Validation History
17 minute read
This page collects dated source, packaging, VM, and public-installation evidence through 1.2.0. Each entry retains its tested revision and scope. For current host support and release behavior, see Platforms and Limits and the release notes.
Barn 1.2.0 final acceptance — 2026-11-12
| Item | Recorded identity |
|---|---|
| Tag and commit | v1.2.0 → 90f615804b823b4eb491101e642073dcd37a9700 |
| Build time | 2026-11-11T23:38:07Z; SOURCE_DATE_EPOCH=1794440287 |
| GitHub Release | ID 442314866; published 2026-11-12T00:05:32Z as stable/latest |
| Apple notarization | Accepted submission 165b486b-5055-4eca-a595-54bed6bdd6c1 |
| Signed catalog | Revision 2026110502; SHA-256 d41e46d20bc57cb1b071e3919a27a8f7f703df2addca879970a528e7ab004065 |
- CI and packaging: Source/Mac CI and complete packaging CI passed the release commit. The tag workflow passed its signing-configuration check and skipped remote assembly; the documented local signing path produced the formal release.
make release-local, signatures, notarization, staple, and Gatekeeper passed. - Final artifacts and catalog: All 20 draft and all 20 anonymous public downloads matched the verified local sizes and SHA-256 digests. Both official catalogs verified, activated in fresh roots, and matched the embedded bytes; each mirror’s 17 stable artifacts passed reachability/size checks. Selected runtime image downloads also verified their payload digests.
- Final runtime: The downloaded Linux archive passed 18 KVM operations covering ext4/XFS root growth, idempotence, shrink rejection, guest-tool failure, CLI interruption, identity/data retention, concurrency, and teardown. The downloaded native Mac bundle completed all 15 lifecycle phases plus desktop, two-way clipboard, close-window background execution, SSH, and normal shutdown. One Apple HTTPS timeout was preserved and retried successfully after identity/base checks; no product bytes changed.
- Public delivery: Public latest and pinned installers passed on
darwin/arm64andlinux/amd64. Isolated installer upgrade from 1.1.0 and repeated installation passed. The Homebrew update passed a real 1.1.0 → 1.2.0 upgrade,brew test, style, and strict online audit. The bilingual reference now documents 57 commands and 174 local option entries per language against 1.2.0.
Physical runtime coverage was darwin/arm64 and linux/amd64; darwin/amd64 and native linux/arm64 received cross-build and artifact checks. The historical 1.1.0 homepage recording is explicitly labelled. See the complete release review for candidate upgrade evidence, retained retries, and scope limits.
Barn 1.2.0 preparation — 2026-11-12
The 1.2.0 readiness review preserves the uncommitted candidate’s source, catalog, full snapshot, Linux/KVM and native Mac checks, followed by the completed commit, CI, signing, and publication gates.
Barn 1.1.0 final acceptance — 2026-11-09
| Item | Recorded identity |
|---|---|
| Tag and commit | v1.1.0 → b2cc8da8983e710255d504bf26bf5d7b3f182790 |
| Build time | 2026-11-09T01:28:55Z; SOURCE_DATE_EPOCH=1794187735 |
| GitHub Release | ID 438656123; published 2026-11-09T01:46:13Z as stable/latest |
| Signed catalog | Revision 2026110502; SHA-256 d41e46d20bc57cb1b071e3919a27a8f7f703df2addca879970a528e7ab004065 |
- Source and packaging: The release commit passed source/Mac CI and complete packaging CI before tagging. Local
make check,make mac-native-test, andmake release-snapshotalso passed. The tag workflow passed its signing-configuration check; the complete release used the documented local signing path because repository signing secrets were absent. - Downloaded assets: All 20 draft attachments were downloaded again and matched the local sizes and SHA-256 digests. The 19-entry checksum manifest, archive/package parity, four binary architectures, file permissions, helper pairing, and SPDX documents passed verification. Apple accepted notarization submission
cabe1b9c-fc54-4f07-b8bf-d834f0226013; the downloaded app passed signature, staple, and Gatekeeper checks. The relocated Homebrewbin/libexeclayout found the matching native component. - Catalog: Both official catalogs passed signature verification, activation in fresh data roots, and byte comparison against the embedded catalog; all 17 stable artifacts passed HTTP availability and size checks on both mirrors. The final downloaded binary also activated the official catalog in a fresh
BARN_HOME. - Linux runtime: The downloaded
