6d77235452
We layer on their OCI image as v0.7 base; we don't redistribute their source. Drop the AGPLv3-attribution prose — that becomes relevant only if/when we ship a verbatim chunk of their config/policy in our repo. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
189 lines
9.1 KiB
Markdown
189 lines
9.1 KiB
Markdown
# veilor-os
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> **Hardened minimal Fedora KDE spin. Black-on-black. Locked down by default.**
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[](https://git.s8n.ru/veilor-org/veilor-os/actions?workflow=build-iso.yml)
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[](LICENSE)
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veilor-os is a Fedora 43 KDE Plasma remix for operators who want a clean,
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fast, opinionated desktop with serious hardening already wired in. Boot the
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ISO, set an admin password, work. No installer wizard. No initial-setup
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screen. No telemetry. No "would you like to enable X" prompts.
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The current install path is an Anaconda kickstart with a custom gum TUI
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on top. v0.7+ ships a hybrid path: the kickstart ISO becomes the bootstrap
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installer (Anaconda's LUKS UX is mature), but the root filesystem is
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populated directly from a cosign-signed bootc OCI image built via BlueBuild
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on top of [secureblue](https://github.com/secureblue/secureblue)'s
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hardened Kinoite variant. Updates from there flow through `bootc upgrade`
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— atomic A/B, instant rollback. v1.0 is bootc-only.
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See [docs/STRATEGY.md](docs/STRATEGY.md) for the full trajectory.
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---
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## Status
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Active development on the install path. Three bug classes have been
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worked through (LUKS unlock cmdline, anaconda RPM-6.0 cmdline-mode
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brittleness, bootloader install via `gen_grub_cfgstub`); current focus
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is the v0.5.32 blocker list from the
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[2026-05-05 9-agent research wave](docs/research/2026-05-05-agent-wave/README.md).
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Primary git host: <https://git.s8n.ru/veilor-org/veilor-os>. The GitHub
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mirror was disabled 2026-05-06; this repo is private-by-default on
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Forgejo. ISO builds and CI artifacts are produced by the Forgejo runner
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on nullstone — no GitHub Actions involvement.
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What is **shipping**: hardening (SELinux, sysctl, USBGuard, fail2ban,
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firewalld), KDE black theme, Fira Code system font, 3-mode power
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management, single-prompt LUKS install, first-boot admin password flow,
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reproducible CI build, EFI+BIOS bootable live ISO.
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What is **planned** (see [docs/ROADMAP.md](docs/ROADMAP.md)): Plymouth
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+ SDDM polish, signed ISOs (own MOK + GPG, sigstore/cosign on OCI),
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AppArmor + nftables stack, `veilor-update` / `veilor-doctor` /
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`veilor-postinstall` helpers, public docs site, **bootc OCI hybrid
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spike at v0.7**, **bootc-only at v1.0**.
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---
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## Quick install
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```bash
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# 1. Download the ISO from the latest Forgejo release.
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# https://git.s8n.ru/veilor-org/veilor-os/releases/tag/ci-latest
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# (rolling tag; replaced on each successful build-iso.yml run)
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sha256sum -c veilor-os-43-*.iso.sha256
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# 2. Flash to USB. Replace /dev/sdX with your USB device — triple-check.
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sudo dd if=veilor-os-43-*.iso of=/dev/sdX bs=4M status=progress conv=fsync
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sync
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# 3. Boot from USB, pick "Install veilor-os" from the menu.
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# 4. Set a strong LUKS passphrase — the only prompt during install.
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# 5. Reboot, remove USB.
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# 6. On first boot: TTY prompts for an admin password (≥14 chars, mixed case,
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# digit, symbol). Once accepted, SDDM starts. Log in as `admin`.
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```
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Full install + first-boot walkthrough: [docs/INSTALL.md](docs/INSTALL.md).
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---
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## What veilor-os ships
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| Layer | Hardening |
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|-------|-----------|
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| 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). |
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| Kernel | Locked sysctls: ptrace=2, kptr_restrict=2, dmesg_restrict=1, perf_event_paranoid=3, BPF JIT hardening, full ASLR, no SUID core dumps. |
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| MAC | SELinux **enforcing**, targeted policy + custom `veilor-systemd` module. |
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| Network | firewalld zone = `drop`, ssh only inbound. systemd-resolved with DNS-over-TLS (Cloudflare/Quad9 fallback), LLMNR off. NTS-authenticated chrony time. |
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| SSH | password auth off, root login off, single `admin` user, X11 forwarding off, MaxAuthTries 3. |
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| Auth | root **locked**, single `admin` user with sudo. pwquality minlen=14, 4 character classes. First-boot password forced via `chage -d 0`. |
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| Audit | `auditd` rules covering passwd/shadow/sudoers/ssh/cron/sysctl/kernel modules and all privileged binaries. |
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| IDS | `fail2ban` with sshd + pam-generic jails, journal backend, firewalld rich-rule action. |
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| USB | `USBGuard` daemon, **default-block**, empty allowlist on first boot. |
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| Services off | `abrt*`, `cups`, `geoclue`, `avahi-daemon`, `bluetooth`, `ModemManager`, `gssproxy`, `atd`, `pcscd`, `kdeconnectd`, `PackageKit`. |
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| UX | KDE Plasma minimal, `BreezeBlackPure` colour scheme, Fira Code system font, `veilor-power save \| mid \| perf` with udev AC/battery auto-switch. |
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Full reference: [docs/HARDENING.md](docs/HARDENING.md).
