Initial commit of NixOS configuration

system_components/fish_root.nix

@@ -0,0 +1,18 @@
+{pkgs, ...}:{
+  programs.fish.enable = true;
+
+  environment.systemPackages = with pkgs; [
+    nix-your-shell
+    btop
+    fastfetch
+    wget
+  ];
+  
+  programs.bash.interactiveShellInit = ''
+  if [[ $(${pkgs.procps}/bin/ps --no-header --pid=$PPID --format=comm) != "fish" && -z ''${BASH_EXECUTION_STRING} ]]
+  then
+    shopt -q login_shell && LOGIN_OPTION='--login' || LOGIN_OPTION=""
+    exec ${pkgs.fish}/bin/fish $LOGIN_OPTION
+  fi
+  '';
+}