edk2-msm UEFI A/B Installer Zip Template
Forked and modified from twrp_abtemplate by osm0sis.
Put a prebuilt UEFI fd file with BootShim and Padding from edk2-msm named *_UEFI-Padding.fd under this folder and pack as a Zip file.
Flash the packed Zip file using TWRP or Magisk Manager.