Longer name for Jack?

I hope this is the nice group for names and not the super judgmental one 😅.

My husband and I like the name Jack as a day to day nickname but would like something more complete for the official government name.

We are considering Jackman (it doesn’t bother me if you think of Hugh) because we don’t really care for Jackson, Jacoby, Jacques, etc all the names that keep coming up. I know it’s not common, and we aren’t doing to it be “unique” we just are looking to check our boxes and I think it’s a bit classic.

Thoughts?

Edit: to clarify it is NOT pronounced “Jack-man”, its pronounced just as causally as the last name is “Jack-min”