From d30d505f7d2016928c15c44fb12cf6ffa22aac4d Mon Sep 17 00:00:00 2001
From: rickpeters <rickpeters@upriser.nl>
Date: Mon, 28 Sep 2026 19:03:28 +0200
Subject: [PATCH 1/8] chore: Version 2.9.0

---
 CHANGELOG.md | 4 ++++
 steamify.sh  | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 48e5918..8b187f4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ All notable changes, per version and per commit. Versions follow
 `steamify.sh`. Versions before 0.7.0 were numbered afterwards,
 one per merged pull request.
 
+## 2.9.0 - 2026-09-28
+
+- **chore: Version 2.9.0**
+
 ## 2.8.0 - 2026-09-28
 
 - **chore: Version 2.8.0**
diff --git a/steamify.sh b/steamify.sh
index f9662b4..7337f10 100755
--- a/steamify.sh
+++ b/steamify.sh
@@ -15,7 +15,7 @@
 set -uo pipefail
 
 # Release version, see CHANGELOG.md.
-VERSION=2.8.0
+VERSION=2.9.0
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 

From ce71b34b0d87c38e212970335bc3be4fc9264deb Mon Sep 17 00:00:00 2001
From: rickpeters <rickpeters@upriser.nl>
Date: Mon, 28 Sep 2026 19:03:54 +0200
Subject: [PATCH 2/8] feat: Steam's System settings and About this System like
 on SteamOS: OS name, Steamify as OS variant and version, serial number and
 Wi-Fi backend on a Steam Machine

---
 AGENTS.md                        |  9 ++++++
 CHANGELOG.md                     |  3 +-
 lib/backend.sh                   |  1 +
 lib/login-manager.sh             | 55 ++++++++++++++++++++++++++++++++
 lib/menu.sh                      |  5 +--
 lib/steam-machine.sh             | 44 +++++++++++++++++++++++++
 patches/README.md                |  1 +
 patches/steamify-os-release.hook | 15 +++++++++
 patches/steamify-os-release.sh   | 11 +++++++
 9 files changed, 141 insertions(+), 3 deletions(-)
 create mode 100644 patches/steamify-os-release.hook
 create mode 100644 patches/steamify-os-release.sh

diff --git a/AGENTS.md b/AGENTS.md
index 699aace..250e263 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -311,6 +311,15 @@ gamescope and the Plasma desktop. Primary target: the Valve Steam Machine
   `steamify.sh --boot gamescope|desktop` on its own (2.7.0, for scripts) only
   switches `boot` on an installed conversion: `WANTED` is `CURRENT` plus
   that, so no updates or removals a normal run would pick.
+- OS name for Steam (SteamOS conversion, 2.9.0): Steam's System settings
+  show `lsb_release -d`, so only `DISTRIB_DESCRIPTION` in `/etc/lsb-release`
+  becomes "CachyOS with Steamify" (a pacman hook, `zz-steamify-os-release`,
+  sets it again after cachyos-hooks resets it). In `/etc/os-release` only
+  `VARIANT`/`VARIANT_ID`/`VERSION_ID` (Steam's OS version, refreshed by
+  `os_version_refresh` after every run that changes something); never `NAME`
+  or `PRETTY_NAME`: limine-snapper-sync finds the boot entries by the OS name
+  ("Target OS name ... not found in /boot/limine.conf"). As a guard,
+  `/etc/default/limine` gets `TARGET_OS_NAME="CachyOS"` when it has none.
 - `Relogin=true` means a gamescope that fails to start is relaunched in a
   tight loop; keep that in mind when changing session handling.
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b187f4..a7604a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,8 @@ one per merged pull request.
 
 ## 2.9.0 - 2026-09-28
 
-- **chore: Version 2.9.0**
+- `d30d505` **chore: Version 2.9.0**
+- **feat: Steam's System settings and About this System like on SteamOS: OS name "CachyOS with Steamify" (lsb-release, kept through CachyOS updates by a pacman hook), Steamify as OS variant and version (os-release VARIANT/VERSION_ID; NAME/PRETTY_NAME stay CachyOS's for limine, TARGET_OS_NAME pinned), "CachyOS Linux with Steamify" in About this System; on a Steam Machine the serial number and Steam's Wi-Fi backend setting (existing installs get it as an update)**
 
 ## 2.8.0 - 2026-09-28
 
diff --git a/lib/backend.sh b/lib/backend.sh
index 05be3c1..1e351ec 100644
--- a/lib/backend.sh
+++ b/lib/backend.sh
@@ -177,6 +177,7 @@ backend_apply() {
         if backend_run_component "$c" enable; then is_action "$c" || feature_record "$c" enable; else failed+=("$c"); fi
     done
     feature_record_unticked
+    os_version_refresh
     [[ " ${TO_DISABLE[*]} ${TO_ENABLE[*]} " =~ \ (gaming|single|boot|kpin)\  ]] && RESTART_FOR_LOGIN=true
     backend_event finished "\"failed\":$(json_list "${failed[@]}"),\"restart\":$(restart_needed && echo true || echo false)"
 }
diff --git a/lib/login-manager.sh b/lib/login-manager.sh
index d2c4ea8..3a44e2a 100644
--- a/lib/login-manager.sh
+++ b/lib/login-manager.sh
@@ -18,6 +18,55 @@ gaming_status() {
     esac
 }
 
+# What Steam shows in its System settings: the OS name (`lsb_release -d`:
+# DISTRIB_DESCRIPTION in /etc/lsb-release) and Steamify as the OS variant and
+# version (os-release's VARIANT/VERSION_ID; its NAME and PRETTY_NAME stay
+# CachyOS's, which limine-snapper-sync finds the boot entries by).
+# cachyos-hooks resets lsb-release on updates, so our hook sets it again.
+OS_NAME_SCRIPT=/usr/local/libexec/steamify-os-release
+OS_NAME_HOOK=/etc/pacman.d/hooks/zz-steamify-os-release.hook
+# limine's tools take the OS name from TARGET_OS_NAME, else os-release's
+# PRETTY_NAME: pinned to CachyOS, the boot entries never depend on os-release.
+LIMINE_DEFAULTS=/etc/default/limine
+
+os_name_enable() {
+    patch_file steamify-os-release.sh | fill VERSION="$VERSION" | sudo install -Dm755 /dev/stdin "$OS_NAME_SCRIPT" &&
+        patch_file steamify-os-release.hook | fill SCRIPT="$OS_NAME_SCRIPT" |
+            sudo install -Dm644 /dev/stdin "$OS_NAME_HOOK" &&
+        sudo "$OS_NAME_SCRIPT" || { err "Setting the OS name for Steam failed."; return 1; }
+    if [[ -f "$LIMINE_DEFAULTS" ]] && ! grep -q '^TARGET_OS_NAME=' "$LIMINE_DEFAULTS"; then
+        backup_file "$LIMINE_DEFAULTS"
+        printf '%s\n' 'TARGET_OS_NAME="CachyOS"' | sudo tee -a "$LIMINE_DEFAULTS" > /dev/null
+        state_set gaming limine_target 1
+    fi
+    return 0
+}
+
+os_name_disable() {
+    sudo rm -f "$OS_NAME_HOOK" "$OS_NAME_SCRIPT"
+    [[ -f /etc/os-release ]] && sudo sed -i -e '/^VARIANT=/d' -e '/^VARIANT_ID=/d' -e '/^VERSION_ID=/d' /etc/os-release
+    # CachyOS's own values back, the way its hooks write them.
+    if [[ -x /usr/share/libalpm/scripts/cachyos-branding ]]; then
+        sudo /usr/share/libalpm/scripts/cachyos-branding os-release
+        sudo /usr/share/libalpm/scripts/cachyos-branding lsb-release
+    fi
+    if [[ -n "$(state_get gaming limine_target)" ]]; then
+        sudo sed -i '/^TARGET_OS_NAME="CachyOS"$/d' "$LIMINE_DEFAULTS"
+        state_set gaming limine_target ""
+    fi
+    return 0
+}
+
+os_version_refresh() {
+    # After every run that changed something (sudo is at hand then): Steam's
+    # OS version follows Steamify's, not just the one that set it up. Silent:
+    # the app reads the backend's stdout as JSON.
+    gaming_status 2>/dev/null || return 0
+    grep -qx "VERSION_ID=$VERSION" /etc/os-release 2>/dev/null && return 0
+    os_name_enable > /dev/null 2>&1
+    return 0
+}
+
 gaming_enable() {
     # LOGIN_MANAGER (sddm with single user, else plasmalogin) is set by the
     # menu. Re-running with the other value switches over cleanly.
@@ -37,6 +86,10 @@ gaming_enable() {
     esac
     create_desktop_shortcut
     steam_enable
+    # System Settings' About this System: the name KInfoCenter shows instead
+    # of os-release's (package-owned, so not edited).
+    kset gaming kcm-about-distrorc General Name "CachyOS Linux with Steamify"
+    os_name_enable || return 1
 }
 
