Stage 5: das-update and das-welcome (0.3.0)
das-tools (Go, GTK 3 via gotk3): - das-update: update window, tray icon when updates are available, --cli mode; xbps-install -Su between a snapper pre/post snapshot pair, privileged part through pkexec, rollback and reboot hints - das-welcome: first-login window with install (live), language, home folder renaming, updates, settings and help das-settings 0.3.0: create home folders with translated names. xdg-user-dirs 0.20 only looks for translations in the first XDG_DATA_DIRS entry with a locale directory (/usr/local/share/locale). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Claude Opus 5.5
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## Das OS
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### _A light, friendly Void Linux–based desktop with Xfce and a Ukrainian touch_
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[](https://voidlinux.org) [](https://xfce.org) [](https://docs.voidlinux.org/config/services/) [](https://go.dev) [](#)
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[](https://voidlinux.org) [](https://xfce.org) [](https://docs.voidlinux.org/config/services/) [](https://go.dev) [](#)
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🇺🇦 [Українська версія](README_ua.md)
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- [Live ISO](#LiveISO) that boots on UEFI and BIOS straight into the desktop
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- [Graphical installer](#Installer) (Calamares) set up for Void and runit
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- [Snapshots and rollback](#Snapshots): hourly Btrfs snapshots, bootable from the GRUB menu
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- [System update](#Update) with a snapshot taken before it: a window, a tray icon and a terminal mode
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- [Welcome window](#Welcome) at the first login: language, home folders, updates and help
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- [Das OS look](#Look): light and dark themes, generated window frames, wallpapers and logo
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- [Desktop defaults](#Defaults) for Xfce that don't overwrite stock files
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- [Own package repository](#Repository) built by xbps-src from in-tree templates
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@@ -19,7 +21,7 @@ Void Linux is fast, simple and independent: runit instead of systemd, and its ow
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### ⭐ Advantages
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- **Void underneath** – a fast runit boot, the xbps package manager and fresh software, with none of the manual setup.
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- **Safe updates** – the system can return to any snapshot, and personal files in `/home` are never part of a rollback.
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- **Safe updates** – `das-update` takes a snapshot before every update, the system can return to any snapshot, and personal files in `/home` are never part of a rollback.
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- **Light** – no systemd, plus Xfce, LightDM and PipeWire, so it runs well on older laptops too.
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- **Nothing hidden** – all customisations ship as ordinary xbps packages, so `xbps-query -f das-settings` shows exactly what changed.
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- **Users keep control** – defaults live in `/etc/xdg/das`, so a user's own settings always take precedence and upgrades never reset them.
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<td align="center"><i>Disk setup with Btrfs</i></td>
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<td align="center"><i>Snapshots in the boot menu</i></td>
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</tr>
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<tr>
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<td align="center"><img src="images/welcome.png" width="300" alt="Welcome window" /></td>
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<td align="center"><img src="images/update.png" width="300" alt="System update" /></td>
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<td></td>
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</tr>
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<tr>
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<td align="center"><i>Welcome window</i></td>
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<td align="center"><i>System update</i></td>
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<td></td>
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</tr>
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</table>
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### 📌 Using
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- `sudo snapper-rollback <number>` makes the snapshot the new root (the old one is kept as `@<date>`). The change takes effect after a reboot. It works both from the running system and from a booted snapshot.
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- Members of `wheel` can list snapshots without sudo: `snapper list`.
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#### System update<a id='Update' />
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**_`das-update` installs updates between a pair of snapshots, so a bad update can be undone from the boot menu._**
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- Before updating, it creates a snapper *pre* snapshot, then runs `xbps-install -Su` (updating xbps itself first when needed), then creates the paired *post* snapshot, also when the update failed.
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- If the *pre* snapshot cannot be created, nothing is installed. Without Btrfs (ext4, XFS) it updates without a snapshot and says so.
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- When it finishes, it shows the snapshot number and how to roll back to it, and asks for a reboot when the kernel, glibc, runit or other core packages were updated.
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- The *System update* window lists the packages with the installed and new versions and shows the xbps output. The privileged part runs through pkexec (polkit action `ua.org.das.update`).
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- In the background it checks for updates 2 minutes after login and then every 6 hours, without root. The tray icon and a notification appear only when updates are available. A click opens the window, and a right click opens a menu with *Check now*. The check is off in the live session.
