# Local network with Flextesa

You can start a Flextesa sandbox using Factori. This is very useful because you can make it as fast as one block per second; moreover, you have full access to an alice account with a large amount of funds (every generated SDK knows how to use this account). Run

factori sandbox start


to start it, and

factori sandbox stop


to stop it.

There is a --block-interval option which will set the number of seconds between blocks (default is 1).

You can monitor your Flextesa sandbox visually using Explorus.