veilor-os/README.md
veilor-org 7060d9aa6b docs: refine strategy — ostreecontainer install + mesh stack + browser stack
Refines docs/STRATEGY.md per parent-operator handoff (2026-05-05).
Locks in five things the original draft didn't cover, and corrects
one mistake.

## Refinement: ostreecontainer install path

The original draft proposed a two-step install: Anaconda partitions
+ kickstart, then on first boot a `veilor-firstboot-rebase.service`
runs `bootc rebase ghcr.io/veilor/veilor-os:43`. This commit drops
that step.

Anaconda's `ostreecontainer --url=... --transport=registry`
directive populates the root filesystem directly from the OCI image
during the install pass. No first-boot rebase, no transition
window, no second reboot. Same end state, simpler path.

Stay on `ostreecontainer` through v0.8. Do NOT migrate to the new
`bootc` kickstart command until v1.0 — it blocks multi-disk and
authenticated registries. Do NOT use `bootc-image-builder
anaconda-iso` output — deprecated in image-builder v44+. Produce
the OCI image and the bootstrap ISO as separate artifacts.

This compresses the v0.7 BlueBuild spike from 2 days → 1 day.

## Correction: keep Trivalent as default

The original strategy.md treated Trivalent (secureblue's hardened
Chromium) as an override-and-remove. That was wrong: Trivalent's
COPR tracks upstream M147+ within hours, ships hardened_malloc +
JIT-less + Drumbrake WASM. Default browser pick.

Mullvad Browser layered alongside for anti-fingerprint. Thorium
remains opt-in via `ujust install-thorium` only — its CVE lag is
months and contradicts the threat model. Never default.

## Mesh stack baked in

Three-layer warm-stack documented in STRATEGY.md:
- L3a Tailscale + Headscale (Day 1, daily driver)
- L3b Yggdrasil-go (Day 1, idle warm-fallback, AllowedPublicKeys mode)
- L3c Reticulum/RetiNet AGPL fork (opt-in via ujust install-reticulum)

Threat floor table: ISP-DNS-block (i, Day 1), ISP-Tailscale-block
(ii, Phase 2 promote Yggdrasil), internet-down (iii, opt-in RetiNet
+ RNode).

Tier model: tag:admin / tag:infra / tag:guest with failsafe pre-auth
key on yubikey + paper + Authentik OIDC group.

## Onboarding

Token paste / QR (user picks). Misskey signup mints reusable
24h-TTL pre-auth key. NOT auto-OIDC at first boot.

## Iroh seeding daemon stub (v0.8 / Phase 2)

`veilor-seed.service` documented but NOT implemented until Iroh hits
1.0 (current 0.96–0.98 RC, Q1 2026 target slipped). BLAKE3 +
iroh-gossip per-service topic. Static media only — DEFER DB
replication forever.

## External dependency tracked

nullstone Traefik `no-guest@file` ACL is currently 0.0.0.0/0
allow-all (XFF chain breakage 2026-05-03). Must be fixed before
veilor-os first-public-ISO ships, otherwise tag:guest provisioning
leaks the full vhost surface to every veilor user. Parent operator
owns the fix; explicitly out of veilor-os scope.

## Files

- docs/STRATEGY.md — full refinement
- docs/ROADMAP.md — v0.7 spike entry now reflects ostreecontainer
  + mesh stack + 1-day spike target
- README.md — drops the "v0.2.5 pre-release" badge + status box
  (out of date), adds bootc/atomic trajectory paragraph

## What did NOT change

- v0.5.x main branch is untouched. The ostreecontainer swap belongs
  in the v0.7 spike branch, NOT v0.5.32.
- nullstone Traefik config is untouched. Out of scope.
- The kickstart and overlay code is untouched.
2026-05-05 15:15:52 +01:00

7.5 KiB

veilor-os

Hardened minimal Fedora KDE spin. Black-on-black. Locked down by default.

Build veilor-os ISO License: MIT

veilor-os is a Fedora 43 KDE Plasma remix for operators who want a clean, fast, opinionated desktop with serious hardening already wired in. Boot the ISO, set an admin password, work. No installer wizard. No initial-setup screen. No telemetry. No "would you like to enable X" prompts.

The current install path is an Anaconda kickstart with a custom gum TUI on top. v0.7+ ships a hybrid path: the kickstart ISO becomes the bootstrap installer (Anaconda's LUKS UX is mature), but the root filesystem is populated directly from a cosign-signed bootc OCI image built via BlueBuild on top of secureblue's hardened Kinoite variant. Updates from there flow through bootc upgrade — atomic A/B, instant rollback. v1.0 is bootc-only.

See docs/STRATEGY.md for the full trajectory.


Status

Active development on the install path. Three bug classes have been worked through (LUKS unlock cmdline, anaconda RPM-6.0 cmdline-mode brittleness, bootloader install via gen_grub_cfgstub); current focus is the v0.5.32 blocker list from the 2026-05-05 9-agent research wave.

What is shipping: hardening (SELinux, sysctl, USBGuard, fail2ban, firewalld), KDE black theme, Fira Code system font, 3-mode power management, single-prompt LUKS install, first-boot admin password flow, reproducible CI build, EFI+BIOS bootable live ISO.

What is planned (see docs/ROADMAP.md): Plymouth

  • SDDM polish, signed ISOs (own MOK + GPG, sigstore/cosign on OCI), AppArmor + nftables stack, veilor-update / veilor-doctor / veilor-postinstall helpers, public docs site, bootc OCI hybrid spike at v0.7, bootc-only at v1.0.

