Buildfarm vs FosterStack
Buildfarm
buildfarm.github.ioFosterStack
fosterstack.comSide by side
| Figure | Buildfarm | FosterStack |
|---|---|---|
| Price from | — | $41.58/mo |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| macOS | — | Yes |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 0 | 4 |
| Spec score · Build Cache Software | 7.8 (#11) | 7.9 (#10) |
| Deployment | The project documents running Buildfarm server and worker processes, using containers for a minimal cluster, and installing an OCI bundled Helm chart. | The product is self-hosted and can be run from a Docker image or as a static binary. |
| Metrics | The quick start documents a Prometheus metrics endpoint configurable for the server and worker. | It exposes Prometheus metrics and provides a read-only status page with hit rates and cache size versus cap. |
| Product | Buildfarm is a software stack implementing the Remote Execution API for remote content storage, action-result caching, and asynchronous action execution. | FosterStack is a self-hosted remote build cache server intended as a replacement for Develocity Build Cache Node. |
| Security | The authentication guide describes configuring client/server authentication with self-signed TLS certificates. | The core is MIT-licensed, releases include signed artifacts and SLSA provenance, and security patches are included in the free tier. |
| Support | The project repository directs users to file bugs or feature requests as issues and ask questions in the build team Slack channel. | Bugs and questions can be reported through GitHub issues; the listed paid tiers describe email and priority support but are not yet available. |
Plans
In their own words
Buildfarm
Buildfarm has no write-up on Specifiction yet; its figures are above.
FosterStack
FosterStack is a self-hosted remote build cache server intended as a replacement for Develocity Build Cache Node. It supports Gradle and the Apache Maven Build Cache Extension remote HTTP mode, although Maven acceptance coverage is in progress. Size-capped LRU eviction frees space for new entries. HTTP Basic Auth over TLS uses constant-time credential comparison, and credentials are not logged. Prometheus metrics and a read-only status page report hit rates and cache size against its cap. Deployment options are a Docker image or static binary; release binaries are available for Linux and macOS on amd64 and arm64. Windows is not built or planned. The MIT-licensed core has signed releases with SLSA provenance, and security patches are included in the free tier. The maker says the free core makes no outbound connections and collects no telemetry or usage data. FosterStack identifies the product as v0.1 and says nobody outside its own work is yet running it in a production build pipeline. The full self-hosted server is free. Team, Business, and Compliance plans are described but not yet available, with listed prices of $49.00 per month, $199.00 per month, and $499.00 per year, respectively.