systemd-tmpfiles-setup only orders itself after local-fs.target, but the nofail /data submounts can complete later. It then sees /data as the read-only fallback tmpfs and fails to create the Transmission, Immich, RustFS and restic directories at boot.
Add RequiresMountsFor for the data mounts and cover the generated unit dependency with an eval test.
nixpkgs' transmission 4.1.4 profile grants rw on the daemon's config directory
but not k, while 4.1.4 takes a fcntl lock on
~/.config/transmission-daemon/lock, so the daemon exited at startup with
"Another process is already using". Include rwk for that one file only.
WA-044, drop once the nixpkgs profile carries the permission.
Assisted-by: Claude Code (claude-opus-5-5)
NixOS copies mode-carrying /etc entries such as authorized_keys.d during
stage-2 activation, which runs before systemd starts. preservation mounted the
persisted /etc/ssh from preservation.target afterwards and hid that copy, so a
key change only took effect on `switch`: revoking a key and rebooting silently
restored the old one.
Prepare the mount in initrd, before activation runs, and cover it with a VM
test that seeds a stale authorized_keys file, reboots, and asserts the declared
key replaced it. The same test fails on that assertion with inInitrd disabled.
Verified on all four hosts: /persistent/etc/ssh/authorized_keys.d/root is now
rewritten at boot instead of keeping the timestamp of the last switch.
Assisted-by: Claude Code (claude-opus-5-5)
The homelab hosts accept root SSH with long-lived file keys, run several
exposed services with almost no systemd sandboxing, and keep no audit trail of
privileged actions. Close those three gaps, weighing each measure against its
cost instead of adopting a policy wholesale.
SSH
- Turn off KbdInteractiveAuthentication: nixpkgs defaults it to true and PAM
then still accepts the Unix password despite PasswordAuthentication = false.
- authorizedKeysInHomedir = false: only keys declared in Nix take effect;
youko keeps Gitea's forced-command file through `Match User gitea`.
- Pin aquamarine's passphrase-free remote-builder keys to
`restrict,command="nix-daemon --stdio --store daemon"`, so builds run in the
system daemon instead of an audited root login session.
systemd sandboxing
- Add the mylib.systemdHardening preset and apply it to the exposed, weakly
sandboxed services: caddy 7.8 -> 1.5, vmalert 8.2 -> 1.4, rustfs 6.6 -> 1.4,
whisper-asr 7.7 -> 1.6. An eval test pins the key restrictions.
- Rejected: a global all-keys policy (<=0.2 score gains on services nixpkgs
already sandboxes) and per-service confinement (bind paths to maintain).
auditd on all four hosts, reusing nixpkgs' loader and unit
- Audit login sessions only: a first `-a never,task -F auid=unset` rule keeps
services out of the per-syscall audit path. A compromised service is
therefore unrecorded until it opens a session.
- Record root commands, credential and host-key access, writes to SSH, account,
PAM, Nix-trust and audit configuration, module loads and session denials.
- Rejected: global denial logging, service-UID watches and
--loginuid-immutable (the kernel already records loginuid changes).
Verified on all four hosts after deployment: zero failed units, k3s 6/6 Ready,
and the exposed services healthy.
Assisted-by: Claude Code (claude-opus-5-5)
Turn on adaptive sync at the output only when a game window opts in, keeping desktop compositing fixed-rate to avoid idle/low-load VRR flicker. The Steam/Proton game rule enables VRR alongside the fullscreen rule.
Assisted-by: DeepSeek Harness (deepseek-flash)
* chore(nix): update nixpkgs to e62746b and fix 26.11 breakage
Bump nixpkgs to e62746b and preservation to 00be7f7, then adapt to the removals and renamed options in the new revision: drop the removed boot.initrd.systemd.enable settings, trim the stale emSign CA blacklist on Linux while keeping it for the older Darwin input, and migrate Avahi publishing to settings.publish. Work around sunshine still setting the legacy Avahi options and keep dsh-nu on its tested Nushell 0.115.1. Patch NUR dsh's pnpm call to pass nodejs = null, and update pyclipsync for the stdenv.hostPlatform.system rename.
