-  end
-  local working_bufnr = M.get_or_load_working_buf(bufnr)
-  if not working_bufnr then
-    return
-  end
-  local region = M.match_hunk_to_conflict(hunk, working_bufnr)
-  if not region then
-    vim.notify('[diffs.nvim]: hunk does not correspond to a conflict region', vim.log.levels.INFO)
-    return
-  end
-  local ours = vim.api.nvim_buf_get_lines(working_bufnr, region.ours_start, region.ours_end, false)
-  local theirs =
-    vim.api.nvim_buf_get_lines(working_bufnr, region.theirs_start, region.theirs_end, false)
-  local combined = {}
-  for _, l in ipairs(ours) do
-    table.insert(combined, l)
-  end
-  for _, l in ipairs(theirs) do
-    table.insert(combined, l)
-  end
-  conflict.replace_region(working_bufnr, region, combined)
-  conflict.refresh(working_bufnr, config)
-  mark_resolved(bufnr, hunk.index)
-  add_resolved_virtual_text(bufnr, hunk)
-end
-
----@param bufnr integer
----@param config diffs.ConflictConfig
-function M.resolve_none(bufnr, config)
-  local hunk = M.find_hunk_at_cursor(bufnr)
-  if not hunk then
-    return
-  end
-  if M.is_resolved(bufnr, hunk.index) then
-    vim.notify('[diffs.nvim]: hunk already resolved', vim.log.levels.INFO)
-    return
-  end
-  local working_bufnr = M.get_or_load_working_buf(bufnr)
-  if not working_bufnr then
-    return
-  end
-  local region = M.match_hunk_to_conflict(hunk, working_bufnr)
-  if not region then
-    vim.notify('[diffs.nvim]: hunk does not correspond to a conflict region', vim.log.levels.INFO)
-    return
-  end
-  conflict.replace_region(working_bufnr, region, {})
-  conflict.refresh(working_bufnr, config)
-  mark_resolved(bufnr, hunk.index)
-  add_resolved_virtual_text(bufnr, hunk)
-end
-
----@param bufnr integer
-function M.goto_next(bufnr)
-  local hunks = M.parse_hunks(bufnr)
-  if #hunks == 0 then
-    return
-  end
-
-  local working_bufnr = M.get_or_load_working_buf(bufnr)
-  if not working_bufnr then
-    return
-  end
-
-  local cursor_line = vim.api.nvim_win_get_cursor(0)[1] - 1
-
-  local candidates = {}
-  for _, hunk in ipairs(hunks) do
-    if not M.is_resolved(bufnr, hunk.index) then
-      if M.match_hunk_to_conflict(hunk, working_bufnr) then
-        table.insert(candidates, hunk)
-      end
-    end
-  end
-
-  if #candidates == 0 then
-    return
-  end
-
-  for _, hunk in ipairs(candidates) do
-    if hunk.start_line > cursor_line then
-      vim.api.nvim_win_set_cursor(0, { hunk.start_line + 1, 0 })
-      return
-    end
-  end
-
-  vim.api.nvim_win_set_cursor(0, { candidates[1].start_line + 1, 0 })
-end
-
----@param bufnr integer
-function M.goto_prev(bufnr)
-  local hunks = M.parse_hunks(bufnr)
-  if #hunks == 0 then
-    return
-  end
-
-  local working_bufnr = M.get_or_load_working_buf(bufnr)
-  if not working_bufnr then
-    return
-  end
-
-  local cursor_line = vim.api.nvim_win_get_cursor(0)[1] - 1
-
-  local candidates = {}
-  for _, hunk in ipairs(hunks) do
-    if not M.is_resolved(bufnr, hunk.index) then
-      if M.match_hunk_to_conflict(hunk, working_bufnr) then
-        table.insert(candidates, hunk)
-      end
-    end
-  end
-
-  if #candidates == 0 then
-    return
-  end
-
-  for i = #candidates, 1, -1 do
-    if candidates[i].start_line < cursor_line then
-      vim.api.nvim_win_set_cursor(0, { candidates[i].start_line + 1, 0 })
-      return
-    end
-  end
-
-  vim.api.nvim_win_set_cursor(0, { candidates[#candidates].start_line + 1, 0 })
-end
-
----@param bufnr integer
----@param config diffs.ConflictConfig
-local function apply_hunk_hints(bufnr, config)
-  if not config.show_virtual_text then
-    return
-  end
-
-  local hunks = M.parse_hunks(bufnr)
-  for _, hunk in ipairs(hunks) do
-    if M.is_resolved(bufnr, hunk.index) then
-      add_resolved_virtual_text(bufnr, hunk)
-    else
-      local parts = {}
-      local actions = {
-        { 'current', config.keymaps.ours },
-        { 'incoming', config.keymaps.theirs },
-        { 'both', config.keymaps.both },
-        { 'none', config.keymaps.none },
-      }
-      for _, action in ipairs(actions) do
-        if action[2] then
-          if #parts > 0 then
-            table.insert(parts, { ' | ', 'Comment' })
-          end
-          table.insert(parts, { ('%s: %s'):format(action[2], action[1]), 'Comment' })