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- `das-update --cli` does the same in a terminal (servers, ssh). It asks before installing (`-y` skips the question) and runs itself again through sudo.
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#### Welcome window<a id='Welcome' />
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**_`das-welcome` opens at the first login and gathers the first steps in one place._**
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- In the live session it offers to install Das OS.
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- The interface language can be chosen when the system has more than one locale built. It is stored in AccountsService and `~/.dmrc` and takes effect at the next login.
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- If the home folders still have English names (`Documents`, `Downloads`…), it offers to rename them to the system language, together with `user-dirs.dirs` and the file manager bookmarks. Folders the user moved, and those whose new name is already taken, are left alone.
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- It links to the system update, Xfce settings and help.
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- It opens by itself only once. The *Show at login* check box keeps it opening at every login.
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#### Das OS look<a id='Look' />
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**_A modern minimal style with a blue and yellow eight-petal star from Ukrainian embroidery._**
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- The GTK themes `DasOS` and `DasOS-Dark` build on adw-gtk3 and add the Das OS accent colours. They also style the Xfce panel, which adw-gtk3 leaves black.
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- One bottom panel holds the Whisker menu, window buttons, tray, keyboard layout, volume, notifications, clock and a show-desktop button.
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- At the first login, `das-session-init` sets the wallpaper on every connected monitor, because Xfce stores wallpapers per monitor name.
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- LightDM uses the GTK greeter with the Das OS theme and wallpaper.
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- Home folders get names in the session language. xdg-user-dirs 0.20 looks for its translations only in the first `XDG_DATA_DIRS` entry that has a `locale` directory, the empty `/usr/local/share/locale`, so it created English folders. `/etc/X11/xinit/xinitrc.d/50-das-user-dirs` creates them before the Xfce session with a lookup path that finds the translations.
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#### Own package repository<a id='Repository' />
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**_Every Das OS file is installed and updated by xbps._**
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- `srcpkgs/das-theme` contains the themes, xfwm4 frames, wallpapers and logo.
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- `srcpkgs/das-settings` contains the Xfce, LightDM and session defaults.
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- `srcpkgs/das-tools` contains `das-update` and `das-welcome` (Go, GTK 3 through gotk3) with their menu entries, autostart entries and polkit action.
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- `srcpkgs/das-snapshots` contains the snapper configuration, `das-snapper-setup` and the dracut module for booting snapshots.
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- `srcpkgs/das-installer` contains the Calamares settings, branding and installation scripts. It exists only on the live ISO.
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- `srcpkgs/calamares`, `srcpkgs/adw-gtk3` and `srcpkgs/font-jetbrains-mono` package upstream releases that Void does not have.
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3. `make qemu` boots the newest ISO with UEFI. `make qemu-bios` uses legacy BIOS, and `make qemu-disk` also attaches a 20 GB virtual disk to install on.
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### 🚀 Building the application
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Requirements: Linux with Docker (the user must be in the `docker` group), QEMU and OVMF for testing, and Go 1.22+ for `make test`. About 10 GB of free disk space.
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Requirements: Linux with Docker (the user must be in the `docker` group), QEMU and OVMF for testing, and Go 1.24+ with the GTK 3 development files for `make test`. About 10 GB of free disk space.
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```shell
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make iso # build packages and the live ISO (the first run downloads ~2 GB)
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make qemu # boot it in QEMU with UEFI
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@@ -128,6 +159,6 @@ make clean # remove build output, keep the download cache
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```
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The ISO appears in `out/iso/dasos-<version>-x86_64.iso`. Write it to a USB stick with `dd` or Ventoy.
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**Note:** Das OS is an early version (0.2.0). The Go utilities `das-welcome` and `das-update` (an update with a snapshot taken before it), the developer profile and signed repository hosting are planned for upcoming stages. Until the repository is hosted, an installed system gets updates from Void only. Das OS is based on Void Linux but is not affiliated with it.
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**Note:** Das OS is an early version (0.3.0). A server image, the developer profile and signed repository hosting are planned for upcoming stages. Until the repository is hosted, an installed system gets updates from Void only. Das OS is based on Void Linux but is not affiliated with it.
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###### _Made by -=:dAs:=-_
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