return {
    'sindrets/diffview.nvim',
    config = function()
        vim.keymap.set('n', '<leader>dv', ':DiffviewOpen<CR>', { silent = true })

        vim.api.nvim_create_autocmd("User", {
            pattern = "DiffviewViewEnter",
            callback = function()
                vim.keymap.del('n', 'Ā')

                for _, buf in ipairs(vim.api.nvim_list_bufs()) do
                    if vim.api.nvim_buf_is_loaded(buf)
                        and vim.api.nvim_buf_get_name(buf) == ""
                        and vim.bo[buf].buftype == "" then
                        vim.api.nvim_buf_delete(buf, { force = true })
                    end
                end
            end,
        })

        vim.api.nvim_create_autocmd("User", {
            pattern = "DiffviewViewLeave",
            callback = function()
                vim.keymap.set('n', 'Ā', ':NvimTreeToggle<CR>', { silent = true })
            end,
        })

        local actions = require("diffview.actions")
        require('diffview').setup({
            view = {
                merge_tool = {
                    disable_diagnostics = false
                },
            },
            keymaps = {
                view = {
                    -- The `view` bindings are active in the diff buffers, only when the current
                    -- tabpage is a Diffview.
                    { "n", "<tab>",      actions.select_next_entry,             { desc = "Open the diff for the next file" } },
                    { "n", "<s-tab>",    actions.select_prev_entry,             { desc = "Open the diff for the previous file" } },
                    { "n", "[F",         actions.select_first_entry,            { desc = "Open the diff for the first file" } },
                    { "n", "]F",         actions.select_last_entry,             { desc = "Open the diff for the last file" } },
                    { "n", "gf",         actions.goto_file_edit,                { desc = "Open the file in the previous tabpage" } },
                    { "n", "<C-w><C-f>", actions.goto_file_split,               { desc = "Open the file in a new split" } },
                    { "n", "<C-w>gf",    actions.goto_file_tab,                 { desc = "Open the file in a new tabpage" } },
                    { "n", "Ā",          actions.toggle_files,                  { desc = "Toggle the file panel." } },
                    { "n", "g<C-x>",     actions.cycle_layout,                  { desc = "Cycle through available layouts." } },
                    { "n", "<M-p>",      actions.prev_conflict,                 { desc = "In the merge-tool: jump to the previous conflict" } },
                    { "n", "<M-n>",      actions.next_conflict,                 { desc = "In the merge-tool: jump to the next conflict" } },
                    { "n", "gh",         actions.conflict_choose("ours"),       { desc = "Choose the OURS version of a conflict" } },
                    { "n", "gl",         actions.conflict_choose("theirs"),     { desc = "Choose the THEIRS version of a conflict" } },
                    { "n", "gb",         actions.conflict_choose("base"),       { desc = "Choose the BASE version of a conflict" } },
                    { "n", "ga",         actions.conflict_choose("all"),        { desc = "Choose all the versions of a conflict" } },
                    { "n", "gx",         actions.conflict_choose("none"),       { desc = "Delete the conflict region" } },
                    { "n", "gH",         actions.conflict_choose_all("ours"),   { desc = "Choose the OURS version of a conflict for the whole file" } },
                    { "n", "gL",         actions.conflict_choose_all("theirs"), { desc = "Choose the THEIRS version of a conflict for the whole file" } },
                    { "n", "gB",         actions.conflict_choose_all("base"),   { desc = "Choose the BASE version of a conflict for the whole file" } },
                    { "n", "gA",         actions.conflict_choose_all("all"),    { desc = "Choose all the versions of a conflict for the whole file" } },
                    { "n", "gX",         actions.conflict_choose_all("none"),   { desc = "Delete the conflict region for the whole file" } },
                },
                file_panel = {
                    { "n", "Ā", actions.toggle_files, { desc = "Toggle the file panel" } },
                }
            }
        })
    end
}