Please see the main repository of the Nimbus beacon chain for detailed instructions for building and running Nimbus: https://github.com/status-im/nimbus-eth2
Here is a short list of commands that can be used to connect to any of the testnets published here:
git clone https://github.com/status-im/nimbus-eth2
cd nimbus-eth2
make # This invocation will bootstrap the build system with additional Makefiles
make testnet0 # This will build Nimbus and all other dependencies
# and connect you to testnet0
Use make testnet0
to rebuild and reconnect with an existing installation.
./connect-to-testnet testnet0
will also reset your testnet data to pristine state.