Deep expertise, not a big bench.
The Practice
What Muselab is today
We give Salesforce teams standing access to expertise that is too specialized to hire full-time and too nuanced for AI to fake: CumulusCI, packaging, GitHub-native delivery, External Client Apps and OAuth, agentic delivery, and platform integration.
And we are building Busbar, the platform that productizes the Composable Delivery Model. The open-source tools that came out of our work are still used across the ecosystem. Muselab is where that experience is now available directly: as a retained practice for the teams who need it, and as the products built on top of Busbar.
Founder
Jason Lantz
Creator of CumulusCI and MetaCI. Builder of the Cumulus Suite at Salesforce.org.
I left Salesforce in 2022 to found Muselab, starting by working on 6-month engagements with ISV partners looking to run their development-to-delivery lifecycle on GitHub. Those engagements, while successful, revealed the delivery gap that exists even with GitHub and tools like CumulusCI. That gap is the inspiration for creating Busbar.
Before founding Muselab, I spent 8+ years at Salesforce.org then Industries building the systems that power composable delivery for the nonprofit and education sectors. I built and led the Release Engineering team that shipped our managed packages with automated weekly push-upgrades across the entire install base.
I created CumulusCI and MetaCI, then built and led the team that grew them into the Cumulus Suite, including Snowfakery, MetaDeploy, and Metecho. Those tools are still used across Salesforce and the broader ecosystem, and they represent a decade of learning about what it takes to deliver software at scale on the platform.
Extended Profile
A decade building delivery at scale
Track record
- Created CumulusCI and MetaCI, now part of the CI/CD backbone used across the ISV ecosystem.
- Built and led Release Engineering at Salesforce.org for the Nonprofit and Education clouds.
- Grew the team and tooling into the Cumulus Suite: Snowfakery, MetaDeploy, and Metecho.
- Shipped managed packages with automated weekly push-upgrades across the entire install base.
- 14+ years of CumulusCI in the open, still maintained today.
The Cumulus Suite
I created CumulusCI and MetaCI; my team built the rest.
The Name
Why "Muselab"?
25 years ago, Muselab was going to be a rehearsal space. Every room wired to a central recording studio, so bands could rehearse and record in the same session.
The insight: creative work happens in the moment. If you don't capture it as it happens, you lose it. Technology should serve that capture, not interrupt it.
That rehearsal space never got built, but the vision evolved. Today, a "Lab" is still that creative space, where builders create and their context gets captured. Different medium, same principle.
It's the same principle behind Busbar: capture the delivery knowledge as the work happens, then compose it into reusable modules instead of losing it in someone's head.
Create
Capture
Compose
From captured context, synthesize new forms
Ready to transform your delivery?
Let's talk about what you're building and how we can help you own it.