 gaming_disable() {
@@ -49,6 +102,8 @@ gaming_disable() {
     switch_to_plasmalogin
     remove_desktop_shortcut
     steam_disable
+    krevert gaming
+    os_name_disable
     ok "The PC boots to the normal login screen again (from the next boot)."
 }
 
diff --git a/lib/menu.sh b/lib/menu.sh
index 9fcebde..4356cee 100644
--- a/lib/menu.sh
+++ b/lib/menu.sh
@@ -25,8 +25,8 @@ NO_PRESELECT=(boot cec kpin hdmi)
 # FEATURE_BASELINE.
 FEATURE_BASELINE=2.1.0
 declare -A FEATURE_VERSION=(
-    [gaming]=2.1.0 [boot]=2.1.0 [theme]=2.1.0 [glyphs]=2.1.0 [single]=2.1.0
-    [launcher]=2.1.0 [cec]=2.7.0 [machine]=2.2.0 [poweroff]=2.2.0 [vram]=2.3.0 [notify]=2.5.0 [steamgame]=2.5.1
+    [gaming]=2.9.0 [boot]=2.1.0 [theme]=2.1.0 [glyphs]=2.1.0 [single]=2.1.0
+    [launcher]=2.1.0 [cec]=2.7.0 [machine]=2.9.0 [poweroff]=2.2.0 [vram]=2.3.0 [notify]=2.5.0 [steamgame]=2.5.1
     [kpin]=2.1.0 [hdmi]=2.1.0
 )
 
@@ -465,5 +465,6 @@ apply_changes() {
         if "${c}_enable"; then is_action "$c" || feature_record "$c" enable; else failed+=("$c"); fi
     done
     feature_record_unticked
+    os_version_refresh
     FAILED=("${failed[@]}")
 }
diff --git a/lib/steam-machine.sh b/lib/steam-machine.sh
index 66fe10d..ceb6ed7 100644
--- a/lib/steam-machine.sh
+++ b/lib/steam-machine.sh
@@ -378,6 +378,46 @@ machine_status() {
     pacman -Qi leds-valve-dkms-git >/dev/null 2>&1 && pacman -Qi steamos-manager >/dev/null 2>&1
 }
 
+# Steam (steamwebhelper) reads the serial number for its System settings
+# straight from DMI, which the kernel makes root-only; SteamOS makes it
+# readable. A tmpfiles rule does that at every boot.
+SERIAL_TMPFILES=/etc/tmpfiles.d/steamify-serial.conf
+
+# Steam's Wi-Fi backend switch goes through steamos-manager, which reads and
+# writes the backend in this file (SteamOS ships it); without it, it fails
+# with "Wi-Fi backend not found in config". wpa_supplicant is what
+# NetworkManager uses on CachyOS anyway. Not written when someone set a
+# backend themselves.
+WIFI_BACKEND_CONF=/etc/NetworkManager/conf.d/99-valve-wifi-backend.conf
+
+wifi_backend_enable() {
+    [[ -f "$WIFI_BACKEND_CONF" ]] && return 0
+    grep -rqs '^wifi.backend=' /etc/NetworkManager/NetworkManager.conf /etc/NetworkManager/conf.d && return 0
+    printf '%s\n' "# Written by Steamify: Steam's Wi-Fi backend setting (steamos-manager)." \
+        '[device]' 'wifi.backend=wpa_supplicant' | sudo install -Dm644 /dev/stdin "$WIFI_BACKEND_CONF" ||
+        { err "Writing the Wi-Fi backend setting failed."; return 1; }
+    state_set machine wifi_backend 1
+}
+
+wifi_backend_disable() {
+    [[ -n "$(state_get machine wifi_backend)" ]] || return 0
+    sudo rm -f "$WIFI_BACKEND_CONF"
+    state_clear machine
+}
+
+serial_enable() {
+    printf '%s\n' "# Written by Steamify: Steam shows the serial number, like on SteamOS." \
+        'z /sys/class/dmi/id/product_serial 0444 - - -' | sudo tee "$SERIAL_TMPFILES" > /dev/null &&
+        sudo systemd-tmpfiles --create "$SERIAL_TMPFILES" ||
+        { err "Making the serial number readable for Steam failed."; return 1; }
+}
+
+serial_disable() {
+    sudo rm -f "$SERIAL_TMPFILES"
+    sudo chmod 0400 /sys/class/dmi/id/product_serial 2>/dev/null
+    return 0
+}
+
 machine_enable() {
     # The pinned kernel first when it's wanted too, so DKMS builds the LED
     # driver for it once, instead of for the current kernel and then again.
@@ -403,6 +443,8 @@ EOF
     # for hardware and controller settings; it knows the Steam Machine from its DMI data.
     info "Installing hardware manager packages (steamos-manager & inputplumber)..."
     sudo pacman -S --needed --noconfirm steamos-manager inputplumber || { err "Installing hardware manager packages failed."; return 1; }
+    serial_enable || return 1
+    wifi_backend_enable || return 1
     sudo systemctl enable --now inputplumber.service
     sudo systemctl enable --now steamos-manager.service
     user_systemctl enable steamos-manager.service 2>/dev/null
@@ -426,6 +468,8 @@ machine_disable() {
     sudo systemctl disable --now steamos-manager.service 2>/dev/null
     sudo systemctl disable --now inputplumber.service 2>/dev/null
     sudo pacman -Rns --noconfirm steamos-manager inputplumber 2>/dev/null
+    serial_disable
+    wifi_backend_disable
     sudo rm -f "$LED_UDEV_RULE" /etc/modules-load.d/leds-valve.conf
     sudo udevadm control --reload
     sudo modprobe -r leds-valve 2>/dev/null
diff --git a/patches/README.md b/patches/README.md
index ffed613..256f41c 100644
--- a/patches/README.md
+++ b/patches/README.md
@@ -13,4 +13,5 @@ read and reviewed on their own. `lib/*.sh` reads them with `patch_file
 | `steamify-fremont-poweroff.dkms.conf`, `steamify-cros-ec-cec.dkms.conf` | `lib/fremont-poweroff.sh`, `lib/cec.sh` | The DKMS modules' `dkms.conf` (`fill NAME=... VERSION=...`) |
 | `steam-shortcuts.py` | `lib/steam-game.sh` (Add as non-Steam game) | Reads and writes Steam's binary `shortcuts.vdf` (find, add or update, remove) |
 | `steamify-notifier.py` | `lib/update-notifier.sh` (Update notifications) | The daily check: notification and tray icon when there's a new release |
+| `steamify-os-release.sh`, `steamify-os-release.hook` | `lib/login-manager.sh` (SteamOS conversion) | Sets the OS name Steam shows ("CachyOS with Steamify": `DISTRIB_DESCRIPTION` in `/etc/lsb-release`, which `lsb_release -d` gives Steam; never `/etc/os-release`, whose `PRETTY_NAME` limine-snapper-sync needs); the pacman hook runs it again after cachyos-hooks resets it (`fill SCRIPT=...`) |
 | `cros-ec-cec-single-port.patch` | `lib/cec.sh` (HDMI-CEC) | Makes Valve's Steam Machine CEC driver find amdgpu's HDMI port |
diff --git a/patches/steamify-os-release.hook b/patches/steamify-os-release.hook
new file mode 100644
index 0000000..c4ce503
--- /dev/null
+++ b/patches/steamify-os-release.hook
@@ -0,0 +1,15 @@
+# Installed by Steamify CachyOS (SteamOS conversion): runs after
+# cachyos-hooks' lsb-release/cachyos-branding hooks (hooks run in file name
+# order).
+[Trigger]
+Operation = Install
+Operation = Upgrade
+Type = Package
+Target = filesystem
+Target = lsb-release
+Target = cachyos-hooks
+
+[Action]
+Description = Steamify: the OS name Steam shows (CachyOS with Steamify)
+When = PostTransaction
+Exec = @SCRIPT@
diff --git a/patches/steamify-os-release.sh b/patches/steamify-os-release.sh
new file mode 100644
index 0000000..07d4def
--- /dev/null
+++ b/patches/steamify-os-release.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+# Installed by Steamify CachyOS (SteamOS conversion): what Steam shows in its
+# System settings. The OS name is `lsb_release -d` (DISTRIB_DESCRIPTION in
+# /etc/lsb-release); the version comes from /etc/os-release's VARIANT and
+# VERSION_ID. CachyOS's hooks reset lsb-release on updates of lsb-release and
+# cachyos-hooks; the zz-steamify-os-release hook runs this after them.
+# os-release's NAME and PRETTY_NAME stay CachyOS's: limine-snapper-sync finds
+# the boot entries by the OS name.
+sed -i 's|^DISTRIB_DESCRIPTION=.*$|DISTRIB_DESCRIPTION="CachyOS with Steamify"|' /etc/lsb-release
+sed -i -e '/^VARIANT=/d' -e '/^VARIANT_ID=/d' -e '/^VERSION_ID=/d' /etc/os-release
+printf '%s\n' 'VARIANT="Steamify"' 'VARIANT_ID=steamify' 'VERSION_ID=@VERSION@' >> /etc/os-release

