The Aster project's engineering arm
Built to be operated.
AsterCosmos is the engineering home of Aster projects.
Built for systems that need to run, evolve, and be maintained. AsterCosmos is a peer organization to ESAP, sharing membership while keeping engineering work in its own public space.
Creative archives? That's ESAP — our peer organization.
How we fit togetherFeatured system
AsterDrive — self-hosted file infrastructure
Reliable uploads, storage policies across S3 and remote-node backends, WebDAV/WOPI, and first-class ops tooling. The reference for how AsterCosmos builds and runs software.


Entry points
Projects
Running systems, engineering foundations, and the sites that present them.
Browse the indexPhilosophy
Products are running systems, and the path from code to maintenance stays visible.
How we buildArchive
ESAP remains beside AsterCosmos, not underneath it — shared membership, separate identities.
The other half