(it's) all systems go

everything is ready for something to begin.

Once the new software is installed, it's all systems go.

• nothing less than something
• nothing much
• nothing short of
• nothing short of something
• nothing to do with
• nothing to it
• nothing to sneeze at
• nothing to write home about
• Nothing ventured, nothing gained.
• not hold breath
• not hold liquor
• not hold water
• not hold your breath
• not hold your liquor
• not hurt a fly
• not if can help it
• not if you can help it
• not in a month of Sundays
• not in my wildest dreams
• not in the business of
• not in the business of doing something
• not in the least
• not in the same league
• not in the slightest
• not judge a book by its cover