diff --git a/pkgs/applications/blockchains/optimism/geth.nix b/pkgs/applications/blockchains/optimism/geth.nix
index c4b66ebe829b..dfaa8cb15495 100644
--- a/pkgs/applications/blockchains/optimism/geth.nix
+++ b/pkgs/applications/blockchains/optimism/geth.nix
@@ -39,6 +39,8 @@ buildGoModule rec {
   ];
 
   meta = with lib; {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     description = "";
     homepage = "https://github.com/ethereum-optimism/op-geth";
     license = licenses.gpl3Only;
diff --git a/pkgs/by-name/ma/martin/package.nix b/pkgs/by-name/ma/martin/package.nix
index 5f29e7bf94a4..6fbde09f3fd1 100644
--- a/pkgs/by-name/ma/martin/package.nix
+++ b/pkgs/by-name/ma/martin/package.nix
@@ -54,6 +54,8 @@ rustPlatform.buildRustPackage rec {
   ];
 
   meta = with lib; {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     description = "Blazing fast and lightweight PostGIS vector tiles server";
     homepage = "https://martin.maplibre.org/";
     license = with licenses; [
diff --git a/pkgs/by-name/ne/nearcore/package.nix b/pkgs/by-name/ne/nearcore/package.nix
index c06e6d38e997..1564ded65895 100644
--- a/pkgs/by-name/ne/nearcore/package.nix
+++ b/pkgs/by-name/ne/nearcore/package.nix
@@ -54,6 +54,8 @@ rustPlatform.buildRustPackage rec {
   requiredSystemFeatures = [ "big-parallel" ];
 
   meta = with lib; {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     description = "Reference client for NEAR Protocol";
     homepage = "https://github.com/near/nearcore";
     license = licenses.gpl3;
diff --git a/pkgs/by-name/ol/olaris-server/package.nix b/pkgs/by-name/ol/olaris-server/package.nix
index bd7015506693..22db2d5a5790 100644
--- a/pkgs/by-name/ol/olaris-server/package.nix
+++ b/pkgs/by-name/ol/olaris-server/package.nix
@@ -58,6 +58,8 @@ buildGoModule rec {
   '';
 
   meta = {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     description = "Media manager and transcoding server";
     homepage = "https://gitlab.com/olaris/olaris-server";
     changelog = "https://gitlab.com/olaris/olaris-server/-/releases/v${version}";
diff --git a/pkgs/by-name/ov/oven-media-engine/package.nix b/pkgs/by-name/ov/oven-media-engine/package.nix
index 9afc107d91fa..68ee14aa4a26 100644
--- a/pkgs/by-name/ov/oven-media-engine/package.nix
+++ b/pkgs/by-name/ov/oven-media-engine/package.nix
@@ -84,6 +84,8 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     description = "Open-source streaming video service with sub-second latency";
     mainProgram = "OvenMediaEngine";
     homepage = "https://ovenmediaengine.com";
diff --git a/pkgs/by-name/pr/protoc-gen-twirp/package.nix b/pkgs/by-name/pr/protoc-gen-twirp/package.nix
index a1072f957800..7a0eb8620e68 100644
--- a/pkgs/by-name/pr/protoc-gen-twirp/package.nix
+++ b/pkgs/by-name/pr/protoc-gen-twirp/package.nix
@@ -26,6 +26,8 @@ buildGoModule rec {
   ];
 
   meta = with lib; {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     description = "Simple RPC framework with protobuf service definitions";
     mainProgram = "protoc-gen-twirp";
     homepage = "https://github.com/twitchtv/twirp";
diff --git a/pkgs/by-name/qu/quickwit/package.nix b/pkgs/by-name/qu/quickwit/package.nix
index 72c7698764c2..fdcb038d5515 100644
--- a/pkgs/by-name/qu/quickwit/package.nix
+++ b/pkgs/by-name/qu/quickwit/package.nix
@@ -140,6 +140,8 @@ rustPlatform.buildRustPackage rec {
   ];
 
   meta = with lib; {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     description = "Sub-second search & analytics engine on cloud storage";
     homepage = "https://quickwit.io/";
     license = licenses.agpl3Only;
diff --git a/pkgs/by-name/sc/screen-pipe/package.nix b/pkgs/by-name/sc/screen-pipe/package.nix
index c26a380f77f5..a145114e8443 100644
--- a/pkgs/by-name/sc/screen-pipe/package.nix
+++ b/pkgs/by-name/sc/screen-pipe/package.nix
@@ -61,6 +61,8 @@ rustPlatform.buildRustPackage rec {
   doCheck = false; # Tests fail to build
 
