* feat(mihomo): keep ranges that can never be proxied out of TUN
The list lives in policy.yaml as tun_exclude_address; sources.yaml may override
it. 198.18.0.0/15 stays in TUN: that is the fake-ip range itself.
* feat(mihomo): match Valve's content servers by ASN
The 20 hand-copied prefixes had drifted from what AS32590 announces. The rule
type needs GeoLite2-ASN.mmdb, so geox-url.asn points at the same mirror.
* feat(mihomo): render the gateway config from the same sources
The hand-kept copy had drifted: a manual sync carried the desktop's secret onto
the gateway and dropped external-ui-url. --redact yields a shareable template.
* fix(mihomo): open the link DNS takeover only once the core serves it
The core opens :1053 after parsing rules, and rule parsing is where missing
geodata gets fetched. Flipping at fork time made that fetch SERVFAIL, the config
fatal, and the unit unstartable.
* fix(justfile): keep local endpoints out of the agent proxy
With only HTTP_PROXY set, a request to this host's own llama-swap endpoint went
to mihomo. Node matches exact hosts only, so the literals carry it; the CIDRs
serve curl and Go.
* feat(justfile): seed mihomo geodata into the service state dir
So a cold start never needs the download that the DNS takeover made unstartable.
The comment trim dropped them. Without a domain rule above the Valve IP ranges,
steamcommunity.com and steampowered.com match those ranges and go DIRECT.
Steam picks download caches from the IP it sees on the CM login. Pin the CM hosts
and content CDN DIRECT, keep the community and store proxied, and add Valve's
AS32590 ranges because Steam dials cached CM IPs without a lookup. Sources in
README.md.
Every remaining pkgs-x64 consumer runs only on x86_64-linux hosts, where the
native pkgs already carries the same allowUnfree config
(modules/nixos/base/nix.nix) and overlays (modules/base/overlays.nix), so
replace the references with pkgs and drop the extra nixpkgs instantiation
(which also removes an eval on aarch64-darwin).
media.nix keeps the native Zoom app on x86_64 hosts only, since zoom-us has
no aarch64 Linux build.
* feat(restic): verify the repository after each backup
* feat(youko): snapshot the restic store hourly
* docs(backup): document the snapshot and check layers
* fix(nfs): restrict the golden export to its real clients
* fix(libvirt): bind VNC consoles to loopback
* fix(firewall): drop VNC ports on every host
* docs(security): record the NFS and VNC boundaries
Pin keyd's right-hand modifiers (rightcontrol/rightshift/rightmeta) to their own keycodes; keyd otherwise folds them into the left keys. Set Vinput's MenuKey to right Ctrl and clear CommandKeys, which would shadow it.
metacubexd hardcodes its tab title in the SPA, so dashboards on
different hosts are indistinguishable. Patch the static <title> and
re-apply the hostname from config.js, since Nuxt's useHead resets
document.title on every route change.
The config deliberately stays out of the store, under the home directory, which is a persistent bind mount on tmpfs-root hosts. When the service and the mount are introduced in the same activation, mihomo can start before the mount is up and fail with "Failed to set up credentials: No such file or directory", making the switch report status 4. Add RequiresMountsFor so the mount is brought up and ordered before the service.
* fix(desktop): tie ai's link DNS takeover to mihomo's lifecycle
sing-tun normally points systemd-resolved at the TUN DNS by running
resolvectl (dns/domain/default-route). Under nixpkgs' hardened
DynamicUser mihomo unit that hand-off fails silently: the unit's
RestrictAddressFamilies blocks resolvectl's D-Bus socket and resolve1
requires privileged authorization, so resolved keeps querying the
physical-link DNS, fake-ip is bypassed, and domain rules degrade to
MATCH.
Do the hand-off as '+' ExecStartPost/ExecStopPost hooks instead: '+'
commands run outside the sandbox (systemd.exec: address-family
restrictions do not apply to them) and ExecStopPost reverts even on
crashes, so a dead mihomo leaves DNS usable.
