steam

flake.lock

@@ -3,7 +3,9 @@
     "deploy-rs": {
       "inputs": {
         "flake-compat": "flake-compat",
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
         "utils": "utils"
       },
       "locked": {
@@ -38,7 +40,7 @@
     },
     "home-manager": {
       "inputs": {
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs"
       },
       "locked": {
         "lastModified": 1642882610,
@@ -55,22 +57,6 @@
       }
     },
     "nixpkgs": {
-      "locked": {
-        "lastModified": 1632086102,
-        "narHash": "sha256-wVTcf0UclFS+zHtfPToB13jIO7n0U9N50MuRbPjQViE=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "e0ce3c683ae677cf5aab597d645520cddd13392b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
       "locked": {
         "lastModified": 1643000262,
         "narHash": "sha256-8hrbufiCcZgicU8UvHaRkruYuzM8z3lJvQkSh9ezMEg=",
@@ -84,7 +70,7 @@
         "type": "indirect"
       }
     },
-    "nixpkgs_3": {
+    "nixpkgs_2": {
       "locked": {
         "lastModified": 1642903813,
         "narHash": "sha256-0lNfGW8sNfyTrixoQhVG00Drl/ECaf5GbfKAQ1ZDoyE=",
@@ -104,7 +90,7 @@
       "inputs": {
         "deploy-rs": "deploy-rs",
         "home-manager": "home-manager",
-        "nixpkgs": "nixpkgs_3"
+        "nixpkgs": "nixpkgs_2"
       }
     },
     "utils": {

flake.nix

@@ -5,6 +5,7 @@
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     home-manager.url = "github:nix-community/home-manager";
     deploy-rs.url = "github:serokell/deploy-rs";
+    deploy-rs.inputs.nixpkgs.follows = "nixpkgs";
   };
 
   outputs = { ... }@inputs: import ./outputs.nix inputs;

home/dev/all/deploy-rs.nix

@@ -0,0 +1,3 @@
+{ pkgs, inputs, ... }: {
+  home.packages = with pkgs; [ inputs.deploy-rs.defaultPackage.${pkgs.system} ];
+}

home/dev/all/extra.nix

@@ -7,6 +7,5 @@
     tmux
     socat
     file
-    inputs.deploy-rs.defaultPackage.${pkgs.system}
   ];
 }

home/dev/small/small.nix

@@ -1,5 +1,5 @@
 { tree, ... }: {
-  # basically everything apart from home.dev.debugging
+  # basically everything apart from home.all.dev.debugging and home.all.dev.deploy-rs
   imports = with tree; [
     home.dev.all.archives
     home.dev.all.editors

hosts/hetzner-vm/services/mpd.nix

@@ -1,4 +1,12 @@
-{ pkgs, ... }: {
+{ pkgs, lib, ... }: {
+  environment.systemPackages = with pkgs; [ mpc_cli ];
+
+  sound.enable = true;
+  hardware.pulseaudio = {
+    systemWide = true;
+    enable = true;
+  };
+
   services.mpd = {
     enable = true;
     network.listenAddress = "0.0.0.0";
@@ -23,6 +31,11 @@
         always_on       "yes"
         tags            "yes"
       }
+      audio_output {
+        type "pulse"
+        name "Out"
+        server "lappy.tailscale-internal.genderfucked.monster"
+      }
     '';
   };
 

hosts/lappy/profiles/mpd.nix

@@ -3,7 +3,7 @@
 
   hardware.pulseaudio = {
     extraConfig =
-      "load-module module-native-protocol-tcp auth-ip-acl=127.0.0.1";
+      "load-module module-native-protocol-tcp auth-anonymous=1 auth-ip-acl=127.0.0.1;100.64.0.0/8";
   };
 
   environment.systemPackages = with pkgs; [ mpc_cli ];

