chore: establish phase 0 baseline

2026-07-18 18:20:34 -04:00
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+# Supported-platform decision record
+
+Version 1 targets x86_64 UEFI and one local gaming user. AMD and NVIDIA are
+release-blocking GPU families; Intel remains best-effort until representative coverage
+exists. The initial bare-metal reference is Ryzen 9 7900X3D plus RTX 5070 installed to
+a dedicated external USB drive. Xbox-family and PlayStation-family controllers require
+USB and Bluetooth coverage; exact revisions are recorded before phase 6 execution.
+
+Legacy BIOS, non-x86 architectures, and multi-user isolation are outside v1.
+