PLX

v0.1 (arm64 Raspberry Pi 3-4)	source image (2.2G)	digest	signature
v0.1 (arm64 Raspberry Pi 3-4)	binary image (2.6G)	digest	signature

Assuming /dev/sdx is an SD card with at least 64 GiB of capacity, you can install the image using:

xzcat plx*.img.xz | sudo dd of=/dev/sdx bs=1M status=progress

Then insert the card into your Raspberry Pi and boot.