From 07a94cd2746a3fe912094d29127f1e76c510c200 Mon Sep 17 00:00:00 2001
From: rickpeters <rickpeters@upriser.nl>
Date: Mon, 28 Sep 2026 19:03:56 +0200
Subject: [PATCH 3/8] =?UTF-8?q?fix(ui):=20The=20progress=20screen's=20?=
 =?UTF-8?q?=E2=9C=93=20and=20!=20stand=20upright:=20only=20a=20dot=20on=20?=
 =?UTF-8?q?the=20circle=20spins=20while=20a=20step=20runs=20(they=20kept?=
 =?UTF-8?q?=20the=20spinner's=20last=20angle)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 CHANGELOG.md              | 3 ++-
 ui/qml/ApplyingScreen.qml | 6 +++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b187f4..bab3f54 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,8 @@ one per merged pull request.
 
 ## 2.9.0 - 2026-09-28
 
-- **chore: Version 2.9.0**
+- `d30d505` **chore: Version 2.9.0**
+- **fix(ui): The progress screen's ✓ and ! stand upright: only a dot on the circle spins while a step runs (they kept the spinner's last angle)**
 
 ## 2.8.0 - 2026-09-28
 
diff --git a/ui/qml/ApplyingScreen.qml b/ui/qml/ApplyingScreen.qml
index 56c69b6..64a5d7a 100644
--- a/ui/qml/ApplyingScreen.qml
+++ b/ui/qml/ApplyingScreen.qml
@@ -35,7 +35,11 @@ Item {
                         border.width: step.st === "wait" || step.st === "run" ? 2 : 0; border.color: step.st === "run" ? Theme.accent : "#343f50"
                         Text { anchors.centerIn: parent; text: step.st === "ok" ? "✓" : (step.st === "fail" ? "!" : ""); color: step.st === "ok" ? Theme.good : Theme.bad
                                font.pixelSize: 13; font.weight: Font.Bold }
-                        RotationAnimator on rotation { running: step.st === "run"; from: 0; to: 360; duration: 1000; loops: Animation.Infinite } }
+                        // Only this dot turns while the step runs: ✓ and ! never rotate
+                        // (an animator leaves its item at whatever angle it stopped).
+                        Item { anchors.fill: parent; visible: step.st === "run"
+                            Rectangle { width: 6; height: 6; radius: 3; color: Theme.accent; x: parent.width / 2 - 3; y: -3 }
+                            RotationAnimator on rotation { running: step.st === "run"; from: 0; to: 360; duration: 1000; loops: Animation.Infinite } } }
                     Row { width: 380; anchors.verticalCenter: parent.verticalCenter; spacing: 10
                         // Boot into's label is its prefix already: "Boot into desktop", not "Boot into Boot into".
                         Text { text: step.modelData.id === "boot" ? (Texts.actions[step.modelData.action] || [])[3] + Texts.actions[step.modelData.action][0].toLowerCase()

From 435f69c15123248547f5abd788fdbd0e52d0b183 Mon Sep 17 00:00:00 2001
From: rickpeters <rickpeters@upriser.nl>
Date: Mon, 28 Sep 2026 19:14:43 +0200
Subject: [PATCH 4/8] feat: Steam's System settings: the OS name stays CachyOS
 (no renaming, also not in About this System), Steamify <version> as the
 variant, the SteamOS release it follows as the codename (steamos-3.9)

---
 AGENTS.md                        | 19 ++++++++--------
 CHANGELOG.md                     |  3 ++-
 lib/login-manager.sh             | 38 +++++++++++++++++++++++---------
 patches/README.md                |  2 +-
 patches/steamify-os-release.hook |  5 ++---
 patches/steamify-os-release.sh   | 18 +++++++--------
 6 files changed, 51 insertions(+), 34 deletions(-)

diff --git a/AGENTS.md b/AGENTS.md
index 250e263..92d31a4 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -311,15 +311,16 @@ gamescope and the Plasma desktop. Primary target: the Valve Steam Machine
   `steamify.sh --boot gamescope|desktop` on its own (2.7.0, for scripts) only
   switches `boot` on an installed conversion: `WANTED` is `CURRENT` plus
   that, so no updates or removals a normal run would pick.
-- OS name for Steam (SteamOS conversion, 2.9.0): Steam's System settings
-  show `lsb_release -d`, so only `DISTRIB_DESCRIPTION` in `/etc/lsb-release`
-  becomes "CachyOS with Steamify" (a pacman hook, `zz-steamify-os-release`,
-  sets it again after cachyos-hooks resets it). In `/etc/os-release` only
-  `VARIANT`/`VARIANT_ID`/`VERSION_ID` (Steam's OS version, refreshed by
-  `os_version_refresh` after every run that changes something); never `NAME`
-  or `PRETTY_NAME`: limine-snapper-sync finds the boot entries by the OS name
-  ("Target OS name ... not found in /boot/limine.conf"). As a guard,
-  `/etc/default/limine` gets `TARGET_OS_NAME="CachyOS"` when it has none.
+- What Steam's System settings show (SteamOS conversion, 2.9.0): the OS name
+  stays CachyOS's everywhere (legal clarity; Steam reads `lsb_release -d`,
+  not touched). `/etc/os-release` gets only `VARIANT="Steamify <version>"`,
+  `VARIANT_ID`, `VERSION_ID` and `VERSION_CODENAME=steamos-X.Y` (Valve's
+  newest jupiter repo), refreshed by `os_version_refresh` after every run that
+  changes something; a pacman hook (`zz-steamify-os-release`) runs after
+  cachyos-hooks. Never `NAME` or `PRETTY_NAME`: limine-snapper-sync finds the
+  boot entries by the OS name ("Target OS name ... not found in
+  /boot/limine.conf"); `/etc/default/limine` gets `TARGET_OS_NAME="CachyOS"`
+  when it has none, as a guard.
 - `Relogin=true` means a gamescope that fails to start is relaunched in a
   tight loop; keep that in mind when changing session handling.
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b506b97..413c9f9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,8 +8,9 @@ one per merged pull request.
 ## 2.9.0 - 2026-09-28
 
