Quantity   Component name
1 × A zeptoforth binary, whether just a kernel or one containing compiled Forth code (the latter is highly recommended)
1 × A compatible board, such as the STM32L476 DISCOVERY or STM32F407 DISCOVERY boards
1 × A means to flash said board (e.g. ST-Link, or in the case of the DISCOVERY boards, a USB to USB Mini cable)
1 × A means to communicate with said board over serial or ST-Link (to enable the use of swdcom)