- Switch nix-deck to use nixpkgs-unstable and unstable home-manager/plasma-manager
- Remove jovian-compat.nix shim (not needed on unstable)
- Add bitwarden-desktop compatibility overlay for stable/unstable coexistence
- Update hardware-configuration.nix with actual Steam Deck hardware detection
- Add 8GB swap file configuration
- Configure AMD CPU microcode updates
This allows nix-deck to work with the latest Jovian-NixOS while keeping other
machines on stable 25.05.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>