* chore(nix): refresh flake inputs for 26.11
- update nixpkgs-darwin to the same e62746b revision as nixpkgs
- make dsh-nu follow main nixpkgs and patch its testedWith manifest for the resolved Nushell
- refresh floating inputs; update lanzaboote, tuios, and ponytail
- drop the nixpkgs-2505 and rust-overlay workarounds
- keep pyclipsync on main and simplify the cross-platform CA blacklist
- adopt home-manager's Nushell loadSessionVariables default
* fix(gitea): use ROOT_URL for nixpkgs 26.11
nixpkgs removed the legacy settings.server.DOMAIN option; the existing ROOT_URL already carries the public URL.
* chore(nix): update dsh-nu to 0.7.0
Assisted-by: DeepSeek Harness (deepseek-flash)
Update the mysecrets lock to 7f93490, which renames secrets.nix to agenix-rules.nix, drops the deprecated ./ key prefixes for agenix 0.18, and re-encrypts the access-token secret. Update the docs and agenix skill to the new filename and path convention.
The 2026-10-22 audit found the live socket on *:9835: #373 bound
node/smartctl in monitoring.nix, but the nvidia exporter enabled in
hardware-nvidia.nix kept the nixpkgs default, so the socket-level
defence-in-depth layer never existed for 9835.
Extend the security-exporters eval check to every enabled exporter's
listenAddress so a future exporter without a bind fails the test.
Assisted-by: DeepSeek Harness (gpt-6-astra)
The backup unit publishes `restic_backup_last_success_timestamp_seconds` for the node_exporter textfile collector, and a rejected alert now fails the notify unit instead of exiting 0.
Assisted-by: DeepSeek Harness 0.2.1-rc.2 (deepseek-flash)
On its next run the unit deletes every snapshot whose name stamp is older than 14 days, whatever
its mtime.
Assisted-by: DeepSeek Harness 0.2.1-rc.2 (claude-opus-5-5)
The DPMS wake failure is the monitor no-signal auto power-off (HPD cycling during idle), not the refresh rate: the 120 Hz pin did not fix it. Disabled in the OSD and recorded as WA-041; pin 144.000 explicitly so niri stops silently falling back.
Assisted-by: DeepSeek Harness (deepseek-flash)
The 4090 reports the panel 120 Hz mode as 119.880, not 120, so niri fell back to 144 Hz; that DSC link stays dark after a DPMS wake.
Assisted-by: DeepSeek Harness (deepseek-flash)
The guest configurations import modules/base/overlays.nix, whose overlays
require myNurPkgs, so every VM host failed to evaluate its microVM definitions.
Assisted-by: DeepSeek Harness 0.2.1-rc.2 (deepseek-flash)
EasyEffects 8 keeps its KConfig settings database plus user presets, autoload
profiles and imported models under $HOME, which the tmpfs root drops on
reboot; bind-mount both directories from /persistent.
Assisted-by: DeepSeek Harness 0.2.1-rc.2 (deepseek-flash)
* feat(agents): use the shell's own dialect; allow 5 s retry backoff
Assisted-by: DeepSeek Harness (deepseek-flash)
* feat(dsh): make Nushell the only shell
Assisted-by: DeepSeek Harness (deepseek-flash)
* docs(agents): wait for CI in the background
Pushes to a PR often start multi-minute CI runs, and an agent that holds
the turn open on a foreground watch reports nothing until it ends. Require
the pushed head and running checks to be reported first, the watch to run
in the background, and the result to be collected after independent work
or after ending the turn.
Assisted-by: DeepSeek Harness (deepseek-flash)
* docs(agents): keep the shell-handoff rule platform-neutral
The global rules carry no Windows assumptions: drop the cmd, pwsh, and
wsl handoff examples and keep the POSIX forms plus the dsh refusal.
Assisted-by: DeepSeek Harness (deepseek-flash)
* docs(dsh): keep the shell-swap docs POSIX-only
This repository manages Linux and Darwin hosts, not Windows: drop the
Windows handoff examples and terminal-backend wording from dsh.md. The home
patch also disabled pwsh-sandbox redundantly because dsh-base already
disables that row on POSIX; keep only the active bash-sandbox disable and
verify the composed rows with --dump-config.
Assisted-by: DeepSeek Harness (deepseek-flash)
* docs(agents): keep the global rules runtime-neutral
Global rules are loaded by every agent CLI, so they must not describe one
runtime's behavior. Drop the dsh-specific sentence and wording while keeping
the expectation to prefer Nushell structured pipelines and Python. Runtime
behavior stays documented in home/base/tui/agents/dsh.md.
