FAQ: How do I get etsh-current?
You can get etsh-current, and update the etsh sources you already got, by using cvs(1). You would do the following to get / checkout an initial etsh-current (v6shell) source tree:
cvs -qd email@example.com:/cvs \ checkout v6shell
cd v6shell, and go for it!
SSH fingerprint: (ECDSA) SHA256:Qs6vB2EJHP0oRQFuwhktmcjuaRA+pqTdaFuf1QSSH6M