 - `d30d505` **chore: Version 2.9.0**
+- **feat: Steam's System settings: the OS name stays CachyOS (no renaming, also not in About this System), Steamify <version> as the variant, the SteamOS release it follows as the codename (steamos-3.9)**
 - `ce71b34` **feat: Steam's System settings and About this System like on SteamOS: OS name "CachyOS with Steamify" (lsb-release, kept through CachyOS updates by a pacman hook), Steamify as OS variant and version (os-release VARIANT/VERSION_ID; NAME/PRETTY_NAME stay CachyOS's for limine, TARGET_OS_NAME pinned), "CachyOS Linux with Steamify" in About this System; on a Steam Machine the serial number and Steam's Wi-Fi backend setting (existing installs get it as an update)**
-- **fix(ui): The progress screen's ✓ and ! stand upright: only a dot on the circle spins while a step runs (they kept the spinner's last angle)**
+- `07a94cd` **fix(ui): The progress screen's ✓ and ! stand upright: only a dot on the circle spins while a step runs (they kept the spinner's last angle)**
 
 ## 2.8.0 - 2026-09-28
 
diff --git a/lib/login-manager.sh b/lib/login-manager.sh
index 3a44e2a..510da38 100644
--- a/lib/login-manager.sh
+++ b/lib/login-manager.sh
@@ -18,22 +18,40 @@ gaming_status() {
     esac
 }
 
-# What Steam shows in its System settings: the OS name (`lsb_release -d`:
-# DISTRIB_DESCRIPTION in /etc/lsb-release) and Steamify as the OS variant and
-# version (os-release's VARIANT/VERSION_ID; its NAME and PRETTY_NAME stay
-# CachyOS's, which limine-snapper-sync finds the boot entries by).
-# cachyos-hooks resets lsb-release on updates, so our hook sets it again.
+# What Steam shows in its System settings besides the OS name (which stays
+# CachyOS's, for legal clarity and because limine-snapper-sync finds the boot
+# entries by it): Steamify as the variant and version, the SteamOS release it
+# follows as the codename (os-release VARIANT/VERSION_ID/VERSION_CODENAME).
 OS_NAME_SCRIPT=/usr/local/libexec/steamify-os-release
 OS_NAME_HOOK=/etc/pacman.d/hooks/zz-steamify-os-release.hook
 # limine's tools take the OS name from TARGET_OS_NAME, else os-release's
 # PRETTY_NAME: pinned to CachyOS, the boot entries never depend on os-release.
 LIMINE_DEFAULTS=/etc/default/limine
 
+steamos_codename() {
+    # The SteamOS release Steamify follows: Valve's newest jupiter-X.Y repo
+    # (where the SteamOS extras come from), as a codename (os-release allows
+    # no spaces or capitals: steamos-3.9). Offline (e.g. in the installer):
+    # the one set before, if any.
+    local v
+    v="$(curl -fsL --max-time 15 "$VALVE_MIRROR/" 2>/dev/null | grep -oE 'jupiter-[0-9]+\.[0-9]+/' | tr -d / | sort -V | tail -n 1)"
+    if [[ -n "$v" ]]; then echo "steamos-${v#jupiter-}"
+    else sed -n 's/^VERSION_CODENAME=//p' /etc/os-release 2>/dev/null; fi
+}
+
 os_name_enable() {
-    patch_file steamify-os-release.sh | fill VERSION="$VERSION" | sudo install -Dm755 /dev/stdin "$OS_NAME_SCRIPT" &&
+    # 2.9.0 pre-releases renamed the OS itself; the name stays CachyOS's.
+    if grep -q '^DISTRIB_DESCRIPTION=.*with Steamify' /etc/lsb-release 2>/dev/null &&
+        [[ -x /usr/share/libalpm/scripts/cachyos-branding ]]; then
+        sudo /usr/share/libalpm/scripts/cachyos-branding lsb-release
+    fi
+    [[ -n "$(kreadconfig6 --file kcm-about-distrorc --group General --key Name 2>/dev/null)" ]] &&
+        kset gaming kcm-about-distrorc General Name --delete
+    patch_file steamify-os-release.sh | fill VERSION="$VERSION" CODENAME="$(steamos_codename)" |
+        sudo install -Dm755 /dev/stdin "$OS_NAME_SCRIPT" &&
         patch_file steamify-os-release.hook | fill SCRIPT="$OS_NAME_SCRIPT" |
             sudo install -Dm644 /dev/stdin "$OS_NAME_HOOK" &&
-        sudo "$OS_NAME_SCRIPT" || { err "Setting the OS name for Steam failed."; return 1; }
+        sudo "$OS_NAME_SCRIPT" || { err "Setting Steamify's version for Steam failed."; return 1; }
     if [[ -f "$LIMINE_DEFAULTS" ]] && ! grep -q '^TARGET_OS_NAME=' "$LIMINE_DEFAULTS"; then
         backup_file "$LIMINE_DEFAULTS"
         printf '%s\n' 'TARGET_OS_NAME="CachyOS"' | sudo tee -a "$LIMINE_DEFAULTS" > /dev/null
@@ -44,10 +62,11 @@ os_name_enable() {
 
 os_name_disable() {
     sudo rm -f "$OS_NAME_HOOK" "$OS_NAME_SCRIPT"
-    [[ -f /etc/os-release ]] && sudo sed -i -e '/^VARIANT=/d' -e '/^VARIANT_ID=/d' -e '/^VERSION_ID=/d' /etc/os-release
+    [[ -f /etc/os-release ]] && sudo sed -i -e '/^VARIANT=/d' -e '/^VARIANT_ID=/d' -e '/^VERSION_ID=/d' -e '/^VERSION_CODENAME=/d' /etc/os-release
     # CachyOS's own values back, the way its hooks write them.
     if [[ -x /usr/share/libalpm/scripts/cachyos-branding ]]; then
         sudo /usr/share/libalpm/scripts/cachyos-branding os-release
+        # Undoes 2.9.0 pre-releases, which changed lsb-release's name too.
         sudo /usr/share/libalpm/scripts/cachyos-branding lsb-release
     fi
     if [[ -n "$(state_get gaming limine_target)" ]]; then
@@ -86,9 +105,6 @@ gaming_enable() {
     esac
     create_desktop_shortcut
     steam_enable
-    # System Settings' About this System: the name KInfoCenter shows instead
-    # of os-release's (package-owned, so not edited).
-    kset gaming kcm-about-distrorc General Name "CachyOS Linux with Steamify"
     os_name_enable || return 1
 }
 
