[k4rli]

-v didn't work on 12.1.7+nmu3ubuntu1 and -M does nothing seemingly. `ncal -b -A2` looks very good.

[amrtn]

-M sets the first day of the week to Monday. If in your locale the weeks already begin on Monday you are not going to see much difference on the output.

[sigtstp]

Ah, my bad. I'm on Arch and it packages cal, not ncal. Wasn't familiar with it and it looks like the flags are different. Because why not...