linux/amd64binary created a Debian 13 guest using-I d13 -A x86_64without rewriting its inventory. CPU/memory changes2/2 GiB → 3/3 GiB → 2/2 GiB, stop/start, remote arguments, and exit17passed. VM UUID, SSH public key, machine ID, and the persistent-disk sentinel survived resizing and restart. A second Debian 13 guest booted asarm64through-A aarch64, using QEMU TCG withcortex-a72; SSH reportedaarch64. Both test guests were removed after verification. - Mac runtime: A new isolated macOS 27 guest passed creation, SSH, remote exit
17, stop/start, identity and data retention, and destruction. Existing user SSH files were unchanged and the user’s running Mac VM was left in place. The signed public installer and repeated installation also passed in a separate directory. - Public delivery: Anonymous downloads of all 20 public attachments matched the verified draft. Both the default installer and explicit
BARN_VERSION=1.1.0installed the published release. The Homebrew update sets all four archive URLs and digests. The initial Ubuntu 26.04 recording verified public installation and a first Linux VM on a prepared host network; the homepage recording now shows a real Apple Silicon macOS run (brew install pgsty/infra/barn,./configure -c full, a four-nodebarn up, andbarn statuson macOS 27.0.1 with QEMU 11.1.3). A subsequent 16-stage in-place upgrade and multi-distro acceptance run on Apple Silicon is recorded in Barn 1.1.0 Local Acceptance.
Physical hosts covered darwin/arm64 and linux/amd64, with an additional linux/arm64 guest under TCG. darwin/amd64 and native linux/arm64 received cross-build and artifact checks. GUI and clipboard evidence retains its earlier dated scope. Initial harness retries corrected unsupported timeout flags, a test write requiring guest sudo, and a TCG assertion that did not accept the thread=multi option; their logs were retained alongside the successful runs.
Barn 1.0.0 final acceptance — 2026-11-05
The final acceptance record binds the downloaded artifacts and public installation checks to this release identity:
| Item | Recorded identity |
|---|---|
| Tag and commit | v1.0.0 → 69ef7f1d6ffc7c6fbffffe178b2fa48e799dc02d |
| Build time | 2026-11-04T17:54:45Z; SOURCE_DATE_EPOCH=1793814885 |
| GitHub Release | ID 434268111; published 2026-11-04T23:18:10Z as stable/latest |
| Signed catalog | Revision 2026110502; SHA-256 d41e46d20bc57cb1b071e3919a27a8f7f703df2addca879970a528e7ab004065 |
- Source and downloaded assets: The final commit passed source/Mac CI and packaging CI. The release used local Developer ID signing because automated signing secrets were absent. All 20 uploaded attachments were downloaded again, matched their original sizes and SHA-256 digests, and passed the 19-entry checksum manifest plus archive/package, CLI/helper, architecture, permission, SBOM, and identity checks.
- Catalog bytes: Both official catalogs verified and matched the embedded bytes. Streaming all 17 stable artifacts from each mirror produced 34 successful size/digest checks. A fresh
BARN_HOMEactivated the catalog withbarn update. - Packaged Mac acceptance: The downloaded CLI/helper/app passed Developer ID, notarization, staple, and Gatekeeper checks, including after installation and relocation into the Homebrew layout. An isolated
0.9.3 → 1.0.0installer upgrade retained the old release and existing VM identities, SSH keys, and data sentinels. A new VM passed SSH, write, stop/start, identity/data retention, and destruction checks. - Linux acceptance: On
linux/amd64, the downloaded binaries created two Debian 13 guests in a fresh state root. Fixed IPs, accounts, XFS data disks, stop/start/restart, argument boundaries, and remote exit17passed. Missing-node recreation failed before stopping VMs; control-node deletion elected a successor; destruction followed byuprotated machine identity while preserving a persistent-disk sentinel. - Public channels: After publication, both the default installer and explicit
BARN_VERSION=1.0.0installed the public release. Real Homebrew upgraded0.9.2 → 1.0.0and passedbrew test, online audit, and tap tests. The tap update and site update were published, and the public bilingual release and installation pages were checked.
Physical runtime coverage was darwin/arm64 and linux/amd64. darwin/amd64 and linux/arm64 received cross-build and artifact checks. GUI, clipboard, and fault-injection experiments from the preceding candidate run retain that earlier identity below.
