Runner

A Runner is where tasks actually execute. Celebi separates the definition of work (tasks) from the place it runs, so the same workflow can move between environments without changes.

Backends

Local — run on your own machine, the default for development.
Batch / remote — submit to a computing cluster or remote resource (HTCondor, Slurm — see the roadmap).

Runners are managed from the CLI and from the desktop UI, where you can watch job status live while tasks run.