diff --git a/README.md b/README.md
index 15e46a1..4802945 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,8 @@ gentoo-legion/
 ├── system/                  # System configuration
 │   ├── ccache.conf          # Compiler cache config
 │   ├── dracut.conf.d/       # Initramfs configuration
-│   └── conf.d/              # OpenRC service configs
+│   ├── conf.d/              # OpenRC service configs
+│   └── udev/                # udev rules (power profile switching)
 ├── greetd/                  # Display manager configuration
 │   ├── config.toml          # greetd main config
 │   ├── regreet.toml         # GTK greeter theming
@@ -91,6 +92,7 @@ These files can be copied directly to your system:
 | `system/ccache.conf` | `/etc/ccache.conf` |
 | `system/dracut.conf.d/*` | `/etc/dracut.conf.d/` |
 | `system/conf.d/{iptables,ip6tables,snapper}` | `/etc/conf.d/` |
+| `system/udev/*` | `/etc/udev/rules.d/` |
 | `greetd/*` | `/etc/greetd/` (and `/etc/pam.d/greetd`) |
 | `firewall/ip6tables.rules` | `/etc/iptables/` |
 | `shell/starship.toml` | `~/.config/starship.toml` |
diff --git a/docs/troubleshooting.md b/docs/troubleshooting.md
index 8bcdbc1..9e6bd9b 100644
--- a/docs/troubleshooting.md
+++ b/docs/troubleshooting.md
@@ -237,6 +237,32 @@ llvm-core/clang clang
 
 This is already included in the provided `package.use/steam` file.
 
+### Hyprland GCC 15 ICE
+
+GCC 15 crashes with an internal compiler error when compiling Hyprland with `-march=znver3` and C++26 modules:
+
+```
+internal compiler error: Segmentation fault
+```
+
+This occurs on `SinglePixel.cpp` due to a bug in GCC's handling of C++26 module imports with aggressive optimizations.
+
+**Fix:** Compile Hyprland with clang instead of GCC:
+
+```bash
+# Create clang environment
+echo 'CC="clang"' > /etc/portage/env/clang.conf
+echo 'CXX="clang++"' >> /etc/portage/env/clang.conf
+
+# Apply to Hyprland
+echo "gui-wm/hyprland clang.conf" >> /etc/portage/package.env/clang
+
+# Rebuild
+emerge -1 gui-wm/hyprland
+```
+
+This is already included in the provided `env/clang.conf` and `package.env/clang` files.
+
 ### Circular Dependency (freetype/harfbuzz)
 
 During initial install, use `-harfbuzz` flag temporarily:
@@ -268,6 +294,37 @@ emerge -pv <package>
 
 Add missing flags to `/etc/portage/package.use/`.
 
+## Hyprland Session Logging
+
+By default, Hyprland outputs startup logs to the terminal. To redirect to a file:
+
+1. Create a wrapper script `/usr/local/bin/start-hyprland-dbus`:
+   ```bash
+   #!/bin/bash
+   exec dbus-run-session /usr/bin/start-hyprland > ~/.local/log/hyprland.log 2>&1
+   ```
+
+2. Ensure log directory exists:
+   ```bash
+   mkdir -p ~/.local/log
+   ```
+
+3. Automate the session entry update via `/etc/portage/bashrc`:
+   ```bash
+   # Portage hooks
+
+   post_pkg_postinst() {
+       case "${CATEGORY}/${PN}" in
+           gui-wm/hyprland)
+               sed -i 's|Exec=.*|Exec=/usr/local/bin/start-hyprland-dbus|' /usr/share/wayland-sessions/hyprland.desktop
+               einfo "Updated hyprland.desktop to use start-hyprland-dbus"
+               ;;
+       esac
+   }
+   ```
+
+This hook automatically patches `/usr/share/wayland-sessions/hyprland.desktop` after each Hyprland update.
+
 ## Getting Help
 
 1. Check Gentoo Wiki: https://wiki.gentoo.org/
diff --git a/portage/bashrc b/portage/bashrc
new file mode 100644
index 0000000..268495c
--- /dev/null
+++ b/portage/bashrc
@@ -0,0 +1,10 @@
+# Portage hooks
+
+post_pkg_postinst() {
+    case "${CATEGORY}/${PN}" in
+        gui-wm/hyprland)
+            sed -i 's|Exec=.*|Exec=/usr/local/bin/start-hyprland-dbus|' /usr/share/wayland-sessions/hyprland.desktop
+            einfo "Updated hyprland.desktop to use start-hyprland-dbus"
+            ;;
+    esac
+}
diff --git a/portage/env/clang.conf b/portage/env/clang.conf
new file mode 100644
index 0000000..485cd28
--- /dev/null
+++ b/portage/env/clang.conf
@@ -0,0 +1,5 @@
+# Use clang/clang++ instead of GCC
+# Workaround for GCC 15 ICE (internal compiler error) with -march=znver3
+# and C++26 modules on certain packages
+CC="clang"
+CXX="clang++"
diff --git a/portage/package.env/clang b/portage/package.env/clang
new file mode 100644
index 0000000..198e6a7
--- /dev/null
+++ b/portage/package.env/clang
@@ -0,0 +1,2 @@
+# Packages that need clang due to GCC 15 ICE with -march=znver3 + C++26 modules
+gui-wm/hyprland clang.conf
diff --git a/system/udev/99-power-profile.rules b/system/udev/99-power-profile.rules
new file mode 100644
index 0000000..14225f4
--- /dev/null
+++ b/system/udev/99-power-profile.rules
@@ -0,0 +1,3 @@
+# Automatic power profile switching based on AC state
+ACTION=="change", SUBSYSTEM=="power_supply", ATTR{type}=="Mains", ATTR{online}=="1", RUN+="/usr/bin/powerprofilesctl set performance"
+ACTION=="change", SUBSYSTEM=="power_supply", ATTR{type}=="Mains", ATTR{online}=="0", RUN+="/usr/bin/powerprofilesctl set power-saver"