-        end
-      end
-      if #parts > 0 then
-        pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, hunk.start_line, 0, {
-          virt_text = parts,
-          virt_text_pos = 'eol',
-        })
-      end
-    end
-  end
-end
-
----@param bufnr integer
----@param config diffs.ConflictConfig
-function M.setup_keymaps(bufnr, config)
-  local km = config.keymaps
-
-  local maps = {
-    { km.ours, '<Plug>(diffs-merge-ours)' },
-    { km.theirs, '<Plug>(diffs-merge-theirs)' },
-    { km.both, '<Plug>(diffs-merge-both)' },
-    { km.none, '<Plug>(diffs-merge-none)' },
-    { km.next, '<Plug>(diffs-merge-next)' },
-    { km.prev, '<Plug>(diffs-merge-prev)' },
-  }
-
-  for _, map in ipairs(maps) do
-    if map[1] then
-      vim.keymap.set('n', map[1], map[2], { buffer = bufnr })
-    end
-  end
-
-  apply_hunk_hints(bufnr, config)
-
-  vim.api.nvim_create_autocmd('BufWipeout', {
-    buffer = bufnr,
-    callback = function()
-      resolved_hunks[bufnr] = nil
-    end,
-  })
-end
-
----@return integer
-function M.get_namespace()
-  return ns
-end
-
-return M
diff --git a/plugin/diffs.lua b/plugin/diffs.lua
index face556..5d3c8b2 100644
--- a/plugin/diffs.lua
+++ b/plugin/diffs.lua
@@ -82,28 +82,3 @@ end, { desc = 'Jump to next conflict' })
 vim.keymap.set('n', '<Plug>(diffs-conflict-prev)', function()
   require('diffs.conflict').goto_prev(vim.api.nvim_get_current_buf())
 end, { desc = 'Jump to previous conflict' })
-
-local function merge_action(fn)
-  local bufnr = vim.api.nvim_get_current_buf()
-  local config = require('diffs').get_conflict_config()
-  fn(bufnr, config)
-end
-
-vim.keymap.set('n', '<Plug>(diffs-merge-ours)', function()
-  merge_action(require('diffs.merge').resolve_ours)
-end, { desc = 'Accept ours in merge diff' })
-vim.keymap.set('n', '<Plug>(diffs-merge-theirs)', function()
-  merge_action(require('diffs.merge').resolve_theirs)
-end, { desc = 'Accept theirs in merge diff' })
-vim.keymap.set('n', '<Plug>(diffs-merge-both)', function()
-  merge_action(require('diffs.merge').resolve_both)
-end, { desc = 'Accept both in merge diff' })
-vim.keymap.set('n', '<Plug>(diffs-merge-none)', function()
-  merge_action(require('diffs.merge').resolve_none)
-end, { desc = 'Reject both in merge diff' })
-vim.keymap.set('n', '<Plug>(diffs-merge-next)', function()
-  require('diffs.merge').goto_next(vim.api.nvim_get_current_buf())
-end, { desc = 'Jump to next conflict hunk' })
-vim.keymap.set('n', '<Plug>(diffs-merge-prev)', function()
-  require('diffs.merge').goto_prev(vim.api.nvim_get_current_buf())
-end, { desc = 'Jump to previous conflict hunk' })
diff --git a/spec/commands_spec.lua b/spec/commands_spec.lua
index 1bf9e61..daba5d5 100644
--- a/spec/commands_spec.lua
+++ b/spec/commands_spec.lua
@@ -40,78 +40,6 @@ describe('commands', function()
     end)
   end)
 
-  describe('filter_combined_diffs', function()
-    it('strips diff --cc entries entirely', function()
-      local lines = {
-        'diff --cc main.lua',
-        'index d13ab94,b113aee..0000000',
-        '--- a/main.lua',
-        '+++ b/main.lua',
-        '@@@ -1,7 -1,7 +1,11 @@@',
-        '  local M = {}',
-        '++<<<<<<< HEAD',
-        ' +  return 1',
-        '++=======',
-        '+   return 2',
-        '++>>>>>>> theirs',
-        '  end',
-      }
-      local result = commands.filter_combined_diffs(lines)
-      assert.are.equal(0, #result)
-    end)
-
-    it('preserves diff --git entries', function()
-      local lines = {
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,3 +1,3 @@',
-        ' local M = {}',
-        '-local x = 1',
-        '+local x = 2',
-        ' return M',
-      }
-      local result = commands.filter_combined_diffs(lines)
-      assert.are.equal(8, #result)
-      assert.are.same(lines, result)
-    end)
-
-    it('strips combined but keeps unified in mixed output', function()
-      local lines = {
-        'diff --cc conflict.lua',
-        'index aaa,bbb..000',
-        '@@@ -1,1 -1,1 +1,5 @@@',
-        '++<<<<<<< HEAD',
-        'diff --git a/clean.lua b/clean.lua',
-        '--- a/clean.lua',
-        '+++ b/clean.lua',
-        '@@ -1,1 +1,1 @@',
-        '-old',
-        '+new',
-      }
-      local result = commands.filter_combined_diffs(lines)