Hardening and candidate rehearsals — 2026-11-04–05
The hardening checkpoint at 377061c passed source checks and a 0.9.4-next packaging snapshot without a native Mac payload. Subsequent physical-host tests began with 0.9.4-next; fixes received focused retests, followed by a signed and notarized 1.0.0-rc.1 build using catalog 2026102802. The candidate run covered disk-preservation checks, lock release after cancelled sudo work, shared-networkd uninstall, the 15-stage Mac lifecycle, GUI/clipboard, and interrupted-recreate recovery. Final release assembly later used catalog 2026110502 and the identity above.
The record retains failed attempts as well as successful reruns. A short SSH probe needed bounded retry; a resource-constrained build and a shared module-cache failure needed environment corrections; one acceptance assertion incorrectly required a stdout field when successful empty output could omit it. The dm-error experiment was rejected by the whole-disk guard before reaching the filesystem checker. These observations identify which product path actually ran and which failure belonged to the harness or environment.
Barn 0.9.1 local candidate acceptance — 2026-10-22
The 0.9.1 record reports make check, native component tests, four-platform packaging, and an ad-hoc native payload. The CLI candidate was 0.9.1-dev.1; the complete snapshot was 0.9.1-next. An isolated upgrade from a real 0.9.0 archive used a local download fixture and verified repeated installation, retained releases, helper pairing, and app discovery. Homebrew checks covered the bin/libexec layout; native tests and mac doctor did not start a VM. The public 0.9.1 assets contained CLI/helper archives and Linux packages, without Barn.app; the original record’s public-release checklist describes the subsequent process, not completed runtime evidence.
Pre-0.9.0 checkpoint — 2026-09-29
At the 2026-09-29 checkpoint, Barn 0.9.0 was the first release candidate prepared under the barn name prior to publication. For current installation commands, use the Quick Start.
Documentation baseline
| Component | Identity at the 2026-09-29 checkpoint | Scope notes |
|---|---|---|
| Application and docs | Barn 0.9.0 release candidate |
Built from the renamed source tree prior to public tag release |
| CLI and configuration | barn, barn.yml, BARN_* |
Clean break from earlier internal names |
| State and host resources | ~/.barn, Barn networking, and barn-hosts-helper |
Uses fresh ~/.barn state without migrating pre-rename development directories |
| Image repository | /barn on the official endpoints |
Requires valid minisign catalog signatures |
macOS guests
At the 2026-09-29 checkpoint, barn mac ran macOS 27 guests on Apple Silicon via Barn Mac.app (io.pgsty.barn.mac-runner; subsequently renamed to Barn.app / com.pgsty.barn in Barn 0.9.1) with state under $BARN_HOME/mac (see the current macOS Guests guide and Mac Commands reference).
Following the rename on 2026-09-29, local CLI and barn-hosts-helper unit suites, native bridge/image/exit-prompt/menu tests, the runner bundle build, ad-hoc code-signature verification, and probe checks all passed, building on the full 16-phase live macOS VM acceptance run recorded earlier that day.
The rename record explicitly limits the renamed build’s evidence to those checks: its VM lifecycle was not replayed. The 2026-10-03 archive correction retained the original dates, versions, commits, and test scope rather than attributing earlier VM runs to the renamed build.
Remaining pre-0.9.0 release checks
At the 2026-09-29 checkpoint, the remaining pre-publication gates for 0.9.0 were:
- Full source, archive, DEB/RPM, installer, and four-platform checks on the final tagged commit.
- Fresh host setup and Linux/macOS VM lifecycle and cleanup verification under the renamed binary and paths.
- macOS Developer ID signing, notarization, and release publication.
- Verification of the public GitHub repository, Homebrew tap, official
/barnimage endpoints, andbarn.pgsty.com.
Earlier Mac implementation records
- 2026-09-26–27: The initial implementation log records a full IPSW download and CLI restore, base-image immutability, dual-guest lifecycle tests, and installer rejection of a modified package. The final 12-stage run took
140.305 sstarting with already initialized guests. It used the retired fixed-slot/shared-network implementation and an ad-hoc development signature. - 2026-09-28: The complexity review retained identity, locking, and recovery safeguards while simplifying the implementation. Regression checks verified that readiness did not rewrite SSH material. An initial shutdown timeout coincided with high guest load; the full rerun passed without forced power-off or timeout changes. The record treats the load as an observation, not a proven cause.
