Today? TailScale and stuff like that.
You can just noT have a bunch of pointless micro services and docker in your runc and layer on layer of json de/re, and unit test to get coverage but ignore quickcheck and hypothesis and fuzzing.
You can use stacked diffs and run oncall loops out of the team authoring the code and all of it.
You can minimize dynamic linking and all the other forms of unforced dependency error.
You can understand and play towards the runtimes of all the managed languages in your stack. You can insist that a halfway decent verbal grammar for the languages is “readability”.
It gets shouted down over and over but it’s public knowledge how to ship quality software.