diff --git a/patches/README.md b/patches/README.md
index 256f41c..a96e31d 100644
--- a/patches/README.md
+++ b/patches/README.md
@@ -13,5 +13,5 @@ read and reviewed on their own. `lib/*.sh` reads them with `patch_file
 | `steamify-fremont-poweroff.dkms.conf`, `steamify-cros-ec-cec.dkms.conf` | `lib/fremont-poweroff.sh`, `lib/cec.sh` | The DKMS modules' `dkms.conf` (`fill NAME=... VERSION=...`) |
 | `steam-shortcuts.py` | `lib/steam-game.sh` (Add as non-Steam game) | Reads and writes Steam's binary `shortcuts.vdf` (find, add or update, remove) |
 | `steamify-notifier.py` | `lib/update-notifier.sh` (Update notifications) | The daily check: notification and tray icon when there's a new release |
-| `steamify-os-release.sh`, `steamify-os-release.hook` | `lib/login-manager.sh` (SteamOS conversion) | Sets the OS name Steam shows ("CachyOS with Steamify": `DISTRIB_DESCRIPTION` in `/etc/lsb-release`, which `lsb_release -d` gives Steam; never `/etc/os-release`, whose `PRETTY_NAME` limine-snapper-sync needs); the pacman hook runs it again after cachyos-hooks resets it (`fill SCRIPT=...`) |
+| `steamify-os-release.sh`, `steamify-os-release.hook` | `lib/login-manager.sh` (SteamOS conversion) | Steamify as the OS variant and version, and the SteamOS release it follows as the codename, for Steam's System settings (`VARIANT`, `VERSION_ID`, `VERSION_CODENAME` in `/etc/os-release`; the OS name stays CachyOS's); the pacman hook runs it again after cachyos-hooks (`fill SCRIPT=... VERSION=... CODENAME=...`) |
 | `cros-ec-cec-single-port.patch` | `lib/cec.sh` (HDMI-CEC) | Makes Valve's Steam Machine CEC driver find amdgpu's HDMI port |
diff --git a/patches/steamify-os-release.hook b/patches/steamify-os-release.hook
index c4ce503..3aba938 100644
--- a/patches/steamify-os-release.hook
+++ b/patches/steamify-os-release.hook
@@ -1,15 +1,14 @@
 # Installed by Steamify CachyOS (SteamOS conversion): runs after
-# cachyos-hooks' lsb-release/cachyos-branding hooks (hooks run in file name
+# cachyos-hooks' os-release/cachyos-branding hooks (hooks run in file name
 # order).
 [Trigger]
 Operation = Install
 Operation = Upgrade
 Type = Package
 Target = filesystem
-Target = lsb-release
 Target = cachyos-hooks
 
 [Action]
-Description = Steamify: the OS name Steam shows (CachyOS with Steamify)
+Description = Steamify: the OS variant and version Steam shows
 When = PostTransaction
 Exec = @SCRIPT@
diff --git a/patches/steamify-os-release.sh b/patches/steamify-os-release.sh
index 07d4def..5a35ad4 100644
--- a/patches/steamify-os-release.sh
+++ b/patches/steamify-os-release.sh
@@ -1,11 +1,11 @@
 #!/bin/sh
 # Installed by Steamify CachyOS (SteamOS conversion): what Steam shows in its
-# System settings. The OS name is `lsb_release -d` (DISTRIB_DESCRIPTION in
-# /etc/lsb-release); the version comes from /etc/os-release's VARIANT and
-# VERSION_ID. CachyOS's hooks reset lsb-release on updates of lsb-release and
-# cachyos-hooks; the zz-steamify-os-release hook runs this after them.
-# os-release's NAME and PRETTY_NAME stay CachyOS's: limine-snapper-sync finds
-# the boot entries by the OS name.
-sed -i 's|^DISTRIB_DESCRIPTION=.*$|DISTRIB_DESCRIPTION="CachyOS with Steamify"|' /etc/lsb-release
-sed -i -e '/^VARIANT=/d' -e '/^VARIANT_ID=/d' -e '/^VERSION_ID=/d' /etc/os-release
-printf '%s\n' 'VARIANT="Steamify"' 'VARIANT_ID=steamify' 'VERSION_ID=@VERSION@' >> /etc/os-release
+# System settings besides the OS name, which stays CachyOS's: Steamify as the
+# variant and version, and the SteamOS release it follows as the codename
+# (/etc/os-release's VARIANT, VERSION_ID, VERSION_CODENAME). NAME and
+# PRETTY_NAME are never touched: limine-snapper-sync finds the boot entries by
+# the OS name. The zz-steamify-os-release hook runs this after cachyos-hooks.
+sed -i -e '/^VARIANT=/d' -e '/^VARIANT_ID=/d' -e '/^VERSION_ID=/d' -e '/^VERSION_CODENAME=/d' /etc/os-release
+printf '%s\n' 'VARIANT="Steamify @VERSION@"' 'VARIANT_ID=steamify' 'VERSION_ID=@VERSION@' >> /etc/os-release
+[ -n "@CODENAME@" ] && echo 'VERSION_CODENAME=@CODENAME@' >> /etc/os-release
+exit 0

From 44bfe071d6601c71cdcc525741cb6c0b46ce0530 Mon Sep 17 00:00:00 2001
From: rickpeters <rickpeters@upriser.nl>
Date: Mon, 28 Sep 2026 19:17:01 +0200
Subject: [PATCH 5/8] fix: No VERSION_ID in os-release: About this System said
 "CachyOS Linux 2.9.0"; the version is in VARIANT ("Steamify 2.9.0")

---
 AGENTS.md                      | 3 ++-
 CHANGELOG.md                   | 3 ++-
 lib/login-manager.sh           | 5 +++--
 patches/README.md              | 2 +-
 patches/steamify-os-release.sh | 7 ++++---
 5 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/AGENTS.md b/AGENTS.md
index 92d31a4..754af59 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -314,7 +314,8 @@ gamescope and the Plasma desktop. Primary target: the Valve Steam Machine
 - What Steam's System settings show (SteamOS conversion, 2.9.0): the OS name
   stays CachyOS's everywhere (legal clarity; Steam reads `lsb_release -d`,
   not touched). `/etc/os-release` gets only `VARIANT="Steamify <version>"`,
-  `VARIANT_ID`, `VERSION_ID` and `VERSION_CODENAME=steamos-X.Y` (Valve's
+  `VARIANT_ID` and `VERSION_CODENAME=steamos-X.Y` (no `VERSION_ID`: KDE's About
+  this System shows it after the name, "CachyOS Linux 2.9.0") (Valve's
   newest jupiter repo), refreshed by `os_version_refresh` after every run that
   changes something; a pacman hook (`zz-steamify-os-release`) runs after
   cachyos-hooks. Never `NAME` or `PRETTY_NAME`: limine-snapper-sync finds the
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 413c9f9..e73449f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,8 @@ one per merged pull request.
 ## 2.9.0 - 2026-09-28
 
 - `d30d505` **chore: Version 2.9.0**
-- **feat: Steam's System settings: the OS name stays CachyOS (no renaming, also not in About this System), Steamify <version> as the variant, the SteamOS release it follows as the codename (steamos-3.9)**
+- **fix: No VERSION_ID in os-release: About this System said "CachyOS Linux 2.9.0"; the version is in VARIANT ("Steamify 2.9.0")**
+- `435f69c` **feat: Steam's System settings: the OS name stays CachyOS (no renaming, also not in About this System), Steamify <version> as the variant, the SteamOS release it follows as the codename (steamos-3.9)**
 - `ce71b34` **feat: Steam's System settings and About this System like on SteamOS: OS name "CachyOS with Steamify" (lsb-release, kept through CachyOS updates by a pacman hook), Steamify as OS variant and version (os-release VARIANT/VERSION_ID; NAME/PRETTY_NAME stay CachyOS's for limine, TARGET_OS_NAME pinned), "CachyOS Linux with Steamify" in About this System; on a Steam Machine the serial number and Steam's Wi-Fi backend setting (existing installs get it as an update)**
 - `07a94cd` **fix(ui): The progress screen's ✓ and ! stand upright: only a dot on the circle spins while a step runs (they kept the spinner's last angle)**
 