-      assert.are.equal(6, #result)
-      assert.are.equal('diff --git a/clean.lua b/clean.lua', result[1])
-      assert.are.equal('+new', result[6])
-    end)
-
-    it('returns empty for empty input', function()
-      local result = commands.filter_combined_diffs({})
-      assert.are.equal(0, #result)
-    end)
-
-    it('returns empty when all entries are combined', function()
-      local lines = {
-        'diff --cc a.lua',
-        'some content',
-        'diff --cc b.lua',
-        'more content',
-      }
-      local result = commands.filter_combined_diffs(lines)
-      assert.are.equal(0, #result)
-    end)
-  end)
-
   describe('find_hunk_line', function()
     it('finds matching @@ header and returns target line', function()
       local diff_lines = {
diff --git a/spec/conflict_spec.lua b/spec/conflict_spec.lua
index b163960..75eac23 100644
--- a/spec/conflict_spec.lua
+++ b/spec/conflict_spec.lua
@@ -6,7 +6,6 @@ local function default_config(overrides)
     enabled = true,
     disable_diagnostics = false,
     show_virtual_text = true,
-    show_actions = false,
     keymaps = {
       ours = 'doo',
       theirs = 'dot',
@@ -686,158 +685,4 @@ describe('conflict', function()
       helpers.delete_buffer(bufnr)
     end)
   end)
-
-  describe('virtual text formatting', function()
-    after_each(function()
-      conflict.detach(vim.api.nvim_get_current_buf())
-    end)
-
-    it('default labels show current and incoming without keymaps', function()
-      local bufnr = create_file_buffer({
-        '<<<<<<< HEAD',
-        'local x = 1',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      })
-
-      conflict.attach(bufnr, default_config())
-
-      local extmarks = get_extmarks(bufnr)
-      local labels = {}
-      for _, mark in ipairs(extmarks) do
-        if mark[4] and mark[4].virt_text then
-          table.insert(labels, mark[4].virt_text[1][1])
-        end
-      end
-      assert.are.equal(2, #labels)
-      assert.are.equal(' (current)', labels[1])
-      assert.are.equal(' (incoming)', labels[2])
-
-      helpers.delete_buffer(bufnr)
-    end)
-
-    it('uses custom format_virtual_text function', function()
-      local bufnr = create_file_buffer({
-        '<<<<<<< HEAD',
-        'local x = 1',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      })
-
-      conflict.attach(
-        bufnr,
-        default_config({
-          format_virtual_text = function(side)
-            return side == 'ours' and 'OURS' or 'THEIRS'
-          end,
-        })
-      )
-
-      local extmarks = get_extmarks(bufnr)
-      local labels = {}
-      for _, mark in ipairs(extmarks) do
-        if mark[4] and mark[4].virt_text then
-          table.insert(labels, mark[4].virt_text[1][1])
-        end
-      end
-      assert.are.equal(2, #labels)
-      assert.are.equal(' (OURS)', labels[1])
-      assert.are.equal(' (THEIRS)', labels[2])
-
-      helpers.delete_buffer(bufnr)
-    end)
-
-    it('hides label when format_virtual_text returns nil', function()
-      local bufnr = create_file_buffer({
-        '<<<<<<< HEAD',
-        'local x = 1',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      })
-
-      conflict.attach(
-        bufnr,
-        default_config({
-          format_virtual_text = function()
-            return nil
-          end,
-        })
-      )
-
-      local extmarks = get_extmarks(bufnr)
-      local virt_text_count = 0
-      for _, mark in ipairs(extmarks) do
-        if mark[4] and mark[4].virt_text then
-          virt_text_count = virt_text_count + 1
-        end
-      end
-      assert.are.equal(0, virt_text_count)
-
-      helpers.delete_buffer(bufnr)
-    end)
-  end)
-
-  describe('action lines', function()
-    after_each(function()
-      conflict.detach(vim.api.nvim_get_current_buf())
-    end)
-
-    it('adds virt_lines when show_actions is true', function()
-      local bufnr = create_file_buffer({
-        '<<<<<<< HEAD',
-        'local x = 1',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      })
-
-      conflict.attach(bufnr, default_config({ show_actions = true }))
-
-      local extmarks = get_extmarks(bufnr)
-      local virt_lines_count = 0
-      for _, mark in ipairs(extmarks) do
