A new codebase is like getting a huge mechanical horse dick dildo.
The first day you get it, you want to jump right in and jam it all inside you. But don't know what you're doing and you end up tearing yourself open and bruising your internal organs. You spend some time in hospital and have to tell everyone you were having your appendix removed.
This is a companion discussion topic for the original entry at https://sbox.facepunch.com/news/new-engine