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---
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## 60-second tour — what's different from stock Fedora KDE
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- **No Anaconda Initial Setup** wizard after first boot. Single LUKS
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passphrase prompt is the entire install interaction. Admin user is
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pre-created; password is set once on TTY1, then SDDM starts.
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- **Root is locked.** `passwd -S root` reports `L`. There is no `su -`
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to root, ever. Use `sudo`.
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- **No PackageKit, no Flatpak by default.** Updates happen with
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`sudo dnf upgrade` on your terms, not in the background.
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- **Default firewall zone is `drop`**, not `FedoraWorkstation`. The only
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thing your machine answers is sshd on its assigned port.
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- **USBGuard blocks every USB device by default.** First-boot procedure:
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plug in everything you trust, run `usbguard generate-policy`,
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done.
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- **Black-on-black KDE.** Wallpaper, panel, Konsole all match. No "white
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flash" anywhere in the session.
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- **`veilor-power save | mid | perf`** swaps the full tuned profile,
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CPU governor, EPP, battery threshold, and screen-dim policy in one
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command. Wired to AC/battery udev events too — laptop drops to `save`
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when unplugged automatically.
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---
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## How veilor-os compares
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| Feature | veilor-os | Stock Fedora KDE | Kicksecure | secureblue |
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|---|:-:|:-:|:-:|:-:|
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| SELinux enforcing OOTB | yes | yes | yes | yes (custom policy) |
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| AppArmor | deferred (post-v0.6 / v0.7 LSM stack) | no | yes | no |
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| Secure Boot | yes (Fedora keys) | yes (Fedora keys) | configurable | yes (Fedora keys) |
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| LUKS2 with argon2id | default | optional | default | default (Anaconda) |
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| Single-prompt install (LUKS only) | yes | no | no | rebase via Anaconda |
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| Root account locked by default | yes | no | yes | yes |
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| firewalld default zone = drop | yes | no | n/a (nftables) | yes |
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| USBGuard default-block | yes | no | yes | yes |
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| fail2ban + auditd OOTB | yes | no | partial | partial (auditd) |
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| DNS-over-TLS by default | yes | no | yes | yes |
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| NTS-authenticated NTP | yes | no | yes | yes |
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| `init_on_alloc/free` (post-install) | yes (planned re-enable) | no | yes | yes |
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| Telemetry / phone-home | none | minimal | none | none |
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| KDE Plasma branded theme | yes (black) | Breeze | n/a (XFCE) | upstream Kinoite |
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| Power-profile CLI | yes (3-mode) | partial | no | no |
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| Hardened browser (Trivalent / Mullvad) | yes (v0.6+) | no | no | yes (Trivalent shipped) |
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| Atomic OCI image + signed base | v0.7 spike (BlueBuild) | no | no | yes (`bootc`) |
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| Userns-remap default + module sig enforce | yes | no | partial | yes |
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| Base distro | Fedora 43 (KDE) | Fedora 43 | Debian | Fedora atomic (Kinoite/Silverblue) |
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veilor-os is **not** trying to compete with Whonix-style anonymity or
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Qubes-style isolation. It is a **hardened daily-driver desktop** — fast,
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clean, locked down, with no manual post-install hardening required.
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### Relationship to secureblue
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[secureblue](https://github.com/secureblue/secureblue) is an upstream
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hardened atomic Fedora project we benchmark against and plan to **build
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on top of** at v0.7. The v0.7 BlueBuild spike uses their
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`securecore-kinoite-hardened-userns` OCI image as its base — we don't
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ship their source code in this repo, we layer veilor branding,
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theming, the gum installer, and the kickstart bootstrap on top of
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their already-signed image.
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Where veilor-os differs is the install path: a kickstart-installed
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flat install for v0.5.x (single-prompt LUKS flow, gum TUI, Anaconda
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underneath), a hybrid kickstart-bootstrap + secureblue-OCI image at
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v0.7, and a fully OCI / `bootc upgrade` path at v1.0. Thanks to the
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secureblue maintainers for the upstream work — we're a friendlier
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install front-end on top of it, not a fork.
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---
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## Repo layout
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```
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kickstart/ veilor-os.ks full kickstart definition
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build/ Containerfile + build-iso.sh reproducible ISO builder
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overlay/ files dropped into installed root via %post
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scripts/ hardening, SELinux policy, theme apply, firstboot
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assets/ fonts, KDE colour scheme, branding, plymouth (planned)
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docs/ BUILD / INSTALL / HARDENING / POWER / ROADMAP
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test/ boot-checklist + KVM runner
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.github/ CI workflows + PR template + CODEOWNERS
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```
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Build instructions: [docs/BUILD.md](docs/BUILD.md).
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Roadmap: [docs/ROADMAP.md](docs/ROADMAP.md).
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Contributing: [CONTRIBUTING.md](CONTRIBUTING.md).
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Changelog: [CHANGELOG.md](CHANGELOG.md).
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---
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## License
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MIT — see [LICENSE](LICENSE). Fira Code ships from Fedora's
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`fira-code-fonts` package under SIL OFL 1.1. Fedora packages remain
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under their respective licences. Kickstart, overlay, scripts, and
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docs in this repo are MIT.
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