-        if mark[4] and mark[4].virt_lines then
-          virt_lines_count = virt_lines_count + 1
-        end
-      end
-      assert.are.equal(1, virt_lines_count)
-
-      helpers.delete_buffer(bufnr)
-    end)
-
-    it('omits disabled keymaps from action line', function()
-      local bufnr = create_file_buffer({
-        '<<<<<<< HEAD',
-        'local x = 1',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      })
-
-      conflict.attach(
-        bufnr,
-        default_config({ show_actions = true, keymaps = { both = false, none = false } })
-      )
-
-      local extmarks = get_extmarks(bufnr)
-      for _, mark in ipairs(extmarks) do
-        if mark[4] and mark[4].virt_lines then
-          local line = mark[4].virt_lines[1]
-          local text = ''
-          for _, chunk in ipairs(line) do
-            text = text .. chunk[1]
-          end
-          assert.is_truthy(text:find('Current'))
-          assert.is_truthy(text:find('Incoming'))
-          assert.is_falsy(text:find('Both'))
-          assert.is_falsy(text:find('None'))
-        end
-      end
-
-      helpers.delete_buffer(bufnr)
-    end)
-  end)
 end)
diff --git a/spec/merge_spec.lua b/spec/merge_spec.lua
deleted file mode 100644
index 7d5019b..0000000
--- a/spec/merge_spec.lua
+++ /dev/null
@@ -1,724 +0,0 @@
-local helpers = require('spec.helpers')
-local merge = require('diffs.merge')
-
-local function default_config(overrides)
-  local cfg = {
-    enabled = true,
-    disable_diagnostics = false,
-    show_virtual_text = true,
-    show_actions = false,
-    keymaps = {
-      ours = 'doo',
-      theirs = 'dot',
-      both = 'dob',
-      none = 'don',
-      next = ']x',
-      prev = '[x',
-    },
-  }
-  if overrides then
-    cfg = vim.tbl_deep_extend('force', cfg, overrides)
-  end
-  return cfg
-end
-
-local function create_diff_buffer(lines, working_path)
-  local bufnr = helpers.create_buffer(lines)
-  if working_path then
-    vim.api.nvim_buf_set_var(bufnr, 'diffs_working_path', working_path)
-  end
-  return bufnr
-end
-
-local function create_working_buffer(lines, name)
-  local bufnr = vim.api.nvim_create_buf(true, false)
-  vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, lines)
-  if name then
-    vim.api.nvim_buf_set_name(bufnr, name)
-  end
-  return bufnr
-end
-
-describe('merge', function()
-  describe('parse_hunks', function()
-    it('parses a single hunk', function()
-      local bufnr = helpers.create_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,3 +1,3 @@',
-        ' local M = {}',
-        '-local x = 1',
-        '+local x = 2',
-        ' return M',
-      })
-
-      local hunks = merge.parse_hunks(bufnr)
-      assert.are.equal(1, #hunks)
-      assert.are.equal(3, hunks[1].start_line)
-      assert.are.equal(7, hunks[1].end_line)
-      assert.are.same({ 'local x = 1' }, hunks[1].del_lines)
-      assert.are.same({ 'local x = 2' }, hunks[1].add_lines)
-
-      helpers.delete_buffer(bufnr)
-    end)
-
-    it('parses multiple hunks', function()
-      local bufnr = helpers.create_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,3 +1,3 @@',
-        ' local M = {}',
-        '-local x = 1',
-        '+local x = 2',
-        ' return M',
-        '@@ -10,3 +10,3 @@',
-        ' function M.foo()',
-        '-  return 1',
-        '+  return 2',
-        ' end',
-      })
-
-      local hunks = merge.parse_hunks(bufnr)
-      assert.are.equal(2, #hunks)
-      assert.are.equal(3, hunks[1].start_line)
-      assert.are.equal(8, hunks[2].start_line)
-
-      helpers.delete_buffer(bufnr)
-    end)
-
-    it('parses add-only hunk', function()
-      local bufnr = helpers.create_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,2 +1,3 @@',
-        ' local M = {}',
-        '+local new = true',
-        ' return M',
-      })
-
-      local hunks = merge.parse_hunks(bufnr)
-      assert.are.equal(1, #hunks)
-      assert.are.same({}, hunks[1].del_lines)
-      assert.are.same({ 'local new = true' }, hunks[1].add_lines)
-
-      helpers.delete_buffer(bufnr)
-    end)
-
-    it('parses delete-only hunk', function()
-      local bufnr = helpers.create_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,3 +1,2 @@',
-        ' local M = {}',
-        '-local old = false',
