There you have it!

Meaning

This is a concluding remark used to signal that an explanation or task is finally finished. It implies that everything that needed to be said or done has been covered.

Definitive, satisfied

Used in a sentence

• And that is how you fix a leaky faucet, so there you have it.
• I just added the final line of code and checked the debug, so there you have it.
• I have explained why we are choosing this contractor, and there you have it.