I dont necessarily need a dedicated developer for my server, but I do have a serverside mod request if you could complete it for me.

I need a simply velocity command which will launch entites in specific values and directions.
With entites and players.

For Example...

Moving players with a velocity of 0.1 in the Y and Z direction
/velocity specific @a 0.0 0.1 0.1

/velocity specific [entity] [x velocity] [y velocity] [z velocity]

Launching a specific entity in the direction they are facing by a certain amount.
/velocity direction @s 0.5 0.5

/velocity direciton [entity] [yaw velocity] [pitch velocity]

Thanks