diff --git a/modules/darwin/apps.nix b/modules/darwin/apps.nix
index 5f8c561b..b217c8f2 100644
--- a/modules/darwin/apps.nix
+++ b/modules/darwin/apps.nix
@@ -158,6 +158,8 @@ in {
       "telegram"
       "discord"
       "microsoft-remote-desktop"
+      "moonlight" # remote desktop client
+      "rustdesk"
 
       # "anki"
       "shadowsocksx-ng" # proxy tool
diff --git a/modules/nixos/desktop/game/steam.nix b/modules/nixos/desktop/game/steam.nix
index d16274ca..cf58a24e 100644
--- a/modules/nixos/desktop/game/steam.nix
+++ b/modules/nixos/desktop/game/steam.nix
@@ -1,6 +1,7 @@
 # https://github.com/fufexan/dotfiles/blob/483680e/system/programs/steam.nix
 {pkgs, ...}: {
   # https://wiki.archlinux.org/title/steam
+  # Games installed by Steam works fine on NixOS, no other configuration needed.
   programs.steam = {
     # Some location that should be persistent:
     #   ~/.local/share/Steam - The default Steam install location
diff --git a/modules/nixos/desktop/remote-desktop/README.md b/modules/nixos/desktop/remote-desktop/README.md
new file mode 100644
index 00000000..2eef9997
--- /dev/null
+++ b/modules/nixos/desktop/remote-desktop/README.md
@@ -0,0 +1,10 @@
+# Remote Desktop
+
+1. **X11**: We have `xrdp` & `ssh -x` for remote desktop access, which works well for most use cases.
+2. **Wayland**: (not tested)
+  1. `waypipe`: similar to `ssh -X`, transfer wayland data over a ssh connection.
+  2. [rustdesk](https://github.com/rustdesk/rustdesk): a remote desktop client/server written in rust.
+    1. confirmed broken currently: <https://www.reddit.com/r/rustdesk/comments/1912373/rustdesk_on_hyprland/>
+  3. [sunshine server](https://github.com/LizardByte/Sunshine) + [moonlight client](https://github.com/moonlight-stream): It's designed for game streaming, but it can be used for remote desktop as well.
+    1. broken currently: <https://github.com/LizardByte/Sunshine/pull/1977>
+
diff --git a/modules/nixos/desktop/remote-desktop/default.nix b/modules/nixos/desktop/remote-desktop/default.nix
new file mode 100644
index 00000000..3ab750cd
--- /dev/null
+++ b/modules/nixos/desktop/remote-desktop/default.nix
@@ -0,0 +1,13 @@
+{
+  pkgs,
+  mylib,
+  ...
+}: {
+  imports = mylib.scanPaths ./.;
+
+  environment.systemPackages = with pkgs; [
+    waypipe
+    moonlight-qt # moonlight client, for streaming games/desktop from a PC
+    rustdesk # p2p remote desktop
+  ];
+}
diff --git a/modules/nixos/desktop/remote-desktop/sunshine.nix b/modules/nixos/desktop/remote-desktop/sunshine.nix
new file mode 100644
index 00000000..b8e9bdcc
--- /dev/null
+++ b/modules/nixos/desktop/remote-desktop/sunshine.nix
@@ -0,0 +1,70 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+# ===============================================================================
+#
+# Sunshine: A self-hosted game stream server for Moonlight(Client).
+# It's designed for game streaming, but it can be used for remote desktop as well.