Signed-off-by: Ryan Yin <xiaoyin_c@qq.com>
* docs(mihomo): record sing-tun's resolvectl hand-off as the leak cause
Signed-off-by: Ryan Yin <xiaoyin_c@qq.com>
* refactor(desktop): keep mihomo only on ai and shoukei
ruby/kana never ran the core (service inactive live), and their
resolved + TUN combo would reintroduce the resolver leak once enabled.
Drop the enable and the explicit module import from computer-use; the
eval test now pins mihomo=false for both guests.
---------
Signed-off-by: Ryan Yin <xiaoyin_c@qq.com>
node_exporter listened on 0.0.0.0, so access control rested entirely on
the nftables allowlist. Bind node/smartctl exporters to the host static
LAN IPv4 (the same address VictoriaMetrics scrapes), keeping the socket
off tailscale/bridge interfaces even if the firewall regresses.
Hosts without a static LAN address (shoukei, akane) now run no exporters
at all instead of loopback-bound ones nobody scrapes; akane, a UTM VM,
previously ran a loopback smartctl exporter with no physical disks.
LAN-bound exporters also get the boot-race treatment from #372
(network-online ordering plus patient restart); loopback-bound hosts
must not pull in network-online because NM wait-online would stall
their offline boots.
The exporter binds to the host LAN address, which systemd-networkd
assigns during boot. Without ordering, the service starts before the
address exists, `bind: cannot assign requested address` trips the
start limit, and the unit stays failed until restarted manually.
Order the unit after network-online.target, and since wait-online is
best-effort (120s timeout), also retry patiently so the unit self-heals
when the link comes up late.
test-instrumentation.nix sets serial-getty@ttyS0.enable = false at normal priority to keep ttyS0 free for the test backdoor console, while qemu-guest.nix set it to true at normal priority. Two conflicting normal-priority definitions made `nix flake check` fail while evaluating packages.x86_64-linux.ruby-nixos-tests.
Use lib.mkDefault so the test framework wins in tests while ordinary QEMU guests still enable the serial getty.
* fix(colmena): expose colmenaHive for the new evaluator
nixpkgs now ships the nix-community Colmena rewrite, whose default
evaluator reads an evaluated colmenaHive flake output instead of the raw
colmena hive. Without it every colmena apply recipe failed with
"does not provide attribute colmenaHive".
Add a colmena input pinned to the same v0.5.0 as nixpkgs and expose
colmenaHive = colmena.lib.makeHive <raw hive>, with the raw hive kept as
an internal binding rather than a flake output of its own.
* chore: clean up stale colmena and aquamarine references
- point the Colmena links at nix-community/colmena after the move
- rename the security-aquamarine-metrics test to youko-metrics (it
already tested youko) and update the outputs README
- drop the commented aquamarine remote-builder example
* chore(workarounds): re-evaluate stale hardware/kernel fixes
Prune workarounds whose root cause is gone, fix one vendor typo, and
document the ones we keep:
- drop `transparent_hugepage=madvise` on shoryu/shushou/youko: it was tied to
the old fixed 1G hugetlb pool, and the VMs now use ordinary memory
- shoryu: `hardware.cpu.intel.updateMicrocode` -> `amd` (it is an AMD APU)
- ai: drop `i915.enable_guc=3` (GuC/HuC submission is the default on modern
i915/Xe)
- kernel-hardening: name the Dirty Frag CVEs (CVE-2026-43284 / CVE-2026-43500)
and the re-evaluation condition
- document re-eval conditions for the Insta360 resume fix, the darwin
auto-optimise-store workaround, and the youko USB-SATA bridge mitigations
* chore(workarounds): keep the Dirty Frag module blacklist as defence in depth
* chore(ai): correct the i915.enable_guc rationale (verified against the kernel)
* chore(darwin): drop the auto-optimise-store workaround (nix#7273 fixed)
* fix(ai): relax NVMe power-management workarounds and enable smartd
Logs show no NVMe errors, so allow APST again (capped at 100 ms), restore
the default io_timeout, and drop pcie_aspm=off. Add smartd for drive
health visibility.
* feat(storage): add drive/SSD SMART monitoring on physical hosts
node_exporter's nvme collector only exposes node_nvme_info and namespace
capacity, not SMART health, so SSD wear/lifespan and drive temperature were
not observable anywhere.