diff --git a/lib/login-manager.sh b/lib/login-manager.sh
index 510da38..579c66b 100644
--- a/lib/login-manager.sh
+++ b/lib/login-manager.sh
@@ -21,7 +21,8 @@ gaming_status() {
 # What Steam shows in its System settings besides the OS name (which stays
 # CachyOS's, for legal clarity and because limine-snapper-sync finds the boot
 # entries by it): Steamify as the variant and version, the SteamOS release it
-# follows as the codename (os-release VARIANT/VERSION_ID/VERSION_CODENAME).
+# follows as the codename (os-release VARIANT/VERSION_CODENAME; no
+# VERSION_ID, which About this System would show after CachyOS's name).
 OS_NAME_SCRIPT=/usr/local/libexec/steamify-os-release
 OS_NAME_HOOK=/etc/pacman.d/hooks/zz-steamify-os-release.hook
 # limine's tools take the OS name from TARGET_OS_NAME, else os-release's
@@ -81,7 +82,7 @@ os_version_refresh() {
     # OS version follows Steamify's, not just the one that set it up. Silent:
     # the app reads the backend's stdout as JSON.
     gaming_status 2>/dev/null || return 0
-    grep -qx "VERSION_ID=$VERSION" /etc/os-release 2>/dev/null && return 0
+    grep -qx "VARIANT=\"Steamify $VERSION\"" /etc/os-release 2>/dev/null && return 0
     os_name_enable > /dev/null 2>&1
     return 0
 }
diff --git a/patches/README.md b/patches/README.md
index a96e31d..e5d4c80 100644
--- a/patches/README.md
+++ b/patches/README.md
@@ -13,5 +13,5 @@ read and reviewed on their own. `lib/*.sh` reads them with `patch_file
 | `steamify-fremont-poweroff.dkms.conf`, `steamify-cros-ec-cec.dkms.conf` | `lib/fremont-poweroff.sh`, `lib/cec.sh` | The DKMS modules' `dkms.conf` (`fill NAME=... VERSION=...`) |
 | `steam-shortcuts.py` | `lib/steam-game.sh` (Add as non-Steam game) | Reads and writes Steam's binary `shortcuts.vdf` (find, add or update, remove) |
 | `steamify-notifier.py` | `lib/update-notifier.sh` (Update notifications) | The daily check: notification and tray icon when there's a new release |
-| `steamify-os-release.sh`, `steamify-os-release.hook` | `lib/login-manager.sh` (SteamOS conversion) | Steamify as the OS variant and version, and the SteamOS release it follows as the codename, for Steam's System settings (`VARIANT`, `VERSION_ID`, `VERSION_CODENAME` in `/etc/os-release`; the OS name stays CachyOS's); the pacman hook runs it again after cachyos-hooks (`fill SCRIPT=... VERSION=... CODENAME=...`) |
+| `steamify-os-release.sh`, `steamify-os-release.hook` | `lib/login-manager.sh` (SteamOS conversion) | Steamify as the OS variant and version, and the SteamOS release it follows as the codename, for Steam's System settings (`VARIANT`, `VERSION_CODENAME` in `/etc/os-release`, no `VERSION_ID`; the OS name stays CachyOS's); the pacman hook runs it again after cachyos-hooks (`fill SCRIPT=... VERSION=... CODENAME=...`) |
 | `cros-ec-cec-single-port.patch` | `lib/cec.sh` (HDMI-CEC) | Makes Valve's Steam Machine CEC driver find amdgpu's HDMI port |
diff --git a/patches/steamify-os-release.sh b/patches/steamify-os-release.sh
index 5a35ad4..db9e280 100644
--- a/patches/steamify-os-release.sh
+++ b/patches/steamify-os-release.sh
@@ -1,11 +1,12 @@
 #!/bin/sh
 # Installed by Steamify CachyOS (SteamOS conversion): what Steam shows in its
 # System settings besides the OS name, which stays CachyOS's: Steamify as the
-# variant and version, and the SteamOS release it follows as the codename
-# (/etc/os-release's VARIANT, VERSION_ID, VERSION_CODENAME). NAME and
+# variant with its version, and the SteamOS release it follows as the
+# codename (/etc/os-release's VARIANT, VERSION_CODENAME). No VERSION_ID: KDE's
+# About this System would show it after CachyOS's name ("CachyOS Linux 2.9.0"). NAME and
 # PRETTY_NAME are never touched: limine-snapper-sync finds the boot entries by
 # the OS name. The zz-steamify-os-release hook runs this after cachyos-hooks.
 sed -i -e '/^VARIANT=/d' -e '/^VARIANT_ID=/d' -e '/^VERSION_ID=/d' -e '/^VERSION_CODENAME=/d' /etc/os-release
-printf '%s\n' 'VARIANT="Steamify @VERSION@"' 'VARIANT_ID=steamify' 'VERSION_ID=@VERSION@' >> /etc/os-release
+printf '%s\n' 'VARIANT="Steamify @VERSION@"' 'VARIANT_ID=steamify' >> /etc/os-release
 [ -n "@CODENAME@" ] && echo 'VERSION_CODENAME=@CODENAME@' >> /etc/os-release
 exit 0

From 27a40702ce2f461a17bacbf23c6afdfd45ee985e Mon Sep 17 00:00:00 2001
From: rickpeters <rickpeters@upriser.nl>
Date: Mon, 28 Sep 2026 19:22:25 +0200
Subject: [PATCH 6/8] fix: Steam's OS Variant shows Steamify's version
 (VARIANT_ID=steamify-2.9.0; Steam shows VARIANT_ID, not VARIANT)

---
 AGENTS.md                      | 2 +-
 CHANGELOG.md                   | 3 ++-
 patches/steamify-os-release.sh | 3 ++-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/AGENTS.md b/AGENTS.md
index 754af59..ce3dd14 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -314,7 +314,7 @@ gamescope and the Plasma desktop. Primary target: the Valve Steam Machine
 - What Steam's System settings show (SteamOS conversion, 2.9.0): the OS name
   stays CachyOS's everywhere (legal clarity; Steam reads `lsb_release -d`,
   not touched). `/etc/os-release` gets only `VARIANT="Steamify <version>"`,
-  `VARIANT_ID` and `VERSION_CODENAME=steamos-X.Y` (no `VERSION_ID`: KDE's About
+  `VARIANT_ID=steamify-<version>` (what Steam shows as OS Variant) and `VERSION_CODENAME=steamos-X.Y` (no `VERSION_ID`: KDE's About
   this System shows it after the name, "CachyOS Linux 2.9.0") (Valve's
   newest jupiter repo), refreshed by `os_version_refresh` after every run that
   changes something; a pacman hook (`zz-steamify-os-release`) runs after
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e73449f..b59fdb5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,8 @@ one per merged pull request.
 ## 2.9.0 - 2026-09-28
 
 - `d30d505` **chore: Version 2.9.0**
-- **fix: No VERSION_ID in os-release: About this System said "CachyOS Linux 2.9.0"; the version is in VARIANT ("Steamify 2.9.0")**
+- **fix: Steam's OS Variant shows Steamify's version (VARIANT_ID=steamify-2.9.0; Steam shows VARIANT_ID, not VARIANT)**
+- `44bfe07` **fix: No VERSION_ID in os-release: About this System said "CachyOS Linux 2.9.0"; the version is in VARIANT ("Steamify 2.9.0")**
 - `435f69c` **feat: Steam's System settings: the OS name stays CachyOS (no renaming, also not in About this System), Steamify <version> as the variant, the SteamOS release it follows as the codename (steamos-3.9)**
 - `ce71b34` **feat: Steam's System settings and About this System like on SteamOS: OS name "CachyOS with Steamify" (lsb-release, kept through CachyOS updates by a pacman hook), Steamify as OS variant and version (os-release VARIANT/VERSION_ID; NAME/PRETTY_NAME stay CachyOS's for limine, TARGET_OS_NAME pinned), "CachyOS Linux with Steamify" in About this System; on a Steam Machine the serial number and Steam's Wi-Fi backend setting (existing installs get it as an update)**
 - `07a94cd` **fix(ui): The progress screen's ✓ and ! stand upright: only a dot on the circle spins while a step runs (they kept the spinner's last angle)**
diff --git a/patches/steamify-os-release.sh b/patches/steamify-os-release.sh
index db9e280..12cadf6 100644
--- a/patches/steamify-os-release.sh
+++ b/patches/steamify-os-release.sh
@@ -7,6 +7,7 @@
 # PRETTY_NAME are never touched: limine-snapper-sync finds the boot entries by
 # the OS name. The zz-steamify-os-release hook runs this after cachyos-hooks.
 sed -i -e '/^VARIANT=/d' -e '/^VARIANT_ID=/d' -e '/^VERSION_ID=/d' -e '/^VERSION_CODENAME=/d' /etc/os-release
-printf '%s\n' 'VARIANT="Steamify @VERSION@"' 'VARIANT_ID=steamify' >> /etc/os-release
+# Steam shows VARIANT_ID as the OS Variant: the version goes in there too.
+printf '%s\n' 'VARIANT="Steamify @VERSION@"' 'VARIANT_ID=steamify-@VERSION@' >> /etc/os-release
 [ -n "@CODENAME@" ] && echo 'VERSION_CODENAME=@CODENAME@' >> /etc/os-release
 exit 0

