To get the binary just download the latest release for your OS/Arch from the release page and put the binary somewhere convenient. lego does not assume anything about the location you run it from.

From Docker

docker run goacme/lego -h

From package managers

yay -S lego

Note: only the package manager for Arch Linux is officially supported by the lego team.

cd /usr/ports/security/lego && make install clean


pkg install lego

From sources


  • go v1.15+
  • environment variable: GO111MODULE=on

To install the latest development version from sources, just run:

go get -u


git clone
make        # tests + doc + build
make build  # only build