Quick install

# 1. Download the ISO (after public release; CI artifact for now)
sha256sum -c veilor-os-43-*.iso.sha256

# 2. Flash to USB. Replace /dev/sdX with your USB device — triple-check.
sudo dd if=veilor-os-43-*.iso of=/dev/sdX bs=4M status=progress conv=fsync
sync

# 3. Boot from USB, pick "Install veilor-os" from the menu.
# 4. Set a strong LUKS passphrase — the only prompt during install.
# 5. Reboot, remove USB.
# 6. On first boot: TTY prompts for an admin password (≥14 chars, mixed case,
#    digit, symbol). Once accepted, SDDM starts. Log in as `admin`.

Full install + first-boot walkthrough: docs/INSTALL.md.


What veilor-os ships

Layer Hardening
Boot Secure Boot, lockdown=integrity, slab_nomerge, randomize_kstack_offset=on, vsyscall=none. LUKS2 (aes-xts-plain64, argon2id, mem=1GB). zram swap (no disk swap, no cold-boot leak).
Kernel Locked sysctls: ptrace=2, kptr_restrict=2, dmesg_restrict=1, perf_event_paranoid=3, BPF JIT hardening, full ASLR, no SUID core dumps.
MAC SELinux enforcing, targeted policy + custom veilor-systemd module.
Network firewalld zone = drop, ssh only inbound. systemd-resolved with DNS-over-TLS (Cloudflare/Quad9 fallback), LLMNR off. NTS-authenticated chrony time.
SSH password auth off, root login off, single admin user, X11 forwarding off, MaxAuthTries 3.
Auth root locked, single admin user with sudo. pwquality minlen=14, 4 character classes. First-boot password forced via chage -d 0.
Audit auditd rules covering passwd/shadow/sudoers/ssh/cron/sysctl/kernel modules and all privileged binaries.
IDS fail2ban with sshd + pam-generic jails, journal backend, firewalld rich-rule action.
USB USBGuard daemon, default-block, empty allowlist on first boot.
Services off abrt*, cups, geoclue, avahi-daemon, bluetooth, ModemManager, gssproxy, atd, pcscd, kdeconnectd, PackageKit.
UX KDE Plasma minimal, BreezeBlackPure colour scheme, Fira Code system font, veilor-power save | mid | perf with udev AC/battery auto-switch.

Full reference: docs/HARDENING.md.


60-second tour — what's different from stock Fedora KDE

  • No Anaconda Initial Setup wizard after first boot. Single LUKS passphrase prompt is the entire install interaction. Admin user is pre-created; password is set once on TTY1, then SDDM starts.
  • Root is locked. passwd -S root reports L. There is no su - to root, ever. Use sudo.
  • No PackageKit, no Flatpak by default. Updates happen with sudo dnf upgrade on your terms, not in the background.
  • Default firewall zone is drop, not FedoraWorkstation. The only thing your machine answers is sshd on its assigned port.
  • USBGuard blocks every USB device by default. First-boot procedure: plug in everything you trust, run usbguard generate-policy, done.
  • Black-on-black KDE. Wallpaper, panel, Konsole all match. No "white flash" anywhere in the session.
  • veilor-power save | mid | perf swaps the full tuned profile, CPU governor, EPP, battery threshold, and screen-dim policy in one command. Wired to AC/battery udev events too — laptop drops to save when unplugged automatically.

How veilor-os compares

Feature veilor-os Stock Fedora KDE Kicksecure
SELinux enforcing OOTB yes yes yes
AppArmor planned (v0.5) no yes
Secure Boot yes (Fedora keys) yes (Fedora keys) configurable
LUKS2 with argon2id default optional default
Single-prompt install (LUKS only) yes no no
Root account locked by default yes no yes
firewalld default zone = drop yes no n/a (uses nftables)
USBGuard default-block yes no yes
fail2ban + auditd OOTB yes no partial
DNS-over-TLS by default yes no yes
NTS-authenticated NTP yes no yes
init_on_alloc/free (post-install) yes (planned re-enable) no yes
Telemetry / phone-home none minimal none
KDE Plasma branded theme yes (black) Breeze n/a (XFCE)
Power-profile CLI yes (3-mode) partial no
Reproducible kickstart-built ISO yes yes yes (from Debian)
Base distro Fedora 43 Fedora 43 Debian

veilor-os is not trying to compete with Whonix-style anonymity or Qubes-style isolation. It is a hardened daily-driver desktop — fast, clean, locked down, with no manual post-install hardening required.


Repo layout

kickstart/   veilor-os.ks                 full kickstart definition
build/       Containerfile + build-iso.sh    reproducible ISO builder
overlay/     files dropped into installed root via %post
scripts/     hardening, SELinux policy, theme apply, firstboot
assets/      fonts, KDE colour scheme, branding, plymouth (planned)
docs/        BUILD / INSTALL / HARDENING / POWER / ROADMAP
test/        boot-checklist + KVM runner
.github/     CI workflows + PR template + CODEOWNERS

Build instructions: docs/BUILD.md. Roadmap: docs/ROADMAP.md. Contributing: CONTRIBUTING.md. Changelog: CHANGELOG.md.


License

MIT — see LICENSE. Fira Code ships from Fedora's fira-code-fonts package under SIL OFL 1.1. Fedora packages remain under their respective licences. Kickstart, overlay, scripts, and docs in this repo are MIT.