-        ' return M',
-      })
-
-      local hunks = merge.parse_hunks(bufnr)
-      assert.are.equal(1, #hunks)
-      assert.are.same({ 'local old = false' }, hunks[1].del_lines)
-      assert.are.same({}, hunks[1].add_lines)
-
-      helpers.delete_buffer(bufnr)
-    end)
-
-    it('returns empty for buffer with no hunks', function()
-      local bufnr = helpers.create_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-      })
-
-      local hunks = merge.parse_hunks(bufnr)
-      assert.are.equal(0, #hunks)
-
-      helpers.delete_buffer(bufnr)
-    end)
-  end)
-
-  describe('match_hunk_to_conflict', function()
-    it('matches hunk to conflict region', function()
-      local working_bufnr = create_working_buffer({
-        '<<<<<<< HEAD',
-        'local x = 1',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      }, '/tmp/diffs_test_match.lua')
-
-      local hunk = {
-        index = 1,
-        start_line = 3,
-        end_line = 7,
-        del_lines = { 'local x = 1' },
-        add_lines = { 'local x = 2' },
-      }
-
-      local region = merge.match_hunk_to_conflict(hunk, working_bufnr)
-      assert.is_not_nil(region)
-      assert.are.equal(0, region.marker_ours)
-
-      helpers.delete_buffer(working_bufnr)
-    end)
-
-    it('returns nil for auto-merged content', function()
-      local working_bufnr = create_working_buffer({
-        '<<<<<<< HEAD',
-        'local x = 1',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      }, '/tmp/diffs_test_auto.lua')
-
-      local hunk = {
-        index = 1,
-        start_line = 3,
-        end_line = 7,
-        del_lines = { 'local y = 3' },
-        add_lines = { 'local y = 4' },
-      }
-
-      local region = merge.match_hunk_to_conflict(hunk, working_bufnr)
-      assert.is_nil(region)
-
-      helpers.delete_buffer(working_bufnr)
-    end)
-
-    it('matches with empty ours section', function()
-      local working_bufnr = create_working_buffer({
-        '<<<<<<< HEAD',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      }, '/tmp/diffs_test_empty_ours.lua')
-
-      local hunk = {
-        index = 1,
-        start_line = 3,
-        end_line = 5,
-        del_lines = {},
-        add_lines = { 'local x = 2' },
-      }
-
-      local region = merge.match_hunk_to_conflict(hunk, working_bufnr)
-      assert.is_not_nil(region)
-
-      helpers.delete_buffer(working_bufnr)
-    end)
-
-    it('matches correct region among multiple conflicts', function()
-      local working_bufnr = create_working_buffer({
-        '<<<<<<< HEAD',
-        'local a = 1',
-        '=======',
-        'local a = 2',
-        '>>>>>>> feature',
-        'middle',
-        '<<<<<<< HEAD',
-        'local b = 3',
-        '=======',
-        'local b = 4',
-        '>>>>>>> feature',
-      }, '/tmp/diffs_test_multi.lua')
-
-      local hunk = {
-        index = 2,
-        start_line = 8,
-        end_line = 12,
-        del_lines = { 'local b = 3' },
-        add_lines = { 'local b = 4' },
-      }
-
-      local region = merge.match_hunk_to_conflict(hunk, working_bufnr)
-      assert.is_not_nil(region)
-      assert.are.equal(6, region.marker_ours)
-
-      helpers.delete_buffer(working_bufnr)
-    end)
-
-    it('matches with diff3 format', function()
-      local working_bufnr = create_working_buffer({
-        '<<<<<<< HEAD',
-        'local x = 1',
-        '||||||| base',
-        'local x = 0',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      }, '/tmp/diffs_test_diff3.lua')
-
-      local hunk = {
-        index = 1,
-        start_line = 3,
-        end_line = 7,
-        del_lines = { 'local x = 1' },
-        add_lines = { 'local x = 2' },
-      }
-
-      local region = merge.match_hunk_to_conflict(hunk, working_bufnr)
-      assert.is_not_nil(region)
-      assert.are.equal(2, region.marker_base)
-
-      helpers.delete_buffer(working_bufnr)
-    end)
-  end)
-
-  describe('resolution', function()
-    local diff_bufnr, working_bufnr
-
-    local function setup_buffers()
-      local working_path = '/tmp/diffs_test_resolve.lua'
-      working_bufnr = create_working_buffer({
-        '<<<<<<< HEAD',
-        'local x = 1',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      }, working_path)
-
