Here is a simple deployment routine, for a reliable and smooth release :-)...
Work expands so as to fill the time available for its completion
In other words, if you have a certain amount of time to complete something, that’s how long it will generally take.
Anything that can go wrong, will go wrong (at the worst possible time)
Most ideas look great on paper. But by the time events go from A all the way through the alphabet to Z, you see who rules when it comes to getting something from the theoritical stage to the practical stage : it's Murphy's Law.
No battle plan survives first contact with the enemy. Hope for the best, be ready for the worst....