Writing custom HID firmware for STM32f103Vet6 3days time!

Hallo I need a custom HID Firmware for my STM32f1Vet6 board. What i want is to control via Computer software some LEDs, servos and MAX7219. Also some Inputs. So Buttons, encoders, potentiometers, toggle switches (two types ON-OFF and ON-OFF-ON) So the Firmware should include 2 types of every device for illustration. for Leds i want to send a on/off command. for Servo i want to controll the position. And for Max7219 i want to send for example number 12345678 to display it on a 7 segment display with 8 segments. for inputs its similar. So i want to happen something if i press a button or rotate a encoder. I have already a firmware for stm32f103vet6 and maybe we can build on that. But you have to check. otherwise we are building a new one. The Written Firmware is a gamecontroller firmware with inputs for Buttons, Toggle switches, Encoders and potentiometers. But its a gamecontroller HID and i need to change it to Custome HID and add all the "Outputs" like Leds, Max..... Time for this is very low. So i need it in about 3 days ready or Less! Also very important is that there need to be a very simple option to add more devices to the firmware. So in case i need 10 x leds, 20 x 7 segment it should be also possible Example for configuration file that i can modify is something like: Pin1 = Led Pin2= Led Pin3 = Max7219 .... ..... - Also I have to test it somehow. My software will be build after finishing the Firmware. So You have to make it possible to test everything. - One more thing to mention is that there is no time to order a PCB with STM32F103Vet6. You have to test it on my Computer. I have CubeMX installed and IAR test Version and also KEIL. But it must be ported to the Software of your choose. And i have no idea if you need any extensions or something else. Thanks