If you are looking for open source software available in Linux on Z (IBM Z or LinuxONE) this catalog points you to where to download, build instructions, scripts and other recommendation. The IBM Z Ecosystem team has ported and/or validated this large list.
http://www.ibm.com/community/z/open-source-software/
For even a larger list of open source software available on Z (more than 4,000) go to Docker Hub https://hub.docker.com/search?q=&type=image&architecture=s390x
------------------------------
Javier Perez
------------------------------