Launcher-X4

Launcher-X4 is a GRUB like bootloader for Xteink X4 (ported from bmorcelli's) Download the BIN file and install it with esptool (`brew install esptool` if you're on Mac and using Homebrew), then (ensure you're in the folder you downloaded the BIN file and the X4 is the only device attached via USB): esptool.py --chip esp32c3 --baud 460800 write_flash -z 0x0 Launcher-xteink-x4.bin. Or just follow the guidance in the README.md / XTEINK_X4_GUIDE.md / XTEINK_X4_GUIDE.md: https://github.com/juicecultus/Launcher-X4