hosts/raspberry/boot.nix

@@ -0,0 +1,52 @@
+{ lib, pkgs, config, ... }: {
+  boot.loader.grub.enable = false;
+  boot.loader.generic-extlinux-compatible.enable = true;
+
+  boot.consoleLogLevel = lib.mkDefault 7;
+
+  # The serial ports listed here are:
+  # - ttyS0: for Tegra (Jetson TX1)
+  # - ttyAMA0: for QEMU's -machine virt
+  boot.kernelParams =
+    [ "console=tty0" ];
+
+  sdImage = {
+    populateFirmwareCommands = let
+      configTxt = pkgs.writeText "config.txt" ''
+        [pi3]
+        kernel=u-boot-rpi3.bin
+        [pi4]
+        kernel=u-boot-rpi4.bin
+        enable_gic=1
+        armstub=armstub8-gic.bin
+        # Otherwise the resolution will be weird in most cases, compared to
+        # what the pi3 firmware does by default.
+        disable_overscan=1
+        [all]
+        # Boot in 64-bit mode.
+        arm_64bit=1
+        # U-Boot needs this to work, regardless of whether UART is actually used or not.
+        # Look in arch/arm/mach-bcm283x/Kconfig in the U-Boot tree to see if this is still
+        # a requirement in the future.
+        enable_uart=1
+        # Prevent the firmware from smashing the framebuffer setup done by the mainline kernel
+        # when attempting to show low-voltage or overtemperature warnings.
+        avoid_warnings=1
+      '';
+    in ''
+      (cd ${pkgs.raspberrypifw}/share/raspberrypi/boot && cp bootcode.bin fixup*.dat start*.elf $NIX_BUILD_TOP/firmware/)
+      # Add the config
+      cp ${configTxt} firmware/config.txt
+      # Add pi3 specific files
+      cp ${pkgs.ubootRaspberryPi3_64bit}/u-boot.bin firmware/u-boot-rpi3.bin
+      # Add pi4 specific files
+      cp ${pkgs.ubootRaspberryPi4_64bit}/u-boot.bin firmware/u-boot-rpi4.bin
+      cp ${pkgs.raspberrypi-armstubs}/armstub8-gic.bin firmware/armstub8-gic.bin
+      cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-4-b.dtb firmware/
+    '';
+    populateRootCommands = ''
+      mkdir -p ./files/boot
+      ${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
+    '';
+  };
+}

hosts/raspberry/raspberry.nix

@@ -9,10 +9,13 @@
     profiles.tailscale
     profiles.sshd
 
+    # make bluetooth work on pi
+    hosts.raspberry.services.btattach
     profiles.connectivity.bluetooth
     profiles.connectivity.ios
 
-    (modulesPath + "/installer/sd-card/sd-image-aarch64.nix")
+    ./boot.nix
+    (modulesPath + "/installer/sd-card/sd-image.nix")
   ];
 
   home-manager.users.root = {
@@ -22,7 +25,8 @@
     imports = with tree; [ home.base home.dev.small ];
   };
 
-  boot.kernelPackages = pkgs.linuxPackages_5_15;
+  boot.supportedFilesystems = lib.mkForce [ "vfat" ];
+  boot.kernelPackages = pkgs.linuxPackages_latest;
 
   networking.hostName = "raspberry";
   time.timeZone = "Europe/London";

hosts/raspberry/services/btattach.nix

@@ -0,0 +1,11 @@
+{ pkgs, ... }: {
+  systemd.services.btattach = {
+    before = [ "bluetooth.service" ];
+    after = [ "dev-ttyAMA0.device" ];
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      ExecStart =
+        "${pkgs.bluez}/bin/btattach -B /dev/ttyS1 -P bcm -S 3000000";
+    };
+  };
+}

outputs.nix

@@ -62,7 +62,7 @@ in {
     username = "root";
     profiles.system = {
       user = "root";
-      path = deploy-rs.lib.x86_64-linux.activate.nixos
+      path = deploy-rs.lib.aarch64-linux.activate.nixos
         self.nixosConfigurations.raspberry;
     };
   };