Steps

Setup a pgp key
Set up settings.xml
Make sure pom version is right (no -SNAPSHOT)
Commit and push to github
mvn clean deploy -Dmaven.test.skip -P public-release
Release the deployment from Nexus
Tag the release and push to github
Increment the pom version with -SNAPSHOT
Commit and push to github

Known issues

Inappropriate ioctl for device
```
> GPG_TTY=$(tty)
> export GPG_TTY
```