general arch updates plus steam streaming notes

arch/gaming.md

@@ -3,7 +3,9 @@
 - [Gaming](#gaming)
   - [Discord](#discord)
   - [Steam](#steam)
-    - [Streaming not working](#streaming-not-working)
+    - [autostart](#autostart)
+    - [mangohud](#mangohud)
+    - [Streaming](#streaming)
     - [FSR](#fsr)
   - [ProtonUp-QT](#protonup-qt)
   - [VSCode](#vscode)
@@ -15,7 +17,7 @@
   - [Bitwarden](#bitwarden)
   - [OBS](#obs)
   - [Xbox Controller](#xbox-controller)
-  - [Mangohud](#mangohud)
+  - [Mangohud](#mangohud-1)
   - [ffmpeg](#ffmpeg)
     - [Intel 11th gen](#intel-11th-gen)
     - [AMD 7900xtx](#amd-7900xtx)
@@ -54,15 +56,87 @@ pacman -S steam
 
 When prompted use vulkan-radeon on AMD and vulkan-intel on intel.
 
-### Streaming not working
+### autostart
 
-<https://wiki.archlinux.org/title/Steam/Troubleshooting#Steam_Remote_Play_issues>
+```bash
+ln -s ~/.local/share/applications/steam-native.desktop ~/.config/autostart/
+```
 
-I have no idea what actually fixes steam streaming. While installing the recommended
+### mangohud
-packages and rebooting does nothing to fix the crashing, starting and enabling `ufw` does? Is it `ufw` in combination with the required packages? I have no idea. Try the following:
 
-1. `pacman -S lib32-libcanberra lib32-libva-intel-driver libva-intel-driver`
+Start steam with mangohud
-2. `systemctl enable --now ufw`
+
+```bash
+pacman -S mangohud lib32-mangohud
+cp /usr/share/applications/steam-native.desktop ~/.local/share/applications/steam.desktop
+```
+
+Edit ~/.local/share/applications/steam.desktop:
+
+```conf
+Exec=/usr/bin/mangohud /usr/bin/steam-native %U
+```
+
+### Streaming
+
+Works great from Arch hosts to Arch guests with a little configuration.
+
+1. wifi
+
+    Your wifi should be isolated to the fastest band you have available at the widest channel width on
+    the least populated channel. BSS Transition and Fast Roaming are the only settings I enable since
+    they do make a difference for video calls and streaming while moving from room to room but don't
+    cause interference or connectivity issues like the other settings.
+
+    ![unifi wifi config](media/unifi_wifi_config.png)
+
+2. host
+
+    Your host settings don't matter too much since you'll be limited to Steam's compatibility with
+    Arch's mesa drivers, the current kernel version, and whether Mercury is retrograde. Steam does a
+    pretty good job automatically selecting the correct libraries and capture mechanism. Here are
+    the settings I use:
+
+    ![steam host settings](media/steam_host_settings.png)
+
+3. Client
+
+    Here's where things start to matter. As of kernel `6.7.6-arch1-2`, `mesa 1:24.0.2-1`,
+    `libva 2.20.0-1`, `mesa-vdpau 1:24.0.2-1`, and `libvdpau 1.5-2` hardware decoding works on Arch
+    with AMD integrated graphics on both my framework (Ryzen 7 7840U w/ Radeon 780M Graphics) and my
+    Steam Deck.
+
+    In the steam advanced client settings select "Enhanced 4k" to start. Do not change
+    the Resolution limit. Decoding at the native resolution of your screen will always perform
+    better than using a non-native resolution. In my testing even lower resolutions result in
+    20-30ms of additional delay over native. Framerate limit should stay at automatic. This will try
+    to match the streaming framerate to your display's refresh rate. You can set this to 60 if
+    things are lagging too much. Bandwidth limit can be adjusted up and down to fit your wifi's
+    limitations if you are experience frame drops and stuttering. If you experience issues like
+    crashing on launch, blank screen or strange artifacts disable hardware decoding. HEVC and low
+    latency networking have never caused me issues. Here are my settings:
+
+    ![steam client settings](media/steam_client_settings.png)
+
+    And to show what a properly configured client can do, here's Crab Champions streamed to my
+    laptop at 2k, 99fps. Note the streaming latency is ~10ms and the dark blue (encode time), light
+    blue (network transmit time), and red (decode time) lines are extremely close together.
+
+    ![enhanced 4k framework](media/enhanced_4k_framework.png)
+
+    My Steam Deck performs about the same but with a lower (~7ms) streaming latency. This is
+    expected because the steam deck streams at 1280x720 which means faster encode and transmit.
+
+    If the red line is far above the blue lines it means your decoding (software or hardware) is
+    struggling to keep up. Either it's not decoding at native resolution (likely transforming the
+    decoded frame to match the display resolution) or your cpu/gpu is doing something else.
+
+    If the light blue line is far above the dark blue line your wifi is slow. Increase channel
+    width, increase transmit power, ensure devices are connected to 5 or 6Ghz, and ensure your
+    device has the latest drivers.
+
+    If the dark blue line is far above the x axis of the graph your host is struggling to encode
+    fast enough. Likely the host's cpu/gpu is doing something else or it's an old computer
 
 ### FSR
 

arch/kubernetes.md

@@ -1,5 +1,12 @@
 # Kubernetes
 
+- [Kubernetes](#kubernetes)
+  - [Setup](#setup)
+  - [MetalLB](#metallb)
+  - [Ingress Nginx](#ingress-nginx)
+  - [Cert Manager](#cert-manager)
+  - [Storage](#storage)
+
 <https://wiki.archlinux.org/title/Kubernetes>
 
 ## Setup

arch/workstation.md

@@ -48,7 +48,7 @@ Install the wireless-regdb to set the regulatory domain to US
 pacman -S wireless-regdb
 ```
 
-Edit /etc/conf.d/wireless-regdom to set the domain
+Edit `/etc/conf.d/wireless-regdom` to set the domain
 
 Switch to iwd for the NetworkManager backend.
 
@@ -56,16 +56,14 @@ Switch to iwd for the NetworkManager backend.
 pacman -S iwd
 ```
 
-Edit /etc/NetworkManager/conf.d/wifi_backend.conf
+Edit `/etc/NetworkManager/conf.d/wifi_backend.conf`
 
 ```conf
 [device]
 wifi.backend=iwd
 ```
 
-```bash
+Finally, reboot the machine for the changes to take effect.
-systemctl restart NetworkManager
-```
 
 ### Microcode
 

fedora_server.md

@@ -6,6 +6,7 @@
   - [Tweaks](#tweaks)
   - [systemd-cryptenroll](#systemd-cryptenroll)
   - [Certbot for Cockpit](#certbot-for-cockpit)
+  - [Backups](#backups)
 
 ## First boot
 
@@ -236,3 +237,10 @@ systemctl enable --now certbot-renew.timer
 ```
 
 Cockpit now has a valid TLS certificate that auto-renews!
+
+## Backups
+
+```bash
+# Create an LVM snapshot
+lvcreate -L 1GB -s -n test /dev/fedora_orange/root
+```

ubuntu_server.md

@@ -1,5 +1,12 @@
 # Ubuntu Server
 
+## Unattended Upgrades
+
+```bash
+apt install unattended-upgrades
+systemctl enable unattended-upgrades
+```
+
 ## Certbot for Cockpit
 
 During this process you'll pick one node to act as your manager for your other nodes.