One of the highlights of my year at work these past couple years is helping organize The Open Mainframe Project presence at the IBM TechXchange conference. Our event main is held on Monday, during the community or user group day, and every year we’ve been able to make the process more streamlined, make more connections and tie-ins with other groups, and overall make our presence there better. This year was in line with that, with us also getting several sessions scattered throughout the event, booth presence in the Open Source Zone, and more.
Things kicked off on Monday as I worked with Maemalynn of The Linux Foundation to get ready for our full afternoon of Open Mainframe Project talks in two rooms beginning at 1:30PM. I want to start off by saying that I had a wonderful time on the Program Committee this year with Mae, Fernando Rijo Ceden, and Donna Hudi. We have fun together, and everyone brings a unique perspective to the line-up, any one of us missing from the committee this year would have changed the agenda quite a bit. Plus, we were all on top of last minute schedule changes due to speaker cancellations and adjustments that needed to be made. I think this comes from all of us deeply caring about the topic and community, which is so important
Lyz, Mae and Fernando, and I know Donna was with us in spirit even though she couldn’t make it to the event!
One of my favorite things was setting up a “birthday card” to celebrate the 10th anniversary of the project, where we had people write notes and sign their name – and they did! We had great support from speakers too who would remind people to sign it.
Birthday card part one, there was a whole second one!
Our rooms had a great location in the venue, right across from secondary registration at the Hilton. Sarah Julia Kriesch and I gave a talk in the opening time slot to a packed room – a trend that would continue all day. Next year we’ll request bigger rooms! We gave an update on the Linux Distributions Working Group and gave a lot of information about how others can get involved in the mainframe ports of various distributions. You can grab a PDF of our slides here: How_to_Contribute_to_Linux_on_the_Mainframe_-_IBM_TechXchange_2025.pdf
From there I saw Galasa talk from Louisa Denly. I’ve watched the progress of Galasa since before it was an Open Mainframe Project and it was being presented on Terminal Talk, back in early 2021. The induction into The Open Mainframe Project has been a great move to improve visibility to the project and do things like participate in the summer mentorship opportunities run by The Linux Foundation. Louisa’s talk covered some key ways that the project has progressed technically, and it was really great to see.
Then Kathleen Nordstrom of Broadcom gave a talk on “Skill Up! Mainframe Learning for All” where she quickly covered the work of the Mainframe Open Education project. If you haven’t seen their work and are interested, I have really enjoyed going through their Mainframe Open Education GitBook again and seeing how it’s grown (and where it still needs to fill in some gaps!). There’s a ton of free, entry to medium level education out there for folks who are mainframe-curious and this is a great place to start.
A group photo was taken before I found my fellow panelists and headed over to the Open Source track. It meant that I missed the last couple hours of The Open Mainframe Project event, but having additional content in another part of the event expanded our reach that much more, and I was delighted to learn that all the talks were still quite full! My worries of splitting the audience turned out to be unfounded.
Over in the open source track I joined my fellow mainframers, Len Santalucia, Steven Perva, and Louisa Denly, on a panel called “Dispelling the Myths Around Open Source on the Mainframe.” In this panel, we talked about security, support, and contributing, but it was also very audience-driven. One of the thing I learned while on this panel was from an audience member who shared how self-driven the next generation of technologists are, and how they expect to get support from their peers online, and generally expect documentation and other things to be public. This is definitely a departure from what I’ve traditionally seen in the mainframe world, and an interesting evolution in technology in general where open is becoming the default. I think this is doubly true in a world with AI chat bots that you can feed public documentation from and get answers without digging through 300 pages of dense technical documentation.
From there we had three more open source plus mainframe talks in the room. First up was David Frenzel who gave an excellent talk on “COBOL Meets Gradle: Streamlining z/OS Builds with Open Source” where he shared the Gradle plugin they developed for building COBOL applications. This kind of tooling is so important for getting the rest of your organization on board with building mainframe tooling, and consolidating your tech teams. No longer should the mainframe team be separated from the rest of your SREs. Everyone should use open tools like Gradle, just like everyone should use open tools like Grafana! Which leads me to the next talk in the room, David Harris of Grafana joined Anthony Papageorgiou to talk about “Grafana for the mainframe: lifting the lid on the black box”. I really enjoyed this Grafana talk because once again, it’s integrating tooling that the rest of the organization is interested into your IBM z/OS workflows. Taking a step back, you can see what’s going on with ALL of your systems, without the previous silos between operating systems.
The track, and day, concluded with Sarah Julia Kriesch doing a talk fully devoted to The Linux Distributions Working Group where she gave folks in our open source track a tour of the group and how we’re achieving our goals.
But that wasn’t all our content for the IBM TechXchange 2025 conference! The Open Mainframe Project event page has details of other sessions we had scattered throughout the week, and the ones I had the pleasure of attending were great. Over in the User Group Pavilion, Fernando provided an overview of The Open Mainframe Project. Helpfully, it was 1. in the session catalog (unlike our talk last year!) and 2. scheduled right before a SHARE event in the same space, so in addition to the planned attendees, we saw mainframers start to drop in throughout the session, hooray!
I also had the pleasure of seeing Jan Prihoda of Broadcom present “Beyond DevOps: Unlocking New Possibilities with Zowe” at one of the Tech Stages in the expo hall. Integrating so many of the talks into the expo hall was an interesting move, and I thought I’d be really bothered by the noise, but for me I found that the space being gigantic and the use of microphones for the talks made up for most of that. Plus, it was great to just be able to wander through the expo hall and drop in on a talk. For Jan’s, the space was also overflowing, with only a few little cubes to sit on, we had dozens of people standing for his session. It was good too, I’m glad he’s out there promoting the various use cases of Zowe so it doesn’t get tagged as just a DevOps tool. His demonstrations of usage with Ansible in his session were excellent.
Finally, I was really happy to continue my involvement with Michelle Kovac and the Open Source team by scheduling several booth slots over in the Open Source Zone of the expo hall. These 2-hour slots allowed projects to more casually show off their projects and chat with attendees. I was able to grab Mae to do a shift generally on The Open Mainframe Project, where she also took the opportunity to get more notes and signatures on the birthday card! And then both Joe Winchester of Zowe and Louisa of Galasa did shifts for their respective projects.
It was definitely the best year yet for Open Mainframe at TechXchange, and I was able to continue that with the fully open source demos I was showing off at the booth, but that story is for another day!