Started working on guest@euporie

hosts/nixos/common/global/openssh.nix

@@ -44,11 +44,19 @@ in
 
   # Add each host in this repo to the knownHosts list
   programs.ssh = {
-    knownHosts = builtins.mapAttrs
-      (name: _: {
-        publicKeyFile = pubKey name;
-        extraHostNames = lib.optional (name == hostname) "localhost";
-      })
-      hosts;
+    knownHosts = lib.pipe hosts [
+      # attrsetof host -> attrsetof { ... }
+      (builtins.mapAttrs
+        # string -> host -> { ... }
+        (name: _: {
+          publicKeyFile = pubKey name;
+          extraHostNames = lib.optional (name == hostname) "localhost";
+        }))
+
+      # attrsetof { ... } -> attrsetof { ... }
+      (lib.attrset.filterAttrs
+        # string -> { ... } -> bool
+        (_: { publicKeyFile, ... }: builtins.pathExists publicKeyFile))
+    ];
   };
 }

hosts/nixos/common/optional/pipewire.nix

@@ -1,6 +1,7 @@
-{
+{ pkgs, ... }: {
   security.rtkit.enable = true;
   hardware.pulseaudio.enable = false;
+
   services.pipewire = {
     enable = true;
     alsa.enable = true;
@@ -10,14 +11,17 @@
   };
 
   # Volume controls
-  environment.shellAliases = {
-    # Relative 
-    "v-up" = "pactl set-sink-volume @DEFAULT_SINK@ +5%";
-    "v-down" = "pactl set-sink-volume @DEFAULT_SINK@ +5%";
+  environment.shellAliases =
+    let pactl = "${pkgs.pulseaudio}/bin/pactl";
+    in
+    {
+      # Relative 
+      "v-up" = "${pactl} set-sink-volume @DEFAULT_SINK@ +5%";
+      "v-down" = "${pactl} set-sink-volume @DEFAULT_SINK@ +5%";
 
-    # Absolute
-    "v-min" = "pactl set-sink-volume @DEFAULT_SINK@ 0%";
-    "v-mid" = "pactl set-sink-volume @DEFAULT_SINK@ 50%";
-    "v-max" = "pactl set-sink-volume @DEFAULT_SINK@ 100%";
-  };
+      # Absolute
+      "v-min" = "${pactl} set-sink-volume @DEFAULT_SINK@ 0%";
+      "v-mid" = "${pactl} set-sink-volume @DEFAULT_SINK@ 50%";
+      "v-max" = "${pactl} set-sink-volume @DEFAULT_SINK@ 100%";
+    };
 }

hosts/nixos/common/users/adrielus.nix

@@ -1,4 +1,4 @@
-{ pkgs, outputs, config, ... }:
+{ pkgs, outputs, config, lib, ... }:
 let
   # Record containing all the hosts
   hosts = outputs.nixosConfigurations;
@@ -16,37 +16,36 @@ in
 
     # Create an user named adrielus
     users.adrielus = {
-      # Make fish the default shell
-      shell = pkgs.fish;
+      # Adds me to some default groups, and creates the home dir 
+      isNormalUser = true;
 
       # File containing my password, managed by agenix
       passwordFile = config.age.secrets.adrielusPassword.path;
 
+      # Set default shell
+      shell = pkgs.fish;
+
       # Add user to the following groups
       extraGroups = [
-        "wheel" # access to sudo
-        "network" # for wireless stuff
-        "networkmanager" # I assume this let's me access network stuff?
-        "lp" # Allows me to use printers
-        "docker" # Allows me to use docker (?)
-        "audio" # Allows me to use audio devices
-        "video" # Allows me to use a webcam
-        "uinput" # I think this let's me write to virtual devices
-        "input" # Does this let me use evdev (?)
-
-        # TODO: find out why I added these here a long time ago
-        "sound"
-        "tty"
+        "wheel" # Access to sudo
+        "lp" # Printers
+        "audio" # Audio devices
+        "video" # Webcam and the like
+        "network" # for wireless stuff (???)
       ];
 
-      # Adds me to some default groups, and creates the home dir 
-      isNormalUser = true;
-
       openssh.authorizedKeys.keyFiles =
-        builtins.attrValues # attrsetof path -> path[]
-          (builtins.mapAttrs # ... -> attrsetof host -> attrsetof path
-            (name: _: idKey name) # string -> host -> path
-            hosts);
+        lib.pipe hosts [
+          # attrsetof host -> attrsetof path
+          (builtins.mapAttrs
+            (name: _: idKey name)) # string -> host -> path
+
+          # attrsetof path -> path[]
+          builtins.attrValues
+
+          # path[] -> path[]
+          (builtins.filter builtins.pathExists)
+        ];
     };
   };
 }