From a72d848e78466a9f9ee145fbf6a528e52f80b176 Mon Sep 17 00:00:00 2001
From: rickpeters <rickpeters@upriser.nl>
Date: Mon, 28 Sep 2026 19:28:10 +0200
Subject: [PATCH 7/8] feat: Steam's OS Version is the SteamOS release Steamify
 follows (steamos-3.9), its OS Codename steam-machine; About this System keeps
 "CachyOS Linux" (UseOSReleaseVersion)

---
 AGENTS.md                      | 22 +++++++++++++---------
 CHANGELOG.md                   |  3 ++-
 lib/login-manager.sh           | 23 +++++++++++++----------
 patches/README.md              |  2 +-
 patches/steamify-os-release.sh | 15 ++++++++-------
 5 files changed, 37 insertions(+), 28 deletions(-)

diff --git a/AGENTS.md b/AGENTS.md
index ce3dd14..b0bae5e 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -312,16 +312,20 @@ gamescope and the Plasma desktop. Primary target: the Valve Steam Machine
   switches `boot` on an installed conversion: `WANTED` is `CURRENT` plus
   that, so no updates or removals a normal run would pick.
 - What Steam's System settings show (SteamOS conversion, 2.9.0): the OS name
-  stays CachyOS's everywhere (legal clarity; Steam reads `lsb_release -d`,
-  not touched). `/etc/os-release` gets only `VARIANT="Steamify <version>"`,
-  `VARIANT_ID=steamify-<version>` (what Steam shows as OS Variant) and `VERSION_CODENAME=steamos-X.Y` (no `VERSION_ID`: KDE's About
-  this System shows it after the name, "CachyOS Linux 2.9.0") (Valve's
-  newest jupiter repo), refreshed by `os_version_refresh` after every run that
-  changes something; a pacman hook (`zz-steamify-os-release`) runs after
-  cachyos-hooks. Never `NAME` or `PRETTY_NAME`: limine-snapper-sync finds the
-  boot entries by the OS name ("Target OS name ... not found in
+  stays CachyOS's everywhere (legal clarity; Steam's OS Name is
+  `lsb_release -d`, not touched). `/etc/os-release` gets `VERSION_ID=steamos-X.Y`
+  (Steam's OS Version: Valve's newest jupiter repo; offline, the previous
+  value), `VERSION_CODENAME=steam-machine`, `VARIANT="Steamify <version>"` and
+  `VARIANT_ID=steamify-<version>` (Steam shows VARIANT_ID as OS Variant),
+  refreshed by `os_version_refresh` after every run that changes something; a
+  pacman hook (`zz-steamify-os-release`) runs after cachyos-hooks. KDE's About
+  this System would show VERSION_ID after the name: `kcm-about-distrorc`
+  `UseOSReleaseVersion=true` (kset) makes it show os-release's VERSION, which
+  CachyOS doesn't have. Never `NAME` or `PRETTY_NAME`: limine-snapper-sync
+  finds the boot entries by the OS name ("Target OS name ... not found in
   /boot/limine.conf"); `/etc/default/limine` gets `TARGET_OS_NAME="CachyOS"`
-  when it has none, as a guard.
+  when it has none, as a guard. The serial number (tmpfiles rule) is Steam
+  Machine support's, so Fremont only.
 - `Relogin=true` means a gamescope that fails to start is relaunched in a
   tight loop; keep that in mind when changing session handling.
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b59fdb5..75b39a8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,8 @@ one per merged pull request.
 ## 2.9.0 - 2026-09-28
 
 - `d30d505` **chore: Version 2.9.0**
-- **fix: Steam's OS Variant shows Steamify's version (VARIANT_ID=steamify-2.9.0; Steam shows VARIANT_ID, not VARIANT)**
+- **feat: Steam's OS Version is the SteamOS release Steamify follows (steamos-3.9), its OS Codename steam-machine; About this System keeps "CachyOS Linux" (UseOSReleaseVersion)**
+- `27a4070` **fix: Steam's OS Variant shows Steamify's version (VARIANT_ID=steamify-2.9.0; Steam shows VARIANT_ID, not VARIANT)**
 - `44bfe07` **fix: No VERSION_ID in os-release: About this System said "CachyOS Linux 2.9.0"; the version is in VARIANT ("Steamify 2.9.0")**
 - `435f69c` **feat: Steam's System settings: the OS name stays CachyOS (no renaming, also not in About this System), Steamify <version> as the variant, the SteamOS release it follows as the codename (steamos-3.9)**
 - `ce71b34` **feat: Steam's System settings and About this System like on SteamOS: OS name "CachyOS with Steamify" (lsb-release, kept through CachyOS updates by a pacman hook), Steamify as OS variant and version (os-release VARIANT/VERSION_ID; NAME/PRETTY_NAME stay CachyOS's for limine, TARGET_OS_NAME pinned), "CachyOS Linux with Steamify" in About this System; on a Steam Machine the serial number and Steam's Wi-Fi backend setting (existing installs get it as an update)**
diff --git a/lib/login-manager.sh b/lib/login-manager.sh
index 579c66b..bd35013 100644
--- a/lib/login-manager.sh
+++ b/lib/login-manager.sh
@@ -20,24 +20,24 @@ gaming_status() {
 
 # What Steam shows in its System settings besides the OS name (which stays
 # CachyOS's, for legal clarity and because limine-snapper-sync finds the boot
-# entries by it): Steamify as the variant and version, the SteamOS release it
-# follows as the codename (os-release VARIANT/VERSION_CODENAME; no
-# VERSION_ID, which About this System would show after CachyOS's name).
+# entries by it): the SteamOS release as the OS version, steam-machine as the
+# codename, Steamify with its version as the variant (os-release VERSION_ID,
+# VERSION_CODENAME, VARIANT_ID; see patches/steamify-os-release.sh).
 OS_NAME_SCRIPT=/usr/local/libexec/steamify-os-release
 OS_NAME_HOOK=/etc/pacman.d/hooks/zz-steamify-os-release.hook
 # limine's tools take the OS name from TARGET_OS_NAME, else os-release's
 # PRETTY_NAME: pinned to CachyOS, the boot entries never depend on os-release.
 LIMINE_DEFAULTS=/etc/default/limine
 
