When mission critical parts, tools, or infrastructure is moved to "the cloud" (aka computers owned by someone else that you do not control) - often replacing in

When mission critical parts, tools, or infrastructure is moved to "the cloud" (aka computers owned by someone else that you do not control) - often replacing in-house tools with a SaaSS[1] - a second source[2] is rarely discussed as a requirement. The "cloud" doesn't magically solve path dependency. [1] https://www.gnu.org/philosophy/who-does-that-server-really-serve.en.html https://www.gnu.org/philosophy/who-does-that-server-really-s... [2] https://en.wikipedia.org/wiki/Second_source https://en.wikipedia.org/wiki/Second_source edit: my father once mentioned that when he was working at Honneywell in Minneapolis (making home automation in the 80s), some of the engineers frequented a local bar called literally "The Second Source". "Sorry boss, I'm busy this afternoon - I have a meeting at the second source!"