Assisted-by: DeepSeek Harness (deepseek-flash)
* docs(agents): default shell work to Nushell
Keep the Nushell preference explicit in the runtime-neutral global rules, and
keep runtime behavior in runtime docs. Bash stays a narrow fallback for tasks
Nushell cannot do.
Assisted-by: DeepSeek Harness (deepseek-flash)
* docs(agents): tighten global-rule scope and CI guidance
Keep global rules runtime- and project-neutral, and state that boundary in the
file. Remove the duplicated CI turn-steering text in favour of the Communication
rule, resolve the watch run before watching instead of relying on
gh pr checks --watch alone, name the working-directory parameter generically,
and distinguish a bounded retry backoff from a fixed completion wait.
Assisted-by: DeepSeek Harness (deepseek-flash)
* docs(agents): never estimate a CI run's duration
A CI run has no predictable length, so do not turn "it looks short" into a
reason to wait. The rule is unconditional: report the head and started checks,
start a background watch, and end the turn; collect the result on completion.
The eval scenario now uses an unknown duration.
Assisted-by: DeepSeek Harness (deepseek-flash)
* docs(agents): move maintenance guidance to the README
The runtime/project boundary is guidance for editing the rules, not a rule
agents need loaded every session. The README's Maintaining global rules
section already owns that audience; the loaded rules keep only behavior.
Assisted-by: DeepSeek Harness (deepseek-flash)
* refactor(dsh): render the home patch from a YAML template
Move the home-layer cordis patch into dsh-cordis.patch.yml, substitute the
bundle and Nushell store paths with replaceVars, and link the rendered file
through home.file.source. This module is the only writer of
~/.dsh/cordis.patch.yml, the current host has no such file, and the profile
patch is a separate layer.
Assisted-by: DeepSeek Harness (deepseek-flash)
* refactor(dsh): install the shell plugin through NUR withPlugins
Replace the local runCommand bundle, peer symlink, and home-layer YAML file
with the plugin package and dsh.withPlugins from ryan4yin/nur-packages#43. The
package wrapper adds a generated --patch overlay after the profile layer, so
dsh no longer writes or manages ~/.dsh/cordis.patch.yml. The NUR input is
temporarily pinned to the PR branch and its commit; point it back at main once
the NUR PR merges.
Assisted-by: DeepSeek Harness (deepseek-flash)
* refactor(nix): expose the NUR package set as nurPkgs
Pass one per-system NUR package set through specialArgs instead of repeating
nur-ryan4yin.packages.${pkgs.stdenv.hostPlatform.system} at each call site.
The agents, rime, and idols-ruby modules now use the short binding.
Assisted-by: DeepSeek Harness (deepseek-flash)
* refactor(nix): use nurPkgs in package overlays
The overlays receive specialArgs too, so they can use the per-system NUR
package set instead of rebuilding the long input path from prev. This leaves
only the definition in outputs/default.nix.
Assisted-by: DeepSeek Harness (deepseek-flash)
* refactor(nix): name the per-system NUR set myNurPkgs
Leave room for consuming another NUR repository later, and match the existing
mylib/myvars naming.
Assisted-by: DeepSeek Harness (deepseek-flash)
* chore(dsh): consume the merged NUR package set
nur-ryan4yin now points at main after ryan4yin/nur-packages#43 was squash
merged; the lock records the merge commit. No branch ref remains.
Assisted-by: DeepSeek Harness (deepseek-flash)
* fix(dsh): pass the web profile explicitly
The withPlugins launcher prepends --patch, which historically prevented dsh
from auto-expanding "dsh web" into "--profile web". Pass the profile
explicitly in the Just recipe and the verification commands so they work with
both plain dsh and the wrapper.
Assisted-by: DeepSeek Harness (deepseek-flash)
* chore(dsh): pick up the wrapped-profile fix
Update nur-ryan4yin to the squash merge that keeps an implicit profile name
first, so "dsh web" and "just dsh-web" work through the wrapper again.
Assisted-by: DeepSeek Harness (deepseek-flash)
* chore(dsh): pick up the plugin peer-link fix
Update nur-ryan4yin to the squash merge that links the dsh peer tree at
node_modules/@deepseek-ai instead of nesting it one level deeper. This is the
import failure that stopped nushell-executor from activating after deploy.