-steamos_codename() {
+steamos_release() {
     # The SteamOS release Steamify follows: Valve's newest jupiter-X.Y repo
-    # (where the SteamOS extras come from), as a codename (os-release allows
-    # no spaces or capitals: steamos-3.9). Offline (e.g. in the installer):
-    # the one set before, if any.
+    # (where the SteamOS extras come from), as an os-release ID (no spaces or
+    # capitals: steamos-3.9). Offline (e.g. in the installer): the one set
+    # before, if any.
     local v
     v="$(curl -fsL --max-time 15 "$VALVE_MIRROR/" 2>/dev/null | grep -oE 'jupiter-[0-9]+\.[0-9]+/' | tr -d / | sort -V | tail -n 1)"
     if [[ -n "$v" ]]; then echo "steamos-${v#jupiter-}"
-    else sed -n 's/^VERSION_CODENAME=//p' /etc/os-release 2>/dev/null; fi
+    else sed -n 's/^VERSION_ID=\(steamos-.*\)$/\1/p' /etc/os-release 2>/dev/null; fi
 }
 
 os_name_enable() {
@@ -48,7 +48,10 @@ os_name_enable() {
     fi
     [[ -n "$(kreadconfig6 --file kcm-about-distrorc --group General --key Name 2>/dev/null)" ]] &&
         kset gaming kcm-about-distrorc General Name --delete
-    patch_file steamify-os-release.sh | fill VERSION="$VERSION" CODENAME="$(steamos_codename)" |
+    # About this System: os-release's VERSION (CachyOS has none) instead of
+    # VERSION_ID, which is the SteamOS release now.
+    kset gaming kcm-about-distrorc General UseOSReleaseVersion true
+    patch_file steamify-os-release.sh | fill VERSION="$VERSION" STEAMOS="$(steamos_release)" |
         sudo install -Dm755 /dev/stdin "$OS_NAME_SCRIPT" &&
         patch_file steamify-os-release.hook | fill SCRIPT="$OS_NAME_SCRIPT" |
             sudo install -Dm644 /dev/stdin "$OS_NAME_HOOK" &&
@@ -82,7 +85,7 @@ os_version_refresh() {
     # OS version follows Steamify's, not just the one that set it up. Silent:
     # the app reads the backend's stdout as JSON.
     gaming_status 2>/dev/null || return 0
-    grep -qx "VARIANT=\"Steamify $VERSION\"" /etc/os-release 2>/dev/null && return 0
+    grep -qx "VARIANT_ID=steamify-$VERSION" /etc/os-release 2>/dev/null && return 0
     os_name_enable > /dev/null 2>&1
     return 0
 }
diff --git a/patches/README.md b/patches/README.md
index e5d4c80..5b67b00 100644
--- a/patches/README.md
+++ b/patches/README.md
@@ -13,5 +13,5 @@ read and reviewed on their own. `lib/*.sh` reads them with `patch_file
 | `steamify-fremont-poweroff.dkms.conf`, `steamify-cros-ec-cec.dkms.conf` | `lib/fremont-poweroff.sh`, `lib/cec.sh` | The DKMS modules' `dkms.conf` (`fill NAME=... VERSION=...`) |
 | `steam-shortcuts.py` | `lib/steam-game.sh` (Add as non-Steam game) | Reads and writes Steam's binary `shortcuts.vdf` (find, add or update, remove) |
 | `steamify-notifier.py` | `lib/update-notifier.sh` (Update notifications) | The daily check: notification and tray icon when there's a new release |
-| `steamify-os-release.sh`, `steamify-os-release.hook` | `lib/login-manager.sh` (SteamOS conversion) | Steamify as the OS variant and version, and the SteamOS release it follows as the codename, for Steam's System settings (`VARIANT`, `VERSION_CODENAME` in `/etc/os-release`, no `VERSION_ID`; the OS name stays CachyOS's); the pacman hook runs it again after cachyos-hooks (`fill SCRIPT=... VERSION=... CODENAME=...`) |
+| `steamify-os-release.sh`, `steamify-os-release.hook` | `lib/login-manager.sh` (SteamOS conversion) | What Steam's System settings show besides the OS name (which stays CachyOS's): `VERSION_ID=steamos-X.Y`, `VERSION_CODENAME=steam-machine`, `VARIANT`/`VARIANT_ID` Steamify with its version, in `/etc/os-release`; the pacman hook runs it again after cachyos-hooks (`fill SCRIPT=... VERSION=... STEAMOS=...`) |
 | `cros-ec-cec-single-port.patch` | `lib/cec.sh` (HDMI-CEC) | Makes Valve's Steam Machine CEC driver find amdgpu's HDMI port |
diff --git a/patches/steamify-os-release.sh b/patches/steamify-os-release.sh
index 12cadf6..33c3f3c 100644
--- a/patches/steamify-os-release.sh
+++ b/patches/steamify-os-release.sh
@@ -1,13 +1,14 @@
 #!/bin/sh
 # Installed by Steamify CachyOS (SteamOS conversion): what Steam shows in its
-# System settings besides the OS name, which stays CachyOS's: Steamify as the
-# variant with its version, and the SteamOS release it follows as the
-# codename (/etc/os-release's VARIANT, VERSION_CODENAME). No VERSION_ID: KDE's
-# About this System would show it after CachyOS's name ("CachyOS Linux 2.9.0"). NAME and
+# System settings besides the OS name, which stays CachyOS's: the SteamOS
+# release Steamify follows as the OS version (VERSION_ID, e.g. steamos-3.9),
+# steam-machine as the codename, and Steamify with its version as the variant
+# (VARIANT_ID, which Steam shows). KDE's About this System would show
+# VERSION_ID after the name: the conversion sets its UseOSReleaseVersion, so it
+# shows os-release's VERSION instead, which CachyOS doesn't have. NAME and
 # PRETTY_NAME are never touched: limine-snapper-sync finds the boot entries by
 # the OS name. The zz-steamify-os-release hook runs this after cachyos-hooks.
 sed -i -e '/^VARIANT=/d' -e '/^VARIANT_ID=/d' -e '/^VERSION_ID=/d' -e '/^VERSION_CODENAME=/d' /etc/os-release
-# Steam shows VARIANT_ID as the OS Variant: the version goes in there too.
-printf '%s\n' 'VARIANT="Steamify @VERSION@"' 'VARIANT_ID=steamify-@VERSION@' >> /etc/os-release
-[ -n "@CODENAME@" ] && echo 'VERSION_CODENAME=@CODENAME@' >> /etc/os-release
+printf '%s\n' 'VARIANT="Steamify @VERSION@"' 'VARIANT_ID=steamify-@VERSION@' 'VERSION_CODENAME=steam-machine' >> /etc/os-release
+[ -n "@STEAMOS@" ] && echo 'VERSION_ID=@STEAMOS@' >> /etc/os-release
 exit 0

From 3b4f3b231393189380664bd641a6ab736d47694c Mon Sep 17 00:00:00 2001
From: rickpeters <rickpeters@upriser.nl>
Date: Mon, 28 Sep 2026 19:31:28 +0200
Subject: [PATCH 8/8] docs: changelog hash for a72d848

---
 CHANGELOG.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 75b39a8..ee1c854 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@ one per merged pull request.
 ## 2.9.0 - 2026-09-28
 
 - `d30d505` **chore: Version 2.9.0**
-- **feat: Steam's OS Version is the SteamOS release Steamify follows (steamos-3.9), its OS Codename steam-machine; About this System keeps "CachyOS Linux" (UseOSReleaseVersion)**
+- `a72d848` **feat: Steam's OS Version is the SteamOS release Steamify follows (steamos-3.9), its OS Codename steam-machine; About this System keeps "CachyOS Linux" (UseOSReleaseVersion)**
 - `27a4070` **fix: Steam's OS Variant shows Steamify's version (VARIANT_ID=steamify-2.9.0; Steam shows VARIANT_ID, not VARIANT)**
 - `44bfe07` **fix: No VERSION_ID in os-release: About this System said "CachyOS Linux 2.9.0"; the version is in VARIANT ("Steamify 2.9.0")**
 - `435f69c` **feat: Steam's System settings: the OS name stays CachyOS (no renaming, also not in About this System), Steamify <version> as the variant, the SteamOS release it follows as the codename (steamos-3.9)**