Repack OTA payload.bin for Android

I need help to repack the payload.bin for an Android 10 embedded system after modifying the product.img partition.

Requirements:
- Repack payload.bin
- Include payload_properties and metadata
- Standard Android OTA format

Ideal Skills:
- Experience with Android OTA updates
- Familiarity with payload.bin structure
- Knowledge of image partition modifications

i have an OTA update files for empdeded android system 10
i need to modify the payload.bin
i unpack the payload.bin and modfiy the img parthions and i need now repack the payload.bin with payload_propiritres and metadata ?



Looking for a freelancer who can ensure the integrity and functionality of the OTA update.
Thank