local justify_right_second_col = function(parts, _)
  local target_width = vim.bo.textwidth > 0 and vim.bo.textwidth or 80

  -- For the line 'aaa *aaa*' the row is `{ 'aaa', ' ', '*aaa*'}`
  for _, row in ipairs(parts) do
    -- Make sure that separator column doesn't affect
    row[2] = ""
    -- Justify second column so that its right part is at `target_width`
    row[3] = string.rep(" ", target_width - vim.fn.strchars(row[1]) - vim.fn.strchars(row[3])) .. row[3]
  end
end

local align_helptag = function(steps, opts)
  -- Split based on whitespace
  opts.split_pattern = "%s+"
  steps.justify = MiniAlign.new_step("justify_helptag", justify_right_second_col)
end

vim.b.minialign_config = { modifiers = { ["*"] = align_helptag } }