Barn Mac native record: 2026-09-29
On 2026-09-29, the pre-rename development tree was validated on an Apple Silicon Mac running macOS 27.0 (26A428) using an ad-hoc signed development build and APFS clones of a base image prepared on 2026-09-26 from Apple’s pinned 27.0 restore image:
- Source and bundle checks: Full
make check, native Swift component tests, and the Mac bundle build with extracted-archive checksum, signature, andprobechecks passed. - Automated 16-phase live acceptance (244.9 s): Verified VM creation from the base image, named VM creation with a VirtioFS shared folder, independent machine identities,
sshdhardening, disk and per-VM subnet isolation, DNS, outbound HTTPS, exit-code propagation,execargument boundaries, bidirectional shared-folder writes, cleanstop/start,configure, enforcement of the two-VM running limit,recreateidentity rotation, desktop window display, two-way plain-text clipboard sync, idempotentup, anddestroy. - Manual timing and recovery checks: First boot from a prepared base image reached SSH readiness in
22 s; clean shutdown completed in6.5 s; subsequent starts reached SSH readiness in6–12 s; forced power-off completed in0.7 s. Also verified booting into macOS Recovery (--recovery), changing--subnetwhile preserving the pinned SSH host key, and connecting viassh mac1through installed~/.ssh/barn-mac_configentries.
Items deferred to subsequent release milestones at that checkpoint:
- Developer ID signing, Apple notarization, and public distribution of the app bundle.
- End-to-end IPSW download + base preparation via first-time
barn mac uporbarn mac image update. - Desktop menu Restart… and Shut Down… actions, additional Apple Silicon models, and host reboot persistence.
The same named-machine record includes a later 07ebfd4 candidate rerun: all 16 phases passed in 298.9 s after an initial five-second SSH probe failed and the guest answered on a later observation. Both runs reused an existing 26A428 base; fresh download and restore remained outside that checkpoint’s coverage.
Pre-rename Linux validation summary
| Host or artifact | Path | Last verified | Result |
|---|---|---|---|
Two Linux amd64 hosts (m0, m3) |
KVM, 7 guest distributions per host | 2026-09-21 (0.8.0) |
Clean initialization, first SSH, in-place candidate upgrade, repeated up, stop/start, disk identity, and Ansible inventory reads passed |
Two macOS arm64 hosts (m1, m5) |
HVF, 7 guest distributions per host | 2026-09-21 (0.8.0) |
Full 7-distro lifecycle checks plus 7-node ansible all -m ping passed |
Catalog 2026092001 |
9 families, 37 artifacts (September Debian/Ubuntu refresh) | 2026-09-21 | Embedded, local, LAN, and public catalog bytes matched (23e8dbf6...); 10 new image objects verified at both public endpoints and booted across the 4 hosts |
Ubuntu 26.04 amd64 |
KVM, QEMU 10.2.1, Ubuntu 24.04 guest |
2026-09-16 (0.7.0 recovery) |
Corrupt data-disk reset, failed probes, busy mounts, retained-disk recreation, share recovery, and idempotent up passed |
macOS arm64 |
HVF, Ubuntu 24.04.4 guests | 2026-09-05 (0.6.0 lifecycle) |
Create, scale-out, control-to-peer SSH, stop/start, reload, recreate, degraded status, and scale-in passed |
macOS 26.6.2 arm64 |
HVF, QEMU 11.1, socket_vmnet |
2026-09-01 (v0.2.0) |
Selected node create/SSH/stop/start, incremental cached create, full status, and full destroy passed |
macOS 26.6.2 arm64 |
HVF, QEMU 11.1, socket_vmnet |
2026-08-27 | Single-node and additive four-node lifecycle passed |
Ubuntu 26.04 amd64 (mx) |
KVM, QEMU 10.2.1, NetworkManager |
2026-09-01 (v0.2.0) |
Audited a live four-node deployment and connected to its control guest |
Ubuntu 26.04 amd64 (mx) |
KVM, QEMU 10.2.1, NetworkManager |
2026-08-27 | Host setup, single-node, additive four-node, and network uninstall passed |
macOS arm64 |
HVF host, TCG rule for Rocky Linux 8.10 arm64 |
2026-08-28 | Boot, stop/start, and SSH readiness in 44.2 s passed |
Published Catalog 2026090501 |
9 families, 27 qcow2 artifacts |
2026-09-05 | Artifact verification, embedded/public byte equality, and signed barn update against both official endpoints passed |
Published Catalog 2026082903 |
9 families, 27 signed qcow2 artifacts |
2026-08-29 | Full 19 GiB SHA-256 sweep and clean-client d13:stable pull passed |
In the 0.8.0 four-host acceptance run, each host booted Rocky Linux 9.8 and 10.2, Debian 12.15 and 13.7, and Ubuntu 22.04.5, 24.04.5, and 26.04.1 (28 guest VMs total, all passing and cleaned up afterward). Both official endpoints served catalog 2026092001 with SHA-256 23e8dbf6c19bd192d56c6d71eb30901f17945b3487e427a43abe108463780306, verified via isolated barn update runs and HTTP HEAD content-length checks on the 10 new image objects.
