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  Self-Hosted Runners: Complete Guide to Custom GitHub Actions Execution 📅 Published: July 2026 ⏱️ Estimated Reading Time: 20 minutes 🏷️ Tags: GitHub Actions, Self-Hosted Runners, CI/CD, DevOps, Infrastructure Introduction: What is a Self-Hosted Runner? A self-hosted runner is a system that you deploy and manage to execute GitHub Actions workflows on your own infrastructure. Instead of using GitHub's managed runners, you run the runner application on your own machines—physical servers, virtual machines, cloud instances, or containers . Why self-hosted runners matter: Cost savings : No per-minute charges for GitHub Actions (you pay only for your infrastructure)  Custom hardware : Use specific CPU architectures, GPUs, or large memory configurations  Private network access : Connect to internal databases, APIs, and services  Custom software : Install proprietary tools and specific software versions  No job time limits : Jobs can run as long as needed  Contro...