[yocto] TEMPLATECONF for multiple devices

[skorpyon1992]

      Hello everyone,

      I started to build linux distributions for different devices and I 
would like to write some scripts that automatically clones git 
repositories  (poky, necessary layers, etc) and build the final image 
for the desired device. The configuration templates (provided from my 
custom layer) are the same for all devices except the MACHINE variable.
  Until now, for testing, I have manually set the TEMPLATECONF path 
(export TEMPLATECONF= path-to-my-layer/meta-mylayer/conf source 
poky/oe-init-build-env build-mydevice) and modified the local.conf with 
the correspondant  MACHINE name before creating any image.

   What would it be the best practice to minimize the configuration 
part? Use the same template configurations and modify the variables (in 
this case the MACHINE variable) after? Or have separate template 
configurations for each device inside my layer?

     Thanks in advance!