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Ryan Yin
4470b3d014
Move standalone repository docs from the root into docs/ and add a documentation index that links the moved docs and the code-local runbooks. Update Markdown links, source comments, and the root entry points to the new locations. Keep README.md and AGENTS.md at the root as required entry points. Assisted-by: DeepSeek Harness (deepseek-flash)
34 lines
1.8 KiB
Markdown
34 lines
1.8 KiB
Markdown
# Host - Shoukei
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This is NixOS's configuration for my Macbook Pro 2022 M2, 16G RAM.
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This laptop joins untrusted networks and uses DHCP by default. On the home Wi-Fi
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(`shadow_light_ryan`) run `just shoukei-home-wifi` to pin `192.168.5.108`; the recipe calls
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[`scripts/shoukei-home-wifi-static.nu`](../../scripts/shoukei-home-wifi-static.nu), and
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`vars/networking.nix` records the address with `homeOnly = true`.
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## x86/x86_64 applications
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The M2 uses 16 KiB pages, and FEX does not emulate 4 KiB guest pages, so x86/x86_64 binaries cannot
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run directly on this kernel. [`game/`](./game/default.nix) enables `programs.x86-on-arm` from
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[our fork](https://github.com/ryan4yin/nix-x86-on-aarch64) of
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[rowanG077/nix-x86-on-aarch64](https://github.com/rowanG077/nix-x86-on-aarch64), which runs FEX
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inside a 4 KiB `muvm` microVM and registers both ELF handlers:
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- run an x86/x86_64 ELF directly, or use `x86-arm run <program>`;
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- `nix-shell -p x86pkgs.hello --run hello` for the x86 package set;
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- `steam` and `x86-arm-wine` for games and Windows programs.
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The microVM is capped at 6 GiB (`memoryMiB`) on this 16 GiB machine, and needs `/dev/kvm` plus a
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running systemd user session. See [WORKAROUNDS.md](../../docs/WORKAROUNDS.md) WA-021.
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Because the host no longer registers qemu-user binfmt, `podman run --platform=linux/amd64`, x86
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chroots, and local builds of uncached x86 derivations need a remote x86_64 builder (see
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[WORKAROUNDS.md](../../docs/WORKAROUNDS.md) WA-022).
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Related:
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- [M2 Series Feature Support - Asahi Linux](https://asahilinux.org/docs/platform/feature-support/m2/)
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- [nixos-installer/README.shoukei.md](../../nixos-installer/README.shoukei.md)
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- [nixos-apple-silicon - UEFI Boot Standalone NixOS](https://github.com/nix-community/nixos-apple-silicon/blob/main/docs/uefi-standalone.md)
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