With the v2beta0 release td2 is feature complete, but not fully tested and still needs documentation. We plan to have docker images and binary builds available soon, but until then you can run:
git clone https://github.com/blockpane/tenderduty
cd tenderduty
git checkout v2beta0
cp example-config.yml config.yml
# edit config.yml
go get ./...
go install
~/go/bin/tenderduty