+#
+# TODO: currently broken, fixed but not released yet: https://github.com/LizardByte/Sunshine/pull/1977
+#
+# How to use(Web Console: <https://localhost:47990/>):
+#  https://docs.lizardbyte.dev/projects/sunshine/en/latest/about/usage.html
+#
+# Check Service Status
+#   systemctl --user status sunshine
+# Check logs
+#   journalctl --user -u sunshine --since "2 minutes ago"
+#
+# References:
+#   https://github.com/LongerHV/nixos-configuration/blob/c7a06a2125673c472946cda68b918f68c635c41f/modules/nixos/sunshine.nix
+#   https://github.com/RandomNinjaAtk/nixos/blob/fc7d6e8734e6de175e0a18a43460c48003108540/services.sunshine.nix
+#
+# ===============================================================================
+{
+  security.wrappers.sunshine = {
+    owner = "root";
+    group = "root";
+    capabilities = "cap_sys_admin+p";
+    source = "${pkgs.sunshine}/bin/sunshine";
+  };
+
+  # Requires to simulate input
+  boot.kernelModules = ["uinput"];
+  services.udev.extraRules = ''
+    KERNEL=="uinput", SUBSYSTEM=="misc", OPTIONS+="static_node=uinput", TAG+="uaccess"
+  '';
+
+  # systemd.user.services.sunshine = {
+  #   description = "A self-hosted game stream server for Moonlight(Client)";
+  #   after = ["graphical-session-pre.target"];
+  #   wants = ["graphical-session-pre.target"];
+  #   wantedBy = ["graphical-session.target"];
+  #   startLimitIntervalSec = 500;
+  #   startLimitBurst = 5;
+  #
+  #   serviceConfig = {
+  #     ExecStart = "${config.security.wrapperDir}/sunshine";
+  #     Restart = "on-failure";
+  #     RestartSec = "5s";
+  #   };
+  # };
+
+  networking.firewall = {
+    allowedTCPPortRanges = [
+      {
+        from = 47984;
+        to = 48010;
+      }
+    ];
+    allowedUDPPortRanges = [
+      {
+        from = 47998;
+        to = 48010;
+      }
+    ];
+  };
+}
diff --git a/modules/nixos/desktop/remote-desktop/tailscale.nix b/modules/nixos/desktop/remote-desktop/tailscale.nix
new file mode 100644
index 00000000..f493c3d2
--- /dev/null
+++ b/modules/nixos/desktop/remote-desktop/tailscale.nix
@@ -0,0 +1,76 @@
+{
+  config,
+  pkgs,
+  ...
+}:
+# =============================================================
+#
+# Tailscale - your own private network(VPN) that uses WireGuard
+#
+# It's open souce and free for personal use,
+# and it's really easy to setup and use.
+# Tailscale has great client coverage for Linux, windows, Mac, android, and iOS.
+# Tailscale is more mature and stable compared to other alternatives such as netbird/netmaker.
+# Maybe I'll give netbird/netmaker a try when they are more mature, but for now, I'm sticking with Tailscale.
+#
+# How to use:
+#  1. Create a Tailscale account at https://login.tailscale.com
+#  2. Login via `tailscale login`
+#  3. join into your Tailscale network via `tailscale up`
+#  4. If you prefer automatic connection to Tailscale, then generate a authkey, and uncomment the systemd service below.
+#
+# Status Data:
+#   `journalctl -u tailscaled` shows tailscaled's logs
+#   logs indicate that tailscale store its data in /var/lib/tailscale
+#   which is already persistent across reboots(via impermanence.nix)
+#
+# References:
+#   https://tailscale.com/blog/nixos-minecraft
+#
+# =============================================================
+{
+  # make the tailscale command usable to users
+  environment.systemPackages = [pkgs.tailscale];
+
+  # enable the tailscale service
+  services.tailscale.enable = true;
+
+  # create a oneshot job to authenticate to Tailscale
+  # systemd.services.tailscale-autoconnect = {
+  #   description = "Automatic connection to Tailscale";
+  #
+  #   # make sure tailscale is running before trying to connect to tailscale
+  #   after = ["network-pre.target" "tailscale.service"];
+  #   wants = ["network-pre.target" "tailscale.service"];
+  #   wantedBy = ["multi-user.target"];
+  #
+  #   # set this service as a oneshot job
+  #   serviceConfig.Type = "oneshot";
+  #
+  #   # have the job run this shell script
+  #   script = with pkgs; ''
+  #     # wait for tailscaled to settle
+  #     sleep 2
+  #
+  #     # check if we are already authenticated to tailscale
+  #     status="$(${tailscale}/bin/tailscale status -json | ${jq}/bin/jq -r .BackendState)"
+  #     if [ $status = "Running" ]; then # if so, then do nothing
+  #       exit 0
+  #     fi
+  #
+  #     # otherwise authenticate with tailscale
+  #     ${tailscale}/bin/tailscale up -authkey file:${config.age.secrets.tailscale-authkey.path}
+  #   '';
+  # };
+
+  networking.firewall = {
+    # always allow traffic from your Tailscale network
+    trustedInterfaces = ["tailscale0"];
+
+    # allow the Tailscale UDP port through the firewall
+    allowedUDPPorts = [config.services.tailscale.port];
+
+    # allow you to SSH in over the public internet
+    allowedTCPPorts = [22];
+  };
+}