Hi Sathvik. This is a shot in the dark, but I've had* issues building

grpcio

on M1 with pants. I had to add

[subprocess-environment]
env_vars = [
  'GRPC_PYTHON_BUILD_SYSTEM_OPENSSL=TRUE',
  'GRPC_PYTHON_BUILD_SYSTEM_ZLIB=1',
  'GRPC_BUILD_WITH_BORING_SSL_ASM=',
]

to my

pants.toml