Pretty crude sketch that was written in a couple of hours with ChatGPT.

Delay is randomly chosen from min and max values, if you need a static delay just send two same values.

CSV data it accepts:

Keyboard

Send key:

1, ASCII code, minDelay, maxDelay

Toggle key:

2, ASCII code, pressed(1 or 0), minDelay, maxDelay

Print keys:

3, text, minDelay, maxDelay

Mouse

Mouse click:

4, button(1 or 2 or 4), minDelay, maxDelay

1 = left button, 2 = right button, 4 = middle button

Mouse toggle:

5, button(1 or 2 or 4), pressed(1 or 0), minDelay, maxDelay

1 = left button, 2 = right button, 4 = middle button

Mouse move:

6, x, y, numSteps, minDelay, maxDelay, minControlDistance, maxControlDistance, offset

minControlDistance, maxControlDistance and offset are responsible for deviation of the movement. Delay values are applied to every numStep, with these 2 values and numStep number you can define the speed.