- enable services.prometheus.exporters.smartctl on physical hosts, gated on
modules.hardwareTools (off on QEMU/MicroVM guests), bound to the host's LAN
address on port 9633
- firewall: drop 9633 from anything but the monitoring host
- youko: scrape smartctl-<host> for the physical hosts
- alert rules (storage.yml): SMART health, NVMe wear, available spare, media
errors, critical warning, and drive temperature (warn 70 / crit 80 C)
- Grafana dashboard "Drive SMART (smartctl)"
Remove a dead .gitattributes rule, bump the mirror workflow's checkout,
document the daemon test settings, drop unused JACK, and align the
installer's disko version.
* feat!: replace zellij with tuios and switch to ghostty + kitty
Terminal environment overhaul:
- add the tuios flake input (upstream 0.8.5; nixpkgs has 0.8.1) and link
the checked-in config out-of-store; auto-start tuios in nushell instead
of zellij
- remove zellij entirely: both modules, config, README and nushell
completions
- remove foot and alacritty, which lack the Kitty graphics protocol;
- wechat.nix: repacking is needed because nixpkgs' wechat package does not expose its AppImage wrapper args for `.override`, not because wrapAppImage lacks overriding (it forwards args to buildFHSEnv).
- peripherals.nix: drop a link to an already-closed issue and fix a typo.
environment.enableAllTerminfo installs every terminal's terminfo, including rxvt-unicode, which no longer builds with GCC 16 (NixOS/nixpkgs#568896). Install just the terminals we use (alacritty, foot, ghostty, kitty) instead. This also makes the aarch64 jasper workaround unnecessary.
Disable the rootful system podman.socket on desktop hosts and drop the module's autoPrune, which prunes the rootful store and pulls in the rootful API service. Add a weekly per-user timer that prunes the rootless store instead.
conda/mitmproxy/wireshark are already Linux-gated in the shared home modules, and verible is unreferenced, so replacing them with emptyDirectory is unnecessary.
Hosts used to trust the router as the only boundary (servers ran with the
firewall off; service ports were opened globally), so any LAN device could
reach every host service. Move filtering to the hosts as defence in depth
behind the router, which keeps its firewall on and uses a port mapping for
the few ports we actually need.
- base: nftables backend; deny inbound by default; trust the home LAN by
source and the tailnet by interface (restrict the tailnet with ACLs);
suppress per-service `openFirewall` global ports; allow node_exporter only
from the monitoring host. The local podman bridge, the tailnet and the pod
CIDRs are accepted only after the node_exporter drop.
- servers: stop disabling the firewall; drop redundant global port opens
(caddy 80/443, NFS 2049, Jellyfin, localsend/test ports); delete the
redundant desktop firewall module; aarch64/riscv64 import the firewall
explicitly (akane was missing it).
- k3s: Cilium pods (10.0.0.0/8, fd00::/8) may reach host services; drop the
flannel-era cni0/flannel.1 trust.
- youko: postgres listens on localhost + the LAN with pg_hba limited to the
LAN; the NFS export stays LAN-scoped; remove the unauthenticated v2ray
proxy.
- tests: `security-firewall` asserts every host runs the shared firewall, has
the LAN CIDR rule and no global ports.
timerConfig was set with lowercase onCalendar/randomizedDelaySec, which systemd treats as unknown directives. The generated timer had no schedule, so `systemctl list-timers` showed NEXT=- and no backup ever ran. Use the real keys OnCalendar/RandomizedDelaySec.
Give the idols-ruby and idols-kana VMs a headless computer-use
environment: Xvfb plus i3, driven by cua-driver (and computer-use-linux
as a fallback). Includes the system module (AT-SPI, fonts, Mesa, Clash
Verge proxy, proxy-region timezone), the home i3 module (Xvfb/i3/x11vnc
services, browser flags), host wiring and an eval test.
Only three secrets are readable as the login user (nix-access-tokens,
ssh-key-romantic and the nushell one); everything else is root-only and
the filesystem already keeps agents out.
A failed backup was silent. Post to alertmanager (which routes above-info
to telegram), and have caddy answer 404 instead of its empty 200 for
*.writefor.fun names that are not services.
ryan4yin | 二花
Ryan Yin