Open test items at the earlier checkpoint
- Rocky/EL9 hosts with NetworkManager +
firewalld, and a freshsystemd-networkdhost replay. - Physical host reboot persistence across active deployments.
- Live hypervisor runs on
darwin/amd64andlinux/arm64hosts beyond cross-build and package verification. - End-to-end
el7VM lifecycle replay on nativelinux/amd64. - Full Pigsty
configure → barn up → install.ymlplaybook execution. - Fresh-host
setupand VM creation driven end-to-end from the public download installer, Homebrew formula, or published DEB/RPM packages.
Barn verification history
Barn 0.8.0 — 2026-09-21
- Release CI and assets: Tag
v0.8.0(320a32afa8f6fca02592215aa0d5607ca4e852b2) passed source CI, the packaging snapshot workflow, and the release tag workflow, publishing 20 release assets (19 checksummed payloads). All 20 assets were downloaded anonymously and verified against the releasechecksums.txtmanifest, and isolated user-prefix installs ondarwin/arm64andlinux/amd64verified0.8.0(320a32a). - Homebrew tap: Commit
9c34019updatedpgsty/infra/barnto0.8.0across all four targets and passed localbrew fetch, audit, and tap CI. - Four-host 7-distro acceptance: Clean initialization was run at baseline commit
6d7870e26cb2f4082a00c188f746783fc027687eacross two Linuxamd64hosts (m0,m3, installed from the.debpackage) and two macOSarm64hosts (m1,m5, installed from the verified archive), booting the 7-distroproinventory from a local LAN repository. Runtime candidate1c054a027420b5410c6f6feb344e27e001ae1af1(adding the macOS Homebrew authentication-order fix) was then installed in place on all four hosts and verified across idempotentup(preserving running QEMU processes, VM UUIDs, and disk inodes), two rounds of guest SSH,stop/start,/datadisk mounts, Debian locale/XFS checks, control-to-peer SSH, and Ansible inventory reads (ansible all -m pingon both Macs). See the 0.8.0 Release Notes for per-host timings.
Barn 0.7.0 release — 2026-09-16
- Release CI and assets: Commit
9c6d4896d93733d1cb60a7e5d8591e9a06659c9d(v0.7.0) passed source CI, the packaging snapshot workflow, and the release tag workflow. All 20 public release assets passed anonymous download and SHA-256 verification, public installer checks passed ondarwin/arm64andlinux/amd64, andpgsty/infra/barnpassed localbrew upgradeandbrew test. - Ubuntu
amd64/KVM storage & bootstrap recovery: Tested corruptext4/XFSdata-disk resets (3.2 srecovery while keeping the QEMU process alive), persistent disk retention acrossrecreate, transient probe failures and busy mounts (preserving existing disk data and UUIDs), read-only 9p share fallback, and resuming a0.6.0VM whose initial egress probe had failed (3.3 srecovery, surfacing the expectedcontrol-sshwarning where0.6.0had already removed the staged control key; see the 0.7.0 Release Notes). Catalog2026090501remained unchanged.
