I read project readme, checked client side and server side configurations, and no such feature exists - YES

Is your feature request related to a problem? Please describe.
Midair rolling is a fun mechanic but fairly powerful for the added distance of the roll. In combat on uneven terrain, I also often find myself attempting to roll while jumping up or falling down a block.

Describe the solution you'd like
Adding a new enchantment that enables rolling in midair. This opens up air rolling as a late-game mechanic to further increase mobility.

Describe alternatives you've considered
Having midair rolling enabled universally is fun and useful but is also very powerful especially in the early game and having this be possible from the start feels a little too strong.

Additional context
Like the other enchantments, it should be possible to enable/disable this via the config. I'd suggest it being a treasure enchantment, and possibly disabled by default.

So what happens to the significant portion of the playerbase who don't want this feature?

It's presumptive to state that a significant portion of users wouldn't want it without having polled anyone.

Even so, that's why I suggested it being toggleable in the config. It wouldn't affect these players.

How exactly would that toggle work?

Enchantments are not possible to enable/disable dynamically

How do your other enchantments work? In your enchantments.json they all have a field where they can be enabled/disabled.

I have used other mods in the past that have also allowed the ability to toggle specific enchantments in the config.

No such config exists anymore in modern game versions.