   meta = with lib; {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     description = "Personalized AI powered by what you've seen, said, or heard";
     homepage = "https://github.com/louis030195/screen-pipe";
     license = licenses.mit;
diff --git a/pkgs/by-name/sn/snarkos/package.nix b/pkgs/by-name/sn/snarkos/package.nix
index 757aa286401c..3e0a26dc880a 100644
--- a/pkgs/by-name/sn/snarkos/package.nix
+++ b/pkgs/by-name/sn/snarkos/package.nix
@@ -53,6 +53,8 @@ rustPlatform.buildRustPackage rec {
   # ];
 
   meta = with lib; {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     description = "Decentralized Operating System for Zero-Knowledge Applications";
     homepage = "https://snarkos.org";
     license = licenses.asl20;
diff --git a/pkgs/by-name/so/sommelier/package.nix b/pkgs/by-name/so/sommelier/package.nix
index bf7b4d1f6933..48515ad2dbec 100644
--- a/pkgs/by-name/so/sommelier/package.nix
+++ b/pkgs/by-name/so/sommelier/package.nix
@@ -57,6 +57,8 @@ stdenv.mkDerivation {
   passthru.updateScript = ./update.py;
 
   meta = with lib; {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     homepage = "https://chromium.googlesource.com/chromiumos/platform2/+/refs/heads/main/vm_tools/sommelier/";
     description = "Nested Wayland compositor with support for X11 forwarding";
     maintainers = with maintainers; [ qyliss ];
diff --git a/pkgs/development/python-modules/pathy/default.nix b/pkgs/development/python-modules/pathy/default.nix
index a8b2cace6fdb..64e4cfbb9c28 100644
--- a/pkgs/development/python-modules/pathy/default.nix
+++ b/pkgs/development/python-modules/pathy/default.nix
@@ -48,8 +48,9 @@ buildPythonPackage rec {
   pythonImportsCheck = [ "pathy" ];
 
   meta = with lib; {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     # https://github.com/justindujardin/pathy/issues/113
-    broken = pathlib-abc.version != "0.1.1";
     description = "Path interface for local and cloud bucket storage";
     mainProgram = "pathy";
     homepage = "https://github.com/justindujardin/pathy";
diff --git a/pkgs/development/python-modules/scikit-learn-extra/default.nix b/pkgs/development/python-modules/scikit-learn-extra/default.nix
index 1d7ff13472a6..3f5f9b990265 100644
--- a/pkgs/development/python-modules/scikit-learn-extra/default.nix
+++ b/pkgs/development/python-modules/scikit-learn-extra/default.nix
@@ -65,6 +65,8 @@ buildPythonPackage rec {
   ];
 
   meta = {
+    # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+    broken = true;
     description = "Set of tools for scikit-learn";
     homepage = "https://github.com/scikit-learn-contrib/scikit-learn-extra";
     license = lib.licenses.bsd3;
diff --git a/pkgs/development/tools/database/indradb/default.nix b/pkgs/development/tools/database/indradb/default.nix
index 148705d1217c..ce75d260cea3 100644
--- a/pkgs/development/tools/database/indradb/default.nix
+++ b/pkgs/development/tools/database/indradb/default.nix
@@ -15,6 +15,9 @@ let
   };
 
   meta = with lib; {
+    # Marked broken 2025-11-28 because both indradb-server and indradb-client
+    # have failed on Hydra for nearly a year.
+    broken = true;
     description = "Graph database written in rust";
     homepage = "https://github.com/indradb/indradb";
     license = licenses.mpl20;
diff --git a/pkgs/os-specific/cygwin/w32api/default.nix b/pkgs/os-specific/cygwin/w32api/default.nix
index bee269007663..c8dd0cb670c1 100644
--- a/pkgs/os-specific/cygwin/w32api/default.nix
+++ b/pkgs/os-specific/cygwin/w32api/default.nix
@@ -32,6 +32,8 @@
     };
 
     meta = {
+      # Marked broken 2025-11-28 because it has failed on Hydra for at least one year.
+      broken = true;
       description = "MinGW w32api package for Cygwin";
       inherit (windows.mingw_w64_headers.meta)
         homepage