Add duckstation to the steam deck.

nix/configuration/configuration.nix

@@ -8,64 +8,64 @@
 
 {
   imports = [
-    ./roles/reset
-    ./roles/global_options
-    ./util/unfree_polyfill
-    ./roles/iso
-    ./roles/boot
-    ./roles/zfs
-    ./roles/network
-    ./roles/firewall
-    ./roles/zsh
-    ./roles/zrepl
-    ./roles/graphics
-    ./roles/sound
-    ./roles/sway
-    ./roles/kanshi
+    ./roles/2ship2harkinian
     ./roles/alacritty
-    ./roles/firefox
-    ./roles/chromium
-    ./roles/emacs
-    ./roles/git
-    ./roles/fonts
-    ./roles/gpg
-    ./roles/waybar
-    ./roles/qemu
-    ./roles/wireguard
+    ./roles/ansible
     ./roles/ares
-    ./roles/ssh
-    ./roles/python
+    ./roles/bluetooth
+    ./roles/boot
+    ./roles/chromecast
+    ./roles/chromium
     ./roles/docker
+    ./roles/emacs
+    ./roles/firefox
+    ./roles/firewall
+    ./roles/flux
+    ./roles/fonts
+    ./roles/gcloud
+    ./roles/git
+    ./roles/global_options
+    ./roles/gnuplot
+    ./roles/gpg
+    ./roles/graphics
+    ./roles/hydra
+    ./roles/iso
+    ./roles/kanshi
+    ./roles/kodi
     ./roles/kubernetes
-    ./roles/rust
-    ./roles/media
-    ./roles/steam
     ./roles/latex
     ./roles/launch_keyboard
     ./roles/lvfs
+    ./roles/media
+    ./roles/memtest86
+    ./roles/network
+    ./roles/nix_index
     ./roles/nvme
+    ./roles/pcsx2
+    ./roles/python
+    ./roles/qemu
+    ./roles/reset
+    ./roles/rust
+    ./roles/shikane
+    ./roles/shipwright
+    ./roles/sm64ex
+    ./roles/sops
+    ./roles/sound
+    ./roles/ssh
+    ./roles/steam
+    ./roles/steam_run_free
+    ./roles/sway
+    ./roles/tekton
     ./roles/terraform
+    ./roles/vnc_client
     ./roles/vscode
     ./roles/wasm
-    ./roles/vnc_client
-    ./roles/chromecast
-    ./roles/memtest86
-    ./roles/kodi
-    ./roles/ansible
-    ./roles/bluetooth
-    ./roles/sm64ex
-    ./roles/shipwright
-    ./roles/2ship2harkinian
-    ./roles/nix_index
-    ./roles/flux
-    ./roles/tekton
-    ./roles/gnuplot
-    ./roles/sops
-    ./roles/gcloud
-    ./roles/steam_run_free
-    ./roles/pcsx2
-    ./roles/hydra
-    ./roles/shikane
+    ./roles/waybar
+    ./roles/wireguard
+    ./roles/zfs
+    ./roles/zrepl
+    ./roles/zsh
+    ./util/unfree_polyfill
   ];
 
   nix.settings.experimental-features = [

nix/configuration/roles/network/default.nix

@@ -68,4 +68,25 @@
     # Set wifi to US
     options cfg80211 ieee80211_regdom=US
   '';
+
+  boot.kernel.sysctl = {
+    # Enable TCP packetization-layer PMTUD when an ICMP black hole is detected.
+    "net.ipv4.tcp_mtu_probing" = 1;
+    # Switch to bbr tcp congestion control which should be better on lossy connections like bad wifi.
+    # We set this in the kernel config, but include this here for unoptimized builds.
+    "net.ipv4.tcp_congestion_control" = "bbr";
+    # Don't do a slow start after a connection has been idle for a single RTO.
+    "net.ipv4.tcp_slow_start_after_idle" = 0;
+    # 3x time to accumulate filesystem changes before flushing to disk.
+    "vm.dirty_writeback_centisecs" = 1500;
+    # Adjust ttl
+    "net.ipv4.ip_default_ttl" = 65;
+    "net.ipv6.conf.all.hop_limit" = 65;
+    "net.ipv6.conf.default.hop_limit" = 65;
+    # Enable IPv6 Privacy Extensions
+    "net.ipv6.conf.all.use_tempaddr" = 2;
+    # Enable IPv6 Privacy Extensions
+    # This is enabled by default in nixos.
+    # "net.ipv6.conf.default.use_tempaddr" = 2;
+  };
 }

