“Works on my machine” Depend on external services, die by external services. If you can’t afford redundancy, then you must accept downtime. I build all of my

“Works on my machine” Depend on external services, die by external services. If you can’t afford redundancy, then you must accept downtime. I build all of my dependent libraries locally and bundle with my app. For one application, I maintain and build the entire OS from source. I depend on aws,azure cloud storage for my own hosted cdn. I can fail back to my own hosts if necessary.