Short drills, one row at a time. The keyboard underneath shows finger zones and lights up the key you need to press next.
Your fingers rest on the home row. Left hand on
A S D F
and right hand on
J K L ;.
Both index fingers should be able to feel the small bumps on F and J,
which is how you find the row without looking.
Pinky: A, Q, Z
Ring: S, W, X
Middle: D, E, C
Index: F, R, V (also G, T, B)
Index: J, U, M (also H, Y, N)
Middle: K, I, ,
Ring: L, O, .
Pinky: ;, P, /