It's the end of an era
It feels to us like the end of an era: On April 7, 2025, We officially unplugged Cauldron.io’s servers, the physical home where Cauldron.io used to reside. The metal and wires that kept it humming since way back in May 2015 are humming no more.
For those who remember, Cauldron.io started life as our attempt to build a super user-friendly SaaS solution for digging into open source project metrics. We wanted to make it easy for everyone to get meaningful insights, and we were thrilled by all the folks who used it over the years. A big shout-out to that amazing community – your support has been truly invaluable!
We gave the paid version, Cauldron Cloud, a fond farewell back in 2023. Cauldron.io stuck around as a free service with a loyal following until we sunsetted the project in January this year. It was time to focus our energy on other exciting endeavors. And now, the specific spot it occupied for its decade-long life is vacant.
But before we drag out this heartfelt eulogy as we lay the servers to rest, let’s remember what Cauldron truly was: open source through and through!
The code lives!
Just because we’re no longer keeping the lights on in its old physical place doesn’t mean Cauldron is gone for good. Nope! Its spirit, in the form of beautifully crafted code, is still hanging out on GitLab, ready for a new adventure.
If you ever thought, “That Cauldron thing was pretty neat,” then remember: you have the power! The entire codebase is right here, waiting for you to tinker, tweak, and maybe even bring it back to its former glory (or something even cooler!).
https://gitlab.com/cauldronio/cauldron
Red Hat, for example, has a public Cauldron instance: http://cauldron.osci.io/. However, this too may not be around forever and you might be better off self-hosting Cauldron.
And our journey with Cauldron wasn’t for nothing! It taught us a ton and directly influenced what we’re doing now with Bitergia Analytics. Building Cauldron helped us to experiment with technology like OpenSearch (which became very important when Elasticsearch changed its licensing!), to figure out how to handle a huge number of repositories (a lesson we’re pouring into the upcoming GrimoireLab 2.0!), and to really nail down how to make complex data visualizations that don’t make your eyes cross.
Farewell, Cauldron.io
This isn’t necessarily a sad farewell. It’s more of a “see you later… maybe!” We’re proud of Cauldron’s open-source roots, and we’re excited to see what the future might hold, even if we’re not the ones directly hosting the party anymore. The spirit of open collaboration is alive and well. Who knows? Maybe Cauldron will rise again in a new and exciting form!
In the meantime, we’re keeping busy helping folks in the automotive industry with delivery performance analytics (https://bitergiacom.wpcomstaging.com/delivery-performance-analytics/) and providing our Bitergia Radar services for managing open source dependencies (https://bitergiacom.wpcomstaging.com/radar-service/). We’re still all about open source and the power of data!
Thanks again to everyone who was a part of the Cauldron.io story. Onwards to new adventures!
