Exactly, every decision is approved by me at the moment and we keep list of approved stacks. Also to be honest I am not that afraid if we keep our micro-servic

Exactly, every decision is approved by me at the moment and we keep list of approved stacks. Also to be honest I am not that afraid if we keep our micro-services really MICRO the worst-case scenario would be rewrite single micro-service - still better than struggling to hire dev team by 3-4 months.