Independent software · open source
We build software worth keeping.
Coopanio builds useful software, contributes to open source and offers focused engineering services. Led by Dario Castañé, author of Mergo.
Code you can inspect.
Independent projects, with status and provenance made clear.
The person behind the work
Dario Castañé
Software engineer, open-source maintainer and founder of Coopanio. Dario created Mergo in 2013. His projects reflect that hands-on experience.
Personal site (external link) · Professional background on LinkedIn (external link)
Small tools. Long useful lives.
We prefer software with a clear purpose, understandable code and a life beyond its first release. That shapes our own projects, our open-source contributions and the engineering work we take on.
Projects in the open.
Useful tools, public code and engineering decisions you can inspect.
Stable / feature-frozen v1
Mergo
Its README lists containerd, Docker CLI, Grafana Loki and Moby among downstream projects. These are library users, not a Coopanio client list.
3,109 GitHub stars
Checked 8 Oct 2026 Coopanio project
Public source
Asembleo
Pseudonymous voting software for general assemblies. Source and setup notes are public; no hosted-service or ongoing support commitment is implied.
Experimental
corb
Run Pi inside a restricted micro-VM, with configurable filesystem and network access. Explore the tool, its documentation and source at corb.ax.
Linux / macOS
Engineering, when you need it.
Alongside our own software, we offer focused Go engineering: scoped upgrades, dependency work and security triage, with clear deliverables.