• Connect the STM32F746G-DISCO board via the ST-LINK USB port to your Mac.
• Make sure you have a recent nightly Swift toolchain that has Embedded Swift support.
• Install the stlink (https://github.com/stlink-org/stlink) command line tools, e.g. via brew install stlink.
• Build and upload the program to flash memory of the STM:

$ cd stm32-lcd-logo
$ TOOLCHAINS='<toolchain-identifier>' ./build.sh
$ st-flash --reset write .build/lcd-logo.bin 0x08000000

• The LCD display on the board should now be showing a bouncing animating Swift logo on a fading background, and the user LED on should be blinking.

Resulting size of the compiled and linked binary follows (3.5 kB of code + 10 kB of pixel data):

$ size -m .build/lcd-logo
Segment __TEXT: 14376
  Section __text: 3604
  Section __const: 10000
  total 13604
Segment __DATA: 8
  Section __nl_symbol_ptr: 4
  Section __data: 4
  total 8
Segment __VECTORS: 456
  Section __text: 456
  total 456
Segment __LINKEDIT: 1056
total 15896