nix/steam_deck/configuration/home.nix

@@ -10,6 +10,7 @@
     ./roles/2ship2harkinian
     ./roles/ares
     ./roles/dolphin
+    ./roles/duckstation
     ./roles/global_options
     ./roles/graphics
     ./roles/pcsx2

nix/steam_deck/configuration/hosts/deck/default.nix

@@ -11,6 +11,7 @@
   config = {
     me.ares.enable = true;
     me.dolphin.enable = true;
+    me.duckstation.enable = true;
     me.graphical = true;
     me.optimizations.enable = true;
     me.pcsx2.enable = true;

nix/steam_deck/configuration/roles/duckstation/default.nix

@@ -0,0 +1,90 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  steam_duckstation = pkgs.writeScriptBin "steam_duckstation" ''
+    export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:${pkgs.libglvnd}/lib"
+    exec ${pkgs.duckstation}/bin/duckstation-qt "''${@}"
+  '';
+in
+{
+  imports = [ ];
+
+  options.me = {
+    duckstation.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      example = true;
+      description = "Whether we want to install duckstation.";
+    };
+  };
+
+  config = lib.mkIf config.me.duckstation.enable (
+    lib.mkMerge [
+      (lib.mkIf config.me.graphical {
+        home.packages = with pkgs; [
+          duckstation
+          steam_duckstation
+        ];
+
+        home.file.".local/share/duckstation/settings.ini" = {
+          source = ./files/settings.ini;
+        };
+
+        me.persist.directories = [
+          ".local/share/duckstation/memcards"
+          ".local/share/duckstation/savestates"
+        ];
+        me.state.directories = [
+          ".local/share/duckstation/cache"
+          ".local/share/duckstation/shaders"
+          ".local/share/duckstation/screenshots"
+          ".local/share/duckstation/videos"
+          ".local/share/duckstation/covers"
+        ];
+
+        nixpkgs.overlays = [
+          (
+            final: prev:
+            let
+              optimizeWithFlags =
+                pkg: flags:
+                pkg.overrideAttrs (old: {
+                  env.CXXFLAGS = (old.env.CXXFLAGS or "") + (lib.strings.concatStringsSep " " flags);
+                });
+              original_package =
+                if config.me.optimizations.enable then
+                  (optimizeWithFlags prev.duckstation [
+                    "-march=znver2"
+                    "-mtune=znver2"
+                  ])
+                else
+                  prev.duckstation;
+            in
+            {
+              duckstation = pkgs.buildEnv {
+                name = prev.duckstation.name;
+                paths = [
+                  (config.lib.nixGL.wrap original_package)
+                ];
+                extraOutputsToInstall = [
+                  "man"
+                  "doc"
+                  "info"
+                ];
+                # We have to use 555 instead of the normal 444 here because the .desktop file ends up inside $HOME on steam deck and desktop files must be either not in $HOME or must be executable, otherwise KDE Plasma refuses to execute them.
+                postBuild = ''
+                  chmod 0555 $out/share/applications/org.duckstation.DuckStation.desktop
+                '';
+              };
+            }
+          )
+        ];
+      })
+    ]
+  );
+}

