return {
    'stevearc/conform.nvim',
    dependencies = { 'zapling/mason-conform.nvim' },
    event = 'BufWritePre',
    cmd = 'ConformInfo',
    keys = { '<leader>tf' },
    config = function()
        require('conform').setup({
            formatters = {
                ['markdown-toc'] = {
                    condition = function(_, ctx)
                        for _, line in ipairs(vim.api.nvim_buf_get_lines(ctx.buf, 0, -1, false)) do
                            if line:find('<!%-%-% toc %-%->') then
                                return true
                            end
                        end
                    end,
                },
                ['markdownlint-cli2'] = {
                    condition = function(_, ctx)
                        local diag = vim.tbl_filter(function(d)
                            return d.source == 'markdownlint'
                        end, vim.diagnostic.get(ctx.buf))
                        return #diag > 0
                    end,
                },
            },
            formatters_by_ft = {
                ['lua'] = { 'stylua' },
                ['c'] = { 'clang_format' },
                ['cpp'] = { 'clang_format' },
                ['h'] = { 'clang_format' },
                ['python'] = { 'ruff_fix', 'ruff_format', 'ruff_organize_imports' },
                ['javascript'] = { 'biome' },
                ['typescript'] = { 'biome' },
                ['typescriptreact'] = { 'biome' },
                ['markdown'] = { 'prettier', 'markdownlint-cli2', 'markdown-toc' },
                ['markdown.mdx'] = { 'prettier', 'markdownlint-cli2', 'markdown-toc' },
                ['mdx'] = { 'prettier' },
                ['_'] = { 'trim_whitespace' },
            },
            options = {
                stop_after_first = true,
            },
            format_after_save = function(bufnr)
                if not vim.b[bufnr].conform_disable then
                    return {
                        lsp_format = 'fallback',
                    }
                end
            end,
        })

        vim.keymap.set('n', '<leader>tf', function()
            vim.b.conform_disable = not vim.b.conform_disable
            local status = vim.b.conform_disable and 'disabled' or 'enabled'
            vim.notify('Autoformat ' .. status, vim.log.levels.INFO)
        end, { desc = 'Toggle autoformat' })
        require('mason-conform').setup({
            ensure_installed = {
                'clang_format',
                'ruff',
                'stylua',
                'prettier',
                'markdown-toc',
                'markdownlint-cli2',
                'biome',
            },
            automatic_installation = true,
        })
    end,
}