How can we cache this time-consuming step?

[realtebo]

Thanks for this action !

I kindly ask you to document IF and HOW could we actually cache this step to avoid this time-consuming step, or reduce it a bit

[mtio]

Would also be nice if we could cache the .build artifacts to further reduce build times on subsequent runs.
Relates to #103 ?

[realtebo]

Please reply.
Also a 'no' is usefull