nix/steam_deck/configuration/roles/duckstation/files/settings.ini

@@ -0,0 +1,368 @@
+[Main]
+SettingsVersion = 3
+EmulationSpeed = 1
+FastForwardSpeed = 0
+TurboSpeed = 0
+SyncToHostRefreshRate = false
+IncreaseTimerResolution = true
+InhibitScreensaver = true
+StartPaused = false
+StartFullscreen = false
+PauseOnFocusLoss = true
+PauseOnControllerDisconnection = false
+SaveStateOnExit = true
+CreateSaveStateBackups = true
+SaveStateCompression = ZstDefault
+ConfirmPowerOff = false
+EnableDiscordPresence = false
+LoadDevicesFromSaveStates = false
+DisableAllEnhancements = false
+RewindEnable = false
+RewindFrequency = 10
+RewindSaveSlots = 10
+RunaheadFrameCount = 0
+SetupWizardIncomplete = false
+
+
+[Console]
+Region = Auto
+Enable8MBRAM = false
+EnableCheats = false
+
+
+[PINE]
+Enabled = false
+Slot = 28011
+
+
+[CPU]
+ExecutionMode = Recompiler
+OverclockEnable = false
+OverclockNumerator = 1
+OverclockDenominator = 1
+RecompilerMemoryExceptions = false
+RecompilerBlockLinking = true
+RecompilerICache = false
+FastmemMode = MMap
+
+
+[GPU]
+Renderer = Automatic
+Adapter = 
+ResolutionScale = 3
+Multisamples = 1
+UseDebugDevice = false
+DisableShaderCache = false
+DisableDualSourceBlend = false
+DisableFramebufferFetch = false
+DisableTextureBuffers = false
+DisableTextureCopyToSelf = false
+DisableMemoryImport = false
+DisableRasterOrderViews = false
+PerSampleShading = false
+UseThread = true
+ThreadedPresentation = false
+UseSoftwareRendererForReadbacks = false
+TrueColor = true
+Debanding = false
+ScaledDithering = true
+ForceRoundTextureCoordinates = false
+AccurateBlending = false
+TextureFilter = Nearest
+SpriteTextureFilter = 
+LineDetectMode = Disabled
+DownsampleMode = Disabled
+DownsampleScale = 1
+WireframeMode = Disabled
+DisableInterlacing = true
+ForceNTSCTimings = false
+WidescreenHack = false
+ChromaSmoothing24Bit = false
+PGXPEnable = false
+PGXPCulling = true
+PGXPTextureCorrection = true
+PGXPColorCorrection = false
+PGXPVertexCache = false
+PGXPCPU = false
+PGXPPreserveProjFP = false
+PGXPTolerance = -1
+PGXPDepthBuffer = false
+PGXPDisableOn2DPolygons = false
+PGXPDepthClearThreshold = 300
+
+
+[Display]
+DeinterlacingMode = Adaptive
+CropMode = Overscan
+ActiveStartOffset = 0
+ActiveEndOffset = 0
+LineStartOffset = 0
+LineEndOffset = 0
+Force4_3For24Bit = false
+AspectRatio = Auto (Game Native)
+Alignment = Center
+Rotation = Normal
+Scaling = BilinearSmooth
+OptimalFramePacing = false
+PreFrameSleep = false
+SkipPresentingDuplicateFrames = false
+PreFrameSleepBuffer = 2
+VSync = true
+DisableMailboxPresentation = true
+ExclusiveFullscreenControl = Automatic
+ScreenshotMode = InternalResolution
+ScreenshotFormat = PNG
+ScreenshotQuality = 85
+CustomAspectRatioNumerator = 0
+ShowOSDMessages = true
+ShowFPS = false
+ShowSpeed = false
+ShowResolution = false
+ShowLatencyStatistics = false
+ShowGPUStatistics = false
+ShowCPU = false
+ShowGPU = false
+ShowFrameTimes = false
+ShowStatusIndicators = true
+ShowInputs = false
+ShowEnhancements = false
+OSDScale = 100
+StretchVertically = false
+
+
+[CDROM]
+ReadaheadSectors = 8
+MechaconVersion = VC1A
+RegionCheck = false
+LoadImageToRAM = false
+LoadImagePatches = false
+MuteCDAudio = false
+ReadSpeedup = 1
+SeekSpeedup = 1
+
+
+[Audio]
+Backend = Cubeb
+Driver = 
+OutputDevice = 
+StretchMode = TimeStretch
+BufferMS = 50
+OutputLatencyMS = 20
+OutputLatencyMinimal = false
+StretchSequenceLengthMS = 30
+StretchSeekWindowMS = 20
+StretchOverlapMS = 10
+StretchUseQuickSeek = false
+StretchUseAAFilter = false
+OutputVolume = 100
+FastForwardVolume = 100
+OutputMuted = false
+
+
+[Hacks]
+UseOldMDECRoutines = false
+ExportSharedMemory = false
+DMAMaxSliceTicks = 1000
