Is there a Ramda way to merge those two data arrays?

I need to merge two data arrays of the same shape.

My working code is this:

import * as R from 'ramda'

const expected = [
    [
        {
            "zeroData": false,
            "responseCount": [
                0,
                0,
                1,
                9
            ],
            "responsePercent": [
                0,
                0,
                0.1,
                0.9
            ],
            "index": 9.666666666666666,
            "stdDev": 0.9999999999999999,
            "expectedStdDev": 1.651740425387243
        }
    ]
]

const t1 = [
    [
        {
            "zeroData": false,
            "responseCount": [
                0,
                0,
                1,
                9
            ],
            "responsePercent": [
                0,
                0,
                0.1,
                0.9
            ],
            "index": 9.666666666666666,
            "stdDev": 0.9999999999999999
        }
    ]
]

const t2 = [
    [
        {
            "expectedStdDev": 1.651740425387243
        }
    ]
]

test('merge', () => {
    const merged = t1.map((arr1, idx1) => {
        return arr1.map((obj, idx2) => ({...obj, ...t2[idx1][idx2]}))
    })

    expect(merged).toStrictEqual(expected)
})

Is there a simple and elegant Ramda-way to do it? And especially a generic solution that would allow to specify the depth at which the merging should occur.

Tried various combinations of the R functions with no luck