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Let the shared LAN discovery module use each host's Wi-Fi interface instead of assuming kusanagi's wlp8s0 everywhere. Set kusanagi to wlp8s0 and enzo to wlp1s0.
Reuse the same setting for kusanagi's Ollama LAN firewall rule so the service opening stays tied to the declared LAN interface.
Assisted-by: OpenAI:gpt-5
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Bind Ollama on all interfaces but open its API only on kusanagi's Wi-Fi interface, so LAN clients can reach it without relying on Tailscale exposure.
Remove the blanket tailscale0 trust from the shared firewall so tailnet traffic follows explicit host firewall rules instead of inheriting access to every listening service.
Assisted-by: OpenAI:gpt-5
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The 12B model at 32k context uses only 7.7 GB of the 7900 XT's 20 GB, so
there is ample VRAM headroom for 64k with the q8_0 KV cache — agentic
coding tools are context-hungry and 32k is the practical bottleneck.
The keep-alive stops the default 5-minute idle unload from adding a
reload stall to every resumed session on a single-user workstation.
Update flake to get newer packages.
Assisted-by: Claude Code:claude-fable-5
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The recurring "ollama runs 100% on CPU" regressions were a boot-order
race, not a gfx-target mismatch: ollama.service only ordered after
network.target, and at boot it started between /dev/kfd and the 7900
XT's render node appearing. ollama probes GPUs once at startup, found
none, and silently fell back to CPU until the next manual restart —
which is why the previous HSA_OVERRIDE_GFX_VERSION commit "worked": the
deploy restarted the service on a long-running system, and the restart
was the actual cure.
The card is a 7900 XT (Navi 31), natively gfx1100 — verified that
discovery with no overrides finds it fine and drops only the
unsupported Raphael iGPU (gfx1036). Remove HSA_OVERRIDE_GFX_VERSION and
HIP_VISIBLE_DEVICES (ollama itself warns overriding visible devices can
break discovery).
Real fix: systemd-tag the kfd/renderD* char devices via udev (they get
no device units otherwise) and order ollama after them, so discovery
only runs once the GPU exists.
Assisted-by: claude-code:claude-fable-5
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Move the yokai agent-sandbox account (user, ikai group, /srv/git drop dir,
scoped sudo de-escalation, and the local-clones workflow docs) out of
machines/enzo into a shared profiles/sandbox.nix that both machines import.
The only per-machine value is the human owner allowed to drop into the
sandbox, exposed as a `sandbox.owner` string option so the profile stays
username-agnostic (enzo: hwebs, kusanagi: henz). kusanagi gains the sandbox
it didn't have before; enzo's inline block collapses to one setting.
Assisted-by: claude-code:claude-opus-4-8
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The RDNA3 card reports as gfx1101/gfx1102/gfx11-generic, which the ROCm
build bundled with ollama-rocm has no kernels for, so ollama found no
usable device and ran 100% on CPU after the nixpkgs bump. Force it to
present as gfx1100 via HSA_OVERRIDE_GFX_VERSION.
Also set OLLAMA_FLASH_ATTENTION=1 so the existing q8_0 KV cache actually
engages instead of silently falling back to f16 and inflating VRAM use.
Assisted-by: Claude-code:Opus-4.8
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- replace x-clip with wl-clipboard for wayland machines
- add TODOs I noticed while editing
Assisted-by: Claude Code:claude-opus-4-8
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Assisted-by: Claude:Opus-4.8
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Bare niri has no power daemon watching for inactivity, so neither box
slept on its own. Add a user swayidle service bound to
graphical-session.target that fires after 15 min of no input:
- enzo: suspend-then-hibernate (matches the existing lid-switch policy)
- kusanagi: plain suspend-to-RAM, plus Wake-on-LAN on enp9s0 so it can
be woken remotely while the Kavita/Immich/Ollama/NFS servers sleep
Assisted-by: Claude:claude-opus-4-8
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profiles/desktop.nix becomes a username-agnostic shared base (niri, dconf, the
dark-theme portal fix, greetd, pipewire base, gpg agent, graphics, Firefox with
blank-home/no-bookmarks prefs, common desktop tools, font base). Both hosts now
import it.
Per-host desktop config splits into machines/<host>/desktop.nix:
- enzo: Adwaita cursor + monospace, HiDPI console font, yambar, hwebs groups.
- kusanagi (new file): GNOME/X11, printing/avahi/udisks2, pro-audio
(rtkit/jack/32-bit), gpg ssh support, richer fonts, Bibata cursor, henz
desktop groups, waybar/nm-applet.
Shared profile is username-agnostic (enzo=hwebs, kusanagi=henz): shared desktop
tools moved to environment.systemPackages, per-user groups stay in machine
files. Firefox now owned by the shared profile, so its redundant enable is
dropped from profiles/apps.nix. Dark theme + Firefox tweaks now apply to both
hosts. Both configurations build.
Assisted-by: Claude:claude-opus-4-8
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Split the single-host config into a shared minimal base plus opt-in
profiles, and add a second machine (enzo laptop) alongside kusanagi.
- flake: add mkMachine helper; declare nixosConfigurations.kusanagi and
.enzo; add the disko input; move overlays per-machine.
- common/: minimal base only (boot, networking, tailscale, locale, nix
settings, neovim editor). Old configuration.nix/programs.nix removed.
- profiles/: coarse opt-in bundles (desktop, dev, apps). kusanagi imports
all three and stays byte-for-byte identical to the running system.
- machines/kusanagi/: all workstation-only config (ROCm, Scarlett audio,
optical-disc archiving, NAS mounts, kavita/immich/ollama); hardware
config moved here unchanged. User stays 'henz'.
- machines/enzo/: new laptop. Declarative LUKS+btrfs via disko
(LVM-on-LUKS, TPM2+PIN unlock, zram + encrypted swap for
suspend-then-hibernate); its own minimal niri desktop with
playback-only audio (no rtkit/jack); user 'hwebs'.
Assisted-by: Claude:claude-opus-4-8
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