+DMAHaltTicks = 100
+GPUFIFOSize = 16
+GPUMaxRunAhead = 128
+
+
+[PCDrv]
+Enabled = false
+EnableWrites = false
+Root = 
+
+
+[BIOS]
+TTYLogging = false
+PatchFastBoot = false
+SearchDirectory = ../../../.persist/manual/games/sony_ps2/bios
+
+
+[MemoryCards]
+Card1Type = PerGameTitle
+Card2Type = None
+UsePlaylistTitle = true
+Directory = memcards
+
+
+[ControllerPorts]
+MultitapMode = Disabled
+PointerXScale = 8
+PointerYScale = 8
+PointerXInvert = false
+PointerYInvert = false
+
+
+[Cheevos]
+Enabled = false
+ChallengeMode = false
+Notifications = true
+LeaderboardNotifications = true
+SoundEffects = true
+Overlays = true
+EncoreMode = false
+SpectatorMode = false
+UnofficialTestMode = false
+UseFirstDiscFromPlaylist = true
+UseRAIntegration = false
+NotificationsDuration = 5
+LeaderboardsDuration = 10
+
+
+[Logging]
+LogLevel = Info
+LogFilter = 
+LogTimestamps = true
+LogToConsole = true
+LogToDebug = false
+LogToWindow = false
+LogToFile = false
+
+
+[Debug]
+ShowVRAM = false
+DumpCPUToVRAMCopies = false
+DumpVRAMToCPUCopies = false
+ShowGPUState = false
+ShowCDROMState = false
+ShowSPUState = false
+ShowTimersState = false
+ShowMDECState = false
+ShowDMAState = false
+
+
+[TextureReplacements]
+EnableVRAMWriteReplacements = false
+PreloadTextures = false
+DumpVRAMWrites = false
+DumpVRAMWriteForceAlphaChannel = true
+DumpVRAMWriteWidthThreshold = 128
+DumpVRAMWriteHeightThreshold = 128
+
+
+[MediaCapture]
+Backend = FFmpeg
+Container = mp4
+VideoCapture = true
+VideoWidth = 640
+VideoHeight = 480
+VideoAutoSize = false
+VideoBitrate = 6000
+VideoCodec = 
+VideoCodecUseArgs = false
+AudioCodecArgs = 
+AudioCapture = true
+AudioBitrate = 128
+AudioCodec = 
+AudioCodecUseArgs = false
+
+
+[Folders]
+Cache = cache
+Cheats = cheats
+Covers = covers
+Dumps = dump
+GameIcons = gameicons
+GameSettings = gamesettings
+InputProfiles = inputprofiles
+SaveStates = savestates
+Screenshots = screenshots
+Shaders = shaders
+Textures = textures
+UserResources = resources
+Videos = videos
+
+
+[InputSources]
+SDL = true
+SDLControllerEnhancedMode = false
+SDLPS5PlayerLED = false
+XInput = false
+RawInput = false
+
+
+[Pad1]
+Type = AnalogController
+Up = SDL-0/DPadUp
+Right = SDL-0/DPadRight
+Down = SDL-0/DPadDown
+Left = SDL-0/DPadLeft
+Triangle = SDL-0/Y
+Circle = SDL-0/B
+Cross = SDL-0/A
+Square = SDL-0/X
+Select = SDL-0/Back
+Start = SDL-0/Start
+L1 = SDL-0/LeftShoulder
+R1 = SDL-0/RightShoulder
+L2 = SDL-0/+LeftTrigger
+R2 = SDL-0/+RightTrigger
+L3 = SDL-0/LeftStick
+R3 = SDL-0/RightStick
+LLeft = SDL-0/-LeftX
+LRight = SDL-0/+LeftX
+LDown = SDL-0/+LeftY
+LUp = SDL-0/-LeftY
+RLeft = SDL-0/-RightX
+RRight = SDL-0/+RightX
+RDown = SDL-0/+RightY
+RUp = SDL-0/-RightY
+Analog = SDL-0/Guide
+SmallMotor = SDL-0/SmallMotor
+LargeMotor = SDL-0/LargeMotor
+
+
+[Pad2]
+Type = None
+
+
+[Pad3]
+Type = None
+
+
+[Pad4]
+Type = None
+
+
+[Pad5]
+Type = None
+
+
+[Pad6]
+Type = None
+
+
+[Pad7]
+Type = None
+
+
+[Pad8]
+Type = None
+
+
+[Hotkeys]
+FastForward = Keyboard/Tab
+TogglePause = Keyboard/Space
+Screenshot = Keyboard/F10
+ToggleFullscreen = Keyboard/F11
+OpenPauseMenu = Keyboard/Escape
+LoadSelectedSaveState = Keyboard/F1
+SaveSelectedSaveState = Keyboard/F2
+SelectPreviousSaveStateSlot = Keyboard/F3
+SelectNextSaveStateSlot = Keyboard/F4
+
+
+[UI]
+UnofficialBuildWarningConfirmed = true
+MainWindowGeometry = AdnQywADAAAAAAAAAAAAAAAAAx8AAAKOAAAAAAAAAAAAAAMfAAACjgAAAAAAAAAABQAAAAAAAAAAAAAAAx8AAAKO
+MainWindowState = AAAA/wAAAAD9AAAAAAAAAyAAAAJjAAAABAAAAAQAAAAIAAAACPwAAAABAAAAAgAAAAEAAAAOAHQAbwBvAGwAQgBhAHIAAAAAAP////8AAAAAAAAAAA==
+
+
+[AutoUpdater]
+CheckAtStartup = false
+
+
+[GameList]
+RecursivePaths = /home/deck/.persist/manual/games/sony_ps1/roms