To use this, you'll need to get the gerber files for one of the boards in the files section, and get a manufacturers to make it. If you don't know which one to choose, I usually go for jlcpcb.com

For the components, take care of what you'll need. Usually, you need at least one 5 pin bended header, to connect the board to the controller(arduino, raspberry, ...), 2 x 74HC595, required for all boards, some 220R resistors, in 0805 packages, one per digit used on the board, and some female header pins to plug the display.

Yeah, that's pretty self axplanatory, but important ^^

Once I'll have the library ready, it will get easier, so, I'll leave this blank for now

yup, that's it :)