# Summary

- [Introduction](01_introduction.md)
- [Quick Start](02_quick_start.md)
- [Task Placement and !Send Execution](03_runtime_model.md)
- [Runtime Internals](04_runtime_internals.md)
- [Runtime Entry and Builder Configuration](05_runtime_entry.md)
- [Time and Cancellation](06_time_and_cancellation.md)
- [Boundary APIs](07_boundary_apis.md)
- [I/O API Layers and Selection](08_io_apis.md)
- [Companion Protocol Crates (TLS/WS/QUIC/Process/Signal)](09_protocol_crates.md)
- [Stability Policy](10_stability_policy.md)
- [Extending Spargio with Custom io_uring Opcodes](11_native_extensions.md)
- [Performance Guide](12_performance_guide.md)
- [Operations Guide](13_operations_guide.md)
- [Migration Guide](14_migration_guide.md)
- [Status and Roadmap](15_status_and_roadmap.md)
