the latest release as of Thursday, 2019/03/28 =^)
https://etsh.nl/src/etsh_5.4.0/ has everything a person might need/want to get started with etsh-5.4.0; other useful files include:
... Also, there is a screenshot below this paragraph (see caption); I built and installed it using PREFIX=/usr/local/etlocal so that it doesn't clobber the previous release of etsh-5.3.1; the shells/etsh OpenBSD package/port installs using PREFIX=/usr/local and SYSCONFDIR=/etc by default.
caption: etsh-5.4.0 running as an interactive login shell and executing the
pev script for fun
— Jeff ( for short )