Barn 0.6.0 release — 2026-09-05
- Release CI and assets: Following lifecycle, UX, release-metadata, and CI fixture reviews, commit
057774e3a13477782a2ae07bd71127d03c0f1ae7(v0.6.0) passed Go1.27.1source CI, packaging checks (13d9d70), and the release tag workflow, producing 20 verified release assets. An isolateddarwin/arm64installation verified upgrading from0.5.0to0.6.0via the public installer, plusbarn initandbarn plan. - macOS
arm64/HVF lifecycle acceptance: Verified initial boot, scale-out without restarting the control node, control-to-peer SSH,stop/start,reload, selectiverecreate, scale-in, guest/etc/hostsrefresh, preflight rejection of invalidreloador conflicting partialrecreatebefore stopping existing VMs, degradedstatusreporting, and SSH exit code255passthrough. - Catalog
2026090501: Switched the default image tou24:stableand incorporated the Debian/Rocky updates from2026090302across all 27 verifiedqcow2artifacts on both official endpoints.
Barn 0.5.0 release — 2026-09-03
Commit fc85b65ff6a24b0933b56ae1179be9ada2ba91b1 (v0.5.0) passed Go 1.27.1 source and GoReleaser packaging gates and published the 20-asset pre-release. 0.5.0 introduced confirmation-free whole-deployment barn purge, set https://repo.pigsty.io/barn as the global default repository with --mirror for https://repo.pigsty.cc/barn, removed implicit upstream URL fallback during artifact downloads, and added packaging/image-pipeline/build-official.py for the eight digest-pinned Debian/Rocky targets.
Barn 0.4.0 release — 2026-09-02
Passed make check and all release archive, DEB/RPM, SBOM, checksum, installer, and Homebrew formula gates. barn up gained automatic interactive host setup when run on an unprepared terminal host, vm_disks[].fs defaulted to auto, readiness errors began surfacing the last guest error line, and CLI output formatting was unified across commands.
Barn 0.3.0 release — 2026-09-02
Passed make check and all release packaging gates. Made catalog refreshes explicit via barn update and barn image sync, and added per-node failure stages and log inspection hints to guest readiness error messages.
Barn 0.2.0 release — 2026-09-01
Commit 59d1b62aebb3d044a317e4006cc8a0bf56f4feaf (v0.2.0) passed source CI, packaging workflows, and local four-platform archive, DEB/RPM, and SPDX verification. Live darwin/arm64 HVF acceptance verified selective u24-1 create/SSH/stop/start, incremental cached el9-1 creation, whole-deployment status, and destroy with SSH config cleanup. On Ubuntu 26.04 amd64/KVM, the Linux binary audited a running four-node deployment and connected to its control guest.
Schema-3 Catalog closure — 2026-08-29
Catalog 2026082903 (9 families, 27 artifacts, SHA-256 571b1ff9c7d4d42355df3392ea62a339471c2d01d868669a7625fac8b93f245d, signed by key 4686B39A40F9B562) passed byte-for-byte equality checks between the embedded catalog and published endpoints, a full SHA-256 sweep across all 27 qcow2 artifacts (19 GiB), and a clean-client d13:stable (409.3 MiB) download and qemu-img check on darwin/arm64.
0.1.0 candidates — 2026-08-28 and 2026-08-29
Validated two targeted fixes prior to 0.2.0:
- Targeted QMP recovery: When QMP sockets were externally removed from two of four running nodes on
darwin/arm64, Barn restarted only the two affected nodes (13.7 sto readiness) while keeping the two healthy nodes’ boot IDs unchanged. - QEMU-free catalog inspection: Decoupled
barn image listandmake checkfrom requiringqemu-imgonPATHwhen no local cachedqcow2files need inspection.
EL7/EL8 compatibility — 2026-08-28
Commit 7c666c7 restored el7 and el8 support with regression tests covering pre-recreate runtime preflight ordering and signed-catalog baseline migration. Catalog 2026082801 (9 families, 17 image artifacts, plus 2 socket_vmnet archives) passed full SHA-256 and signature checks, and an isolated darwin/arm64 run booted Rocky Linux 8.10 arm64 under the built-in TCG rule to SSH readiness in 44.2 s (verifying NetworkManager, fixed IP, dba UID/GID 88, and guest markers).
Native replay — 2026-08-27
Verified fixed-IP networking, SSH readiness, default CPU/memory/root/data disks, cloud-init, stop/start, cross-directory CLI invocations, control-node uptime preservation during scale-out, control-to-peer SSH, ignoring upper-layer Pigsty variables, and explicit-only node destruction across darwin/arm64 and linux/amd64 (mx). On Linux, also verified passwordless sudo automation, Debian qemu-bridge-helper group permissions, unprivileged bridge attachment, refusal to uninstall an active bridge with four attached tap interfaces, and clean network teardown after destroy.