-      diff_bufnr = create_diff_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,1 +1,1 @@',
-        '-local x = 1',
-        '+local x = 2',
-      }, working_path)
-      vim.api.nvim_set_current_buf(diff_bufnr)
-    end
-
-    local function cleanup()
-      helpers.delete_buffer(diff_bufnr)
-      helpers.delete_buffer(working_bufnr)
-    end
-
-    it('resolve_ours keeps ours content in working file', function()
-      setup_buffers()
-      vim.api.nvim_win_set_cursor(0, { 5, 0 })
-
-      merge.resolve_ours(diff_bufnr, default_config())
-
-      local lines = vim.api.nvim_buf_get_lines(working_bufnr, 0, -1, false)
-      assert.are.equal(1, #lines)
-      assert.are.equal('local x = 1', lines[1])
-
-      cleanup()
-    end)
-
-    it('resolve_theirs keeps theirs content in working file', function()
-      setup_buffers()
-      vim.api.nvim_win_set_cursor(0, { 5, 0 })
-
-      merge.resolve_theirs(diff_bufnr, default_config())
-
-      local lines = vim.api.nvim_buf_get_lines(working_bufnr, 0, -1, false)
-      assert.are.equal(1, #lines)
-      assert.are.equal('local x = 2', lines[1])
-
-      cleanup()
-    end)
-
-    it('resolve_both keeps ours then theirs in working file', function()
-      setup_buffers()
-      vim.api.nvim_win_set_cursor(0, { 5, 0 })
-
-      merge.resolve_both(diff_bufnr, default_config())
-
-      local lines = vim.api.nvim_buf_get_lines(working_bufnr, 0, -1, false)
-      assert.are.equal(2, #lines)
-      assert.are.equal('local x = 1', lines[1])
-      assert.are.equal('local x = 2', lines[2])
-
-      cleanup()
-    end)
-
-    it('resolve_none removes entire block from working file', function()
-      setup_buffers()
-      vim.api.nvim_win_set_cursor(0, { 5, 0 })
-
-      merge.resolve_none(diff_bufnr, default_config())
-
-      local lines = vim.api.nvim_buf_get_lines(working_bufnr, 0, -1, false)
-      assert.are.equal(1, #lines)
-      assert.are.equal('', lines[1])
-
-      cleanup()
-    end)
-
-    it('tracks resolved hunks', function()
-      setup_buffers()
-      vim.api.nvim_win_set_cursor(0, { 5, 0 })
-
-      assert.is_false(merge.is_resolved(diff_bufnr, 1))
-      merge.resolve_ours(diff_bufnr, default_config())
-      assert.is_true(merge.is_resolved(diff_bufnr, 1))
-
-      cleanup()
-    end)
-
-    it('adds virtual text for resolved hunks', function()
-      setup_buffers()
-      vim.api.nvim_win_set_cursor(0, { 5, 0 })
-
-      merge.resolve_ours(diff_bufnr, default_config())
-
-      local extmarks =
-        vim.api.nvim_buf_get_extmarks(diff_bufnr, merge.get_namespace(), 0, -1, { details = true })
-      local has_resolved_text = false
-      for _, mark in ipairs(extmarks) do
-        if mark[4] and mark[4].virt_text then
-          for _, chunk in ipairs(mark[4].virt_text) do
-            if chunk[1]:match('resolved') then
-              has_resolved_text = true
-            end
-          end
-        end
-      end
-      assert.is_true(has_resolved_text)
-
-      cleanup()
-    end)
-
-    it('notifies when hunk is already resolved', function()
-      setup_buffers()
-      vim.api.nvim_win_set_cursor(0, { 5, 0 })
-
-      merge.resolve_ours(diff_bufnr, default_config())
-
-      local notified = false
-      local orig_notify = vim.notify
-      vim.notify = function(msg)
-        if msg:match('already resolved') then
-          notified = true
-        end
-      end
-
-      merge.resolve_ours(diff_bufnr, default_config())
-      vim.notify = orig_notify
-
-      assert.is_true(notified)
-
-      cleanup()
-    end)
-
-    it('notifies when hunk does not match a conflict', function()
-      local working_path = '/tmp/diffs_test_no_conflict.lua'
-      local w_bufnr = create_working_buffer({
-        'local y = 1',
-      }, working_path)
-
-      local d_bufnr = create_diff_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,1 +1,1 @@',
-        '-local x = 1',
-        '+local x = 2',
-      }, working_path)
-      vim.api.nvim_set_current_buf(d_bufnr)
-      vim.api.nvim_win_set_cursor(0, { 5, 0 })
-
-      local notified = false
-      local orig_notify = vim.notify
-      vim.notify = function(msg)
-        if msg:match('does not correspond') then
-          notified = true
-        end
-      end
-