Assisted-by: DeepSeek Harness (deepseek-flash)
* feat(aquamarine): make the iGPU usable for media and OpenVINO
The R9700s stay reserved for inference: VA-API/QSV transcoding moves to the iGPU media
engine, and `openvino-gpu` works around ROCm's OpenCL loader shadowing the plugin's
`ocl-icd` (WA-038).
Assisted-by: DeepSeek Harness 0.2.1-rc.2 (deepseek-v4.1-flash)
* docs(aquamarine): document OpenVINO on the iGPU
How to run models on the iGPU: the `openvino-gpu` wrapper, the encoder staticization Whisper needs
on `GPU`, compile/steady timings and memory, and the language and cache caveats.
Assisted-by: DeepSeek Harness 0.2.1-rc.2 (deepseek-v4.1-flash)
The goal is speech recognition on the NPU for vinput, and sherpa-onnx cannot
deliver it: every model it loads keeps a dynamic time axis, which the NPU
compiler rejects outright. Qwen3-ASR and SenseVoice both core-dumped in
vpux-compiler ("Got non broadcastable dimensions pair"), and reshaping the ONNX
inputs does not help because the dynamic dimensions sit inside the graph
(WA-037). Whisper is the only family OpenVINO publishes fully static IRs for,
and its fixed 30 s window is exactly what the compiler accepts.
The host now runs an OpenAI-compatible /v1/audio/transcriptions service backed
by whisper-large-v3-turbo int8 on the NPU: 1.5 s for 11 s of audio against
2.1 s on CPU, with the compiled graph cached in /var/cache so only a cold cache
pays the ~60 s NPU compile. vinput on the desktop sends raw PCM to it through a
small provider script.
Only the NPU driver and compiler still come from the unmerged branch in the
`nixpkgs-npu` input (NixOS/nixpkgs#570230), whose nixpkgs also happens to be
the one where openvino-genai 2026.4.0.0 builds at all.
Assisted-by: DeepSeek Harness 0.2.1-rc.2 (deepseek-v4.1-flash)
CPU warns at 90 C, GPU at 95 C and other components at 75 C; per-core probes
are excluded so a full-core compile no longer raises 26 alerts.
Assisted-by: DeepSeek Harness (deepseek-flash)
The Explore link named a datasource that does not exist, and rules without an
alertgroup label rendered an empty value.
Assisted-by: DeepSeek Harness (deepseek-flash)
changes() produced one series per pg_settings_* metric with identical labels,
so VictoriaMetrics rejected the rule with "duplicate output timeseries" whenever
a setting changed.
Assisted-by: DeepSeek Harness (deepseek-flash)
CPUTIN and AUXTIN* read 101 C or saturate at -128/127 C with no sensor wired,
so the alert fired while the CPU package stayed near 53 C.
Assisted-by: DeepSeek Harness (deepseek-flash)
Aquamarine builds for ai and shoukei across the three platforms, with both
daemons logging in as root. They authenticate with their passphrase-free SSH
host keys, and ssh_known_hosts now carries each builder's address.
Assisted-by: DeepSeek Harness 0.2.0-rc.2 (deepseek-flash)
On a tmpfs root the flake/fetch cache is empty at every boot, so
`nix run <flake-ref>` re-downloads its input and fails until DNS is up: a reboot
test showed llama-swap's first start failing on that. Other caches write into
RAM meanwhile.
Assisted-by: DeepSeek Harness (deepseek-flash)
disko creates the swapfile only when it formats the pool, so the live 96G files
keep their size until they are recreated with btrfs filesystem mkswapfile; that
frees 64G per host.
Assisted-by: DeepSeek Harness 0.2.0-rc.2 (deepseek-flash)
* fix(ssh): retry and multiplex LAN connections
* fix(ai): shrink the neighbour-probe fallback to ~1s
Assisted-by: DeepSeek Harness 0.2.0-rc.2 (deepseek-flash)
systemd ignores `path` inside [Service], so the unit ran with the default PATH
instead of the coreutils one it asks for.
Assisted-by: DeepSeek Harness (deepseek-flash)
Enabling the module runs `openrgb --server` at boot and installs its udev rules,
so the GUI and the CLI reach the MSI controller without root.
Assisted-by: DeepSeek Harness (deepseek-flash)
The module loads i2c-dev and grants /dev/i2c-* to the i2c group and locally
logged-in users, so ddcutil no longer needs root.
Assisted-by: DeepSeek Harness (deepseek-flash)
ryan4yin | 二花
Ryan Yin