How to make the :bd buffer completion show the buffer number alongside its name?

[Dolfost]

For example, I type in command mode:

And this is what I get.

How to make it show a number AND buffer name from :ls command?

for example, init.lua has number 3. Sow in buffer completion it would looked like

3 init.lua

This idea may break something, I just don't know. Is it easy to implement -- or stuff is already hard-coded so it will be bad idea. Any help or information are welcome.