-      merge.resolve_ours(d_bufnr, default_config())
-      vim.notify = orig_notify
-
-      assert.is_true(notified)
-
-      helpers.delete_buffer(d_bufnr)
-      helpers.delete_buffer(w_bufnr)
-    end)
-  end)
-
-  describe('navigation', function()
-    it('goto_next jumps to next conflict hunk', function()
-      local working_path = '/tmp/diffs_test_nav.lua'
-      local w_bufnr = create_working_buffer({
-        '<<<<<<< HEAD',
-        'local a = 1',
-        '=======',
-        'local a = 2',
-        '>>>>>>> feature',
-        'middle',
-        '<<<<<<< HEAD',
-        'local b = 3',
-        '=======',
-        'local b = 4',
-        '>>>>>>> feature',
-      }, working_path)
-
-      local d_bufnr = create_diff_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,1 +1,1 @@',
-        '-local a = 1',
-        '+local a = 2',
-        '@@ -5,1 +5,1 @@',
-        '-local b = 3',
-        '+local b = 4',
-      }, working_path)
-      vim.api.nvim_set_current_buf(d_bufnr)
-      vim.api.nvim_win_set_cursor(0, { 1, 0 })
-
-      merge.goto_next(d_bufnr)
-      assert.are.equal(4, vim.api.nvim_win_get_cursor(0)[1])
-
-      merge.goto_next(d_bufnr)
-      assert.are.equal(7, vim.api.nvim_win_get_cursor(0)[1])
-
-      helpers.delete_buffer(d_bufnr)
-      helpers.delete_buffer(w_bufnr)
-    end)
-
-    it('goto_next wraps around', function()
-      local working_path = '/tmp/diffs_test_wrap.lua'
-      local w_bufnr = create_working_buffer({
-        '<<<<<<< HEAD',
-        'local x = 1',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      }, working_path)
-
-      local d_bufnr = create_diff_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,1 +1,1 @@',
-        '-local x = 1',
-        '+local x = 2',
-      }, working_path)
-      vim.api.nvim_set_current_buf(d_bufnr)
-      vim.api.nvim_win_set_cursor(0, { 6, 0 })
-
-      merge.goto_next(d_bufnr)
-      assert.are.equal(4, vim.api.nvim_win_get_cursor(0)[1])
-
-      helpers.delete_buffer(d_bufnr)
-      helpers.delete_buffer(w_bufnr)
-    end)
-
-    it('goto_prev jumps to previous conflict hunk', function()
-      local working_path = '/tmp/diffs_test_prev.lua'
-      local w_bufnr = create_working_buffer({
-        '<<<<<<< HEAD',
-        'local a = 1',
-        '=======',
-        'local a = 2',
-        '>>>>>>> feature',
-        'middle',
-        '<<<<<<< HEAD',
-        'local b = 3',
-        '=======',
-        'local b = 4',
-        '>>>>>>> feature',
-      }, working_path)
-
-      local d_bufnr = create_diff_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,1 +1,1 @@',
-        '-local a = 1',
-        '+local a = 2',
-        '@@ -5,1 +5,1 @@',
-        '-local b = 3',
-        '+local b = 4',
-      }, working_path)
-      vim.api.nvim_set_current_buf(d_bufnr)
-      vim.api.nvim_win_set_cursor(0, { 9, 0 })
-
-      merge.goto_prev(d_bufnr)
-      assert.are.equal(7, vim.api.nvim_win_get_cursor(0)[1])
-
-      merge.goto_prev(d_bufnr)
-      assert.are.equal(4, vim.api.nvim_win_get_cursor(0)[1])
-
-      helpers.delete_buffer(d_bufnr)
-      helpers.delete_buffer(w_bufnr)
-    end)
-
-    it('goto_prev wraps around', function()
-      local working_path = '/tmp/diffs_test_prev_wrap.lua'
-      local w_bufnr = create_working_buffer({
-        '<<<<<<< HEAD',
-        'local x = 1',
-        '=======',
-        'local x = 2',
-        '>>>>>>> feature',
-      }, working_path)
-
-      local d_bufnr = create_diff_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,1 +1,1 @@',
-        '-local x = 1',
-        '+local x = 2',
-      }, working_path)
-      vim.api.nvim_set_current_buf(d_bufnr)
-      vim.api.nvim_win_set_cursor(0, { 1, 0 })
-
-      merge.goto_prev(d_bufnr)
-      assert.are.equal(4, vim.api.nvim_win_get_cursor(0)[1])
-
-      helpers.delete_buffer(d_bufnr)
-      helpers.delete_buffer(w_bufnr)
-    end)
-
-    it('skips resolved hunks', function()
-      local working_path = '/tmp/diffs_test_skip_resolved.lua'
-      local w_bufnr = create_working_buffer({
-        '<<<<<<< HEAD',
-        'local a = 1',
-        '=======',
-        'local a = 2',
-        '>>>>>>> feature',
-        'middle',
-        '<<<<<<< HEAD',
-        'local b = 3',
-        '=======',
-        'local b = 4',
