By acknowledging it has become complex, documenting the steps to set it up for others (me being among the others not so far away in time), then automating it.

By acknowledging it has become complex, documenting the steps to set it up for others (me being among the others not so far away in time), then automating it. It's still a slow start. Then you have the getting to understand what to build/correct, what for, who for (that part is the slowest one). Then deployment (somehow slow, but akin to automation like setup above). The production (not slow, but depending on the environment and the history, might be painful). The fun is occasionally in the coding part. But it more surely happens most of the time in the relationships and discussions around it. (speaking for me, not a general case)