Skipbox runs your GitHub Actions jobs on your own Linux VM, kept between jobs, so Docker layers, package caches and installed tools are still there on the next run. Credentials, the workspace and every container are wiped after each job. A flat monthly price with unlimited minutes: $39 for 4 vCPU / 8 GB. Install the GitHub App and change one line to runs-on: skipbox. 7-day free trial, no card. Private repositories only.
痛点：GitHub Actions 官方 runner 又贵又慢，缓存和依赖每次重建，CI 分钟数成本高。
目标用户：使用私有仓库、CI 频繁的中小开发团队和独立开发者。
证据：A flat monthly price with unlimited minutes: $39 for 4 vCPU / 8 GB. ... Docker layers, package caches and installed tools are still there on the next run.
变现：按月订阅（按 vCPU/内存档位定价），或做 BYOC 模式收管理费。
MVP：两周做 BYOC 版：用户在自己的云 VM 上装 agent，通过 GitHub App 一键注册 self-hosted runner，持久化缓存目录，job 后清理 workspace 和凭证，改一行 runs-on 即可切换；先不做多租户隔离。
竞品：Blacksmith、Depot、Namespace、Actuated、RunsOn、Ubicloud
摘要：Product Hunt 上线 Skipbox，$39/月提供 4 vCPU/8GB 不限分钟，复用 VM 保留 Docker 层和包缓存，任务后擦除凭证与容器，仅支持私有仓库。热度为 0 票，没有用户付费证言，但 CI 降本赛道已有多个付费竞品，说明需求真实且竞争激烈。