Platforms
OS⁴ is built on FreeBSD and supports x86_64 and AArch64 architectures. The Harmonia stack compiles natively on each target.
Architecture Matrix
| Architecture | Hardware Examples |
|---|---|
| x86_64 / amd64 | Standard PCs, servers, cloud VMs |
| AArch64 / ARM64 | Raspberry Pi, server-class ARM, embedded boards |
Constrained Runtimes
Constrained runtimes run a subset of the Harmonia stack — orchestration and key capabilities, without full OS-level integration.
| Platform | Notes |
|---|---|
| iOS | Harmonia as embedded framework |
| Android | Harmonia as native library |
| OpenXR | VR/AR agent runtime |
Cross-Architecture Evolution
Agents on different architectures share genomic evolution through Git:
- Genomic layer (S-expressions) — architecture-neutral source code, pushed to Git daily
- Epigenetic layer (runtime state) — architecture-specific snapshots, backed up to persistent storage hourly
Each agent recompiles locally for its target. An improvement discovered on x86 can propagate to ARM agents automatically.
Next Steps
- Self-Improvement — genomic/epigenetic sync details
- Getting Started — download and boot OS⁴
- What is OS⁴ — why a dedicated agent OS