-        '>>>>>>> feature',
-      }, working_path)
-
-      local d_bufnr = create_diff_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,1 +1,1 @@',
-        '-local a = 1',
-        '+local a = 2',
-        '@@ -5,1 +5,1 @@',
-        '-local b = 3',
-        '+local b = 4',
-      }, working_path)
-      vim.api.nvim_set_current_buf(d_bufnr)
-      vim.api.nvim_win_set_cursor(0, { 5, 0 })
-
-      merge.resolve_ours(d_bufnr, default_config())
-
-      vim.api.nvim_win_set_cursor(0, { 1, 0 })
-      merge.goto_next(d_bufnr)
-      assert.are.equal(7, vim.api.nvim_win_get_cursor(0)[1])
-
-      helpers.delete_buffer(d_bufnr)
-      helpers.delete_buffer(w_bufnr)
-    end)
-  end)
-
-  describe('hunk hints', function()
-    it('adds keymap hints on hunk header lines', function()
-      local d_bufnr = create_diff_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,1 +1,1 @@',
-        '-local x = 1',
-        '+local x = 2',
-      })
-
-      merge.setup_keymaps(d_bufnr, default_config())
-
-      local extmarks =
-        vim.api.nvim_buf_get_extmarks(d_bufnr, merge.get_namespace(), 0, -1, { details = true })
-      local hint_marks = {}
-      for _, mark in ipairs(extmarks) do
-        if mark[4] and mark[4].virt_text then
-          local text = ''
-          for _, chunk in ipairs(mark[4].virt_text) do
-            text = text .. chunk[1]
-          end
-          table.insert(hint_marks, { line = mark[2], text = text })
-        end
-      end
-      assert.are.equal(1, #hint_marks)
-      assert.are.equal(3, hint_marks[1].line)
-      assert.is_truthy(hint_marks[1].text:find('doo'))
-      assert.is_truthy(hint_marks[1].text:find('dot'))
-
-      helpers.delete_buffer(d_bufnr)
-    end)
-
-    it('does not add hints when show_virtual_text is false', function()
-      local d_bufnr = create_diff_buffer({
-        'diff --git a/file.lua b/file.lua',
-        '--- a/file.lua',
-        '+++ b/file.lua',
-        '@@ -1,1 +1,1 @@',
-        '-local x = 1',
-        '+local x = 2',
-      })
-
-      merge.setup_keymaps(d_bufnr, default_config({ show_virtual_text = false }))
-
-      local extmarks =
-        vim.api.nvim_buf_get_extmarks(d_bufnr, merge.get_namespace(), 0, -1, { details = true })
-      local virt_text_count = 0
-      for _, mark in ipairs(extmarks) do
-        if mark[4] and mark[4].virt_text then
-          virt_text_count = virt_text_count + 1
-        end
-      end
-      assert.are.equal(0, virt_text_count)
-
-      helpers.delete_buffer(d_bufnr)
-    end)
-  end)
-
-  describe('fugitive integration', function()
-    it('parse_file_line returns status for unmerged files', function()
-      local fugitive = require('diffs.fugitive')
-      local buf = vim.api.nvim_create_buf(false, true)
-      vim.api.nvim_buf_set_lines(buf, 0, -1, false, {
-        'Unstaged (1)',
-        'U  conflict.lua',
-      })
-      local filename, section, is_header, old_filename, status = fugitive.get_file_at_line(buf, 2)
-      assert.are.equal('conflict.lua', filename)
-      assert.are.equal('unstaged', section)
-      assert.is_false(is_header)
-      assert.is_nil(old_filename)
-      assert.are.equal('U', status)
-      vim.api.nvim_buf_delete(buf, { force = true })
-    end)
-
-    it('parse_file_line returns status for modified files', function()
-      local fugitive = require('diffs.fugitive')
-      local buf = vim.api.nvim_create_buf(false, true)
-      vim.api.nvim_buf_set_lines(buf, 0, -1, false, {
-        'Unstaged (1)',
-        'M  file.lua',
-      })
-      local _, _, _, _, status = fugitive.get_file_at_line(buf, 2)
-      assert.are.equal('M', status)
-      vim.api.nvim_buf_delete(buf, { force = true })
-    end)
-
-    it('walkback from hunk line propagates status', function()
-      local fugitive = require('diffs.fugitive')
-      local buf = vim.api.nvim_create_buf(false, true)
-      vim.api.nvim_buf_set_lines(buf, 0, -1, false, {
-        'Unstaged (1)',
-        'U  conflict.lua',
-        '@@ -1,3 +1,4 @@',
-        ' local M = {}',
-        '+local new = true',
-      })
-      local _, _, _, _, status = fugitive.get_file_at_line(buf, 5)
-      assert.are.equal('U', status)
-      vim.api.nvim_buf_delete(buf, { force = true })
-    end)
-  end)
-end)