AI agents' PR flood pushed this team from GitHub runners to on-prem CI

peterjliu · x · 2026-09-28

peterjliu reports their AI agents generate so many PRs that CI costs spiraled: they moved off GitHub runners to GCP Kubernetes, then to on-prem. With software maintenance costs now near zero, the calculus is just hardware + electricity—owned machines pay back in about a month versus cloud rental.

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