diff --git a/pkgs/tools/misc/docker-sync/Gemfile b/pkgs/tools/misc/docker-sync/Gemfile
deleted file mode 100644
index 2c8125a46165..000000000000
--- a/pkgs/tools/misc/docker-sync/Gemfile
+++ /dev/null
@@ -1,3 +0,0 @@
-source 'https://rubygems.org' do
-  gem 'docker-sync'
-end
diff --git a/pkgs/tools/misc/docker-sync/Gemfile.lock b/pkgs/tools/misc/docker-sync/Gemfile.lock
deleted file mode 100644
index 4f14b77d0ef0..000000000000
--- a/pkgs/tools/misc/docker-sync/Gemfile.lock
+++ /dev/null
@@ -1,29 +0,0 @@
-GEM
-  remote: https://rubygems.org/
-  specs:
-    backticks (1.0.2)
-    daemons (1.3.1)
-    docker-compose (1.1.10)
-      backticks (~> 1.0)
-    docker-sync (0.5.9)
-      daemons (~> 1.2, >= 1.2.3)
-      docker-compose (~> 1.1, >= 1.1.7)
-      dotenv (~> 2.1, >= 2.1.1)
-      gem_update_checker (~> 0.2.0, >= 0.2.0)
-      os
-      terminal-notifier (= 2.0.0)
-      thor (~> 0.20, >= 0.20.0)
-    dotenv (2.6.0)
-    gem_update_checker (0.2.0)
-    os (1.0.0)
-    terminal-notifier (2.0.0)
-    thor (0.20.3)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  docker-sync!
-
-BUNDLED WITH
-   2.1.4
diff --git a/pkgs/tools/misc/docker-sync/default.nix b/pkgs/tools/misc/docker-sync/default.nix
deleted file mode 100644
index 0336a7b07e08..000000000000
--- a/pkgs/tools/misc/docker-sync/default.nix
+++ /dev/null
@@ -1,29 +0,0 @@
-{
-  lib,
-  ruby,
-  bundlerApp,
-  bundlerUpdateScript,
-}:
-
-bundlerApp {
-  pname = "docker-sync";
-  gemdir = ./.;
-
-  inherit ruby;
-
-  exes = [ "docker-sync" ];
-
-  passthru.updateScript = bundlerUpdateScript "docker-sync";
-
-  meta = with lib; {
-    description = "Run your application at full speed while syncing your code for development";
-    homepage = "http://docker-sync.io";
-    license = licenses.gpl3;
-    maintainers = with maintainers; [
-      manveru
-      nicknovitski
-    ];
-    platforms = platforms.unix;
-    mainProgram = "docker-sync";
-  };
-}
diff --git a/pkgs/tools/misc/docker-sync/gemset.nix b/pkgs/tools/misc/docker-sync/gemset.nix
deleted file mode 100644
index db73c92ed3b5..000000000000
--- a/pkgs/tools/misc/docker-sync/gemset.nix
+++ /dev/null
@@ -1,84 +0,0 @@
-{
-  backticks = {
-    source = {
-      remotes = [ "https://rubygems.org" ];
-      sha256 = "1vr28l9vckavnrb9pnqrhcmnk3wsvvpas8jjh165w2rzv3sdkws5";
-      type = "gem";
-    };
-    version = "1.0.2";
-  };
-  daemons = {
-    source = {
-      remotes = [ "https://rubygems.org" ];
-      sha256 = "0l5gai3vd4g7aqff0k1mp41j9zcsvm2rbwmqn115a325k9r7pf4w";
-      type = "gem";
-    };
-    version = "1.3.1";
-  };
-  docker-compose = {
-    dependencies = [ "backticks" ];
-    source = {
-      remotes = [ "https://rubygems.org" ];
-      sha256 = "00v3y182rmpq34dl91iprvhc50vw8hysy2h7iy3ihmmm9pgg71gc";
-      type = "gem";
-    };
-    version = "1.1.10";
-  };
-  docker-sync = {
-    dependencies = [
-      "daemons"
-      "docker-compose"
-      "dotenv"
-      "gem_update_checker"
-      "os"
-      "terminal-notifier"
-      "thor"
-    ];
-    source = {
-      remotes = [ "https://rubygems.org" ];
-      sha256 = "1vrlcggj7k8w30b76f23p64yx4wg7p7mq9lp6lsnh2ysq9n3cjqg";
-      type = "gem";
-    };
-    version = "0.5.9";
-  };
-  dotenv = {
-    source = {
-      remotes = [ "https://rubygems.org" ];
-      sha256 = "0rgl2kqhnxqbjvi9brbvb52iaq1z8yi0pl0bawk4fm6kl9igxr8f";
-      type = "gem";
-    };
-    version = "2.6.0";
-  };
-  gem_update_checker = {
-    source = {
-      remotes = [ "https://rubygems.org" ];
-      sha256 = "0ckbz4q3q59kkv138n0cmsyida0wg45pwscxzf5vshxcrxhmq3x7";
-      type = "gem";
-    };
-    version = "0.2.0";
-  };
-  os = {
-    source = {
-      remotes = [ "https://rubygems.org" ];
-      sha256 = "1s401gvhqgs2r8hh43ia205mxsy1wc0ib4k76wzkdpspfcnfr1rk";
-      type = "gem";
-    };
-    version = "1.0.0";
-  };
-  terminal-notifier = {
-    source = {
-      remotes = [ "https://rubygems.org" ];
-      sha256 = "1slc0y8pjpw30hy21v8ypafi8r7z9jlj4bjbgz03b65b28i2n3bs";
-      type = "gem";
-    };
-    version = "2.0.0";
-  };
-  thor = {
-    source = {
-      remotes = [ "https://rubygems.org" ];
-      sha256 = "1yhrnp9x8qcy5vc7g438amd5j9sw83ih7c30dr6g6slgw9zj3g29";
-      type = "gem";
-    };
-    version = "0.20.3";
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 7700dcdcd4ec..04522b9243e3 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -769,6 +769,7 @@ mapAliases {
   docker_27 = throw "'docker_27' has been removed because it has been unmaintained since May 2025. Use docker_28 or newer instead."; # Added 2025-06-15
   docker-compose_1 = throw "'docker-compose_1' has been removed because it has been unmaintained since May 2021. Use docker-compose instead."; # Added 2024-07-29
   docker-distribution = distribution; # Added 2023-12-26
+  docker-sync = throw "'docker-sync' has been removed because it was broken and unmaintained"; # Added 2025-08-26
   dolphin-emu-beta = dolphin-emu; # Added 2023-02-11
   dolphinEmu = throw "'dolphinEmu' has been renamed to/replaced by 'dolphin-emu'"; # Converted to throw 2024-10-17
   dolphinEmuMaster = throw "'dolphinEmuMaster' has been renamed to/replaced by 'dolphin-emu-beta'"; # Converted to throw 2024-10-17
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 4d0f3c1ad7c5..2c8d19e00e6d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -434,8 +434,6 @@ with pkgs;
 
   nix-prefetch-docker = callPackage ../build-support/docker/nix-prefetch-docker.nix { };
 
-  docker-sync = callPackage ../tools/misc/docker-sync { };
-
   # Dotnet
 
   dotnetCorePackages = recurseIntoAttrs (callPackage ../development/compilers/dotnet { });