Are deprecation messages in Neovim too annoying? Then enhance them with this little script!

depreCATE.lua

local 🏷️ 🪐 = vim.api.nvim_create_namespace('depreCATE')

vim.deprecate = function(name, alternative, version, plugin, backtrace)
  local lines = {
    "",
    "🚨 🐧📣  W A R N I N G ! ! ! ! 🚨",
    "",
    "",
    "😱 " .. name .. " IS DEPRECATED!!!! 😱",
    "",
    "IT WILL BE REMOVED IN " .. (plugin or "NVIM") .. " VERSION " .. version .. "!",
    "",
  }
  if backtrace == nil or backtrace then
    vim.list_extend(lines, vim.split(debug.traceback('', 2):sub(2), "\n"))
    lines[#lines + 1] = ""
  end

  local w = vim.iter(lines):fold(0, function(acc, l)
    return math.max(acc, #l)
  end)
  local h = #lines

  vim.schedule(function()
    local b = vim.api.nvim_create_buf(false, true)
    vim.api.nvim_buf_set_lines(b, 0, -1, true, lines)
    for i = 1, math.random(1, 1) do
      local x = math.random(1, vim.o.columns - w - 3)
      local y = math.random(1, vim.o.lines - h - vim.o.cmdheight - 3)
      local 🪟 = vim.api.nvim_open_win(b, true, {
        relative = "editor",
        row = y,
        col = x,
        width = w,
        height = h,
        border = "rounded",
        zindex = 9001,
        style = "minimal",
      })
      vim.wo[🪟].winfixbuf=true

      vim.api.nvim_win_set_hl_ns(🪟, 🏷️ 🪐)
      vim.api.nvim_set_hl(🏷️ 🪐, 'FloatBorder', {link = 'NormalFloat'})
      local ⏰ = vim.uv.new_timer()
      local 🚨 = false
      ⏰:start(0, 250, vim.schedule_wrap(function()
        if not vim.api.nvim_win_is_valid(🪟) then
          return
        end
        🚨 = not 🚨
        vim.api.nvim_set_hl(🏷️ 🪐, 'NormalFloat', {bg = 🚨 and '#ff0000' or '#ffff00', ctermbg = 🚨 and 'red' or 'yellow',
          fg = 🚨 and '#ffffff' or '#000000', ctermfg =  🚨 and 'white' or 'black'})
        vim.api.nvim__redraw({win = 🪟, valid = false})
      end))

      local ⏰2 = vim.uv.new_timer()
      local vx = math.random(2) == 1 and 1 or -1
      local vy = math.random(2) == 1 and 1 or -1
      ⏰2:start(0, 50, vim.schedule_wrap(function()
        if not vim.api.nvim_win_is_valid(🪟) then
          return
        end
        x = x + vx
        if x <= 1 or x >= vim.o.columns - w - 2 then
          vx = -vx
        end
        y = y + vy
        if y <= 1 or y >= vim.o.lines - h - vim.o.cmdheight - 2 then
          vy = -vy
        end
        vim.api.nvim_win_set_config(🪟, {relative='editor',row = y, col = x})
      end))

      vim.api.nvim_create_autocmd('WinClosed', {pattern = tostring(🪟), callback = function()
        ⏰:stop()
        ⏰:close()
        ⏰2:stop()
        ⏰2:close()
      end})
    end
  end)
end