diff --git a/pkgs/tools/package-management/nix/default.nix b/pkgs/tools/package-management/nix/default.nix
index 1588f248d38b..3aa9c6a531d7 100644
--- a/pkgs/tools/package-management/nix/default.nix
+++ b/pkgs/tools/package-management/nix/default.nix
@@ -189,14 +189,14 @@ lib.makeExtensible (
       };
 
       nixComponents_git = nixDependencies.callPackage ./modular/packages.nix rec {
-        version = "2.29pre20250407_${lib.substring 0 8 src.rev}";
+        version = "2.29pre20250409_${lib.substring 0 8 src.rev}";
         inherit (self.nix_2_24.meta) maintainers;
         otherSplices = generateSplicesForNixComponents "nixComponents_git";
         src = fetchFromGitHub {
           owner = "NixOS";
           repo = "nix";
-          rev = "73d3159ba0b4b711c1f124a587f16e2486d685d7";
-          hash = "sha256-9wJXUGqXIqMjNyKWJKCcxrDHM/KxDkvJMwo6S3s+WuM=";
+          rev = "e76bbe413e86e3208bb9824e339d59af25327101";
+          hash = "sha256-Aqnj5+sA7B4ZRympuyfWPPK83iomKHEHMYhlwslI8iA=";
         };
       };
 
diff --git a/pkgs/tools/package-management/nix/modular/packaging/components.nix b/pkgs/tools/package-management/nix/modular/packaging/components.nix
index 7e9dbb05a1fb..134f7f62178b 100644
--- a/pkgs/tools/package-management/nix/modular/packaging/components.nix
+++ b/pkgs/tools/package-management/nix/modular/packaging/components.nix
@@ -201,6 +201,8 @@ let
       }
     );
 
+  whenAtLeast = v: thing: if lib.versionAtLeast version v then thing else null;
+
 in
 
 # This becomes the pkgs.nixComponents attribute set
@@ -336,6 +338,7 @@ in
   nix-store-tests = callPackage ../src/libstore-tests/package.nix { };
 
   nix-fetchers = callPackage ../src/libfetchers/package.nix { };
+  ${whenAtLeast "2.29pre" "nix-fetchers-c"} = callPackage ../src/libfetchers-c/package.nix { };
   nix-fetchers-tests = callPackage ../src/libfetchers-tests/package.nix { };
 
   nix-expr = callPackage ../src/libexpr/package.nix { };
diff --git a/pkgs/tools/package-management/nix/modular/packaging/everything.nix b/pkgs/tools/package-management/nix/modular/packaging/everything.nix
index 1835eefb643b..f8605b923689 100644
--- a/pkgs/tools/package-management/nix/modular/packaging/everything.nix
+++ b/pkgs/tools/package-management/nix/modular/packaging/everything.nix
@@ -6,6 +6,8 @@
 
   maintainers,
 
+  version,
+
   nix-util,
   nix-util-c,
   nix-util-tests,
@@ -15,6 +17,7 @@
   nix-store-tests,
 
   nix-fetchers,
+  nix-fetchers-c,
   nix-fetchers-tests,
 
   nix-expr,
@@ -63,14 +66,20 @@ let
         nix-cmd
         ;
     }
-    // lib.optionalAttrs
-      (!stdenv.hostPlatform.isStatic && stdenv.buildPlatform.canExecute stdenv.hostPlatform)
-      {
-        # Currently fails in static build
-        inherit
-          nix-perl-bindings
-          ;
-      };
+    // lib.optionalAttrs (lib.versionAtLeast version "2.29pre") {
+      inherit
+        nix-fetchers-c
+        ;
+    }
+    //
+      lib.optionalAttrs
+        (!stdenv.hostPlatform.isStatic && stdenv.buildPlatform.canExecute stdenv.hostPlatform)
+        {
+          # Currently fails in static build
+          inherit
+            nix-perl-bindings
+            ;
+        };
 
   devdoc = buildEnv {
     name = "nix-${nix-cli.version}-devdoc";
@@ -225,20 +234,26 @@ stdenv.mkDerivation (finalAttrs: {
       "out"
       "man"
     ];
-    pkgConfigModules = [
-      "nix-cmd"
-      "nix-expr"
-      "nix-expr-c"
-      "nix-fetchers"
-      "nix-flake"
-      "nix-flake-c"
-      "nix-main"
-      "nix-main-c"
-      "nix-store"
-      "nix-store-c"
-      "nix-util"
-      "nix-util-c"
-    ];
+    pkgConfigModules =
+      [
+        "nix-cmd"
+        "nix-expr"
+        "nix-expr-c"
+        "nix-fetchers"
+      ]
+      ++ lib.optionals (lib.versionAtLeast version "2.29pre") [
+        "nix-fetchers-c"
+      ]
+      ++ [
+        "nix-flake"
+        "nix-flake-c"
+        "nix-main"
+        "nix-main-c"
+        "nix-store"
+        "nix-store-c"
+        "nix-util"
+        "nix-util-c"
+      ];
   };
 
 })
diff --git a/pkgs/tools/package-management/nix/modular/src/libfetchers-c/package.nix b/pkgs/tools/package-management/nix/modular/src/libfetchers-c/package.nix
new file mode 100644
index 000000000000..9da68f9e4814
--- /dev/null
+++ b/pkgs/tools/package-management/nix/modular/src/libfetchers-c/package.nix
@@ -0,0 +1,34 @@
+{
+  lib,
+  mkMesonLibrary,
+
+  nix-store-c,
+  nix-expr-c,
+  nix-util-c,
+  nix-fetchers,
+
+  # Configuration Options
+
+  version,
+}:
+
+mkMesonLibrary (finalAttrs: {
+  pname = "nix-fetchers-c";
+  inherit version;
+
+  workDir = ./.;
+
+  propagatedBuildInputs = [
+    nix-util-c
+    nix-expr-c
+    nix-store-c
+    nix-fetchers
+  ];
+
+  mesonFlags = [ ];
+
+  meta = {
+    platforms = lib.platforms.unix ++ lib.platforms.windows;
+  };
+
+})
diff --git a/pkgs/tools/package-management/nix/modular/src/libfetchers-tests/package.nix b/pkgs/tools/package-management/nix/modular/src/libfetchers-tests/package.nix
index 62b86697800a..54766cc52010 100644
--- a/pkgs/tools/package-management/nix/modular/src/libfetchers-tests/package.nix
+++ b/pkgs/tools/package-management/nix/modular/src/libfetchers-tests/package.nix
@@ -5,6 +5,7 @@
   mkMesonExecutable,
 
   nix-fetchers,
+  nix-fetchers-c,
   nix-store-test-support,
 
   libgit2,
@@ -31,6 +32,9 @@ mkMesonExecutable (finalAttrs: {
       rapidcheck
       gtest
     ]
+    ++ lib.optionals (lib.versionAtLeast version "2.29pre") [
+      nix-fetchers-c
+    ]
     ++ lib.optionals (lib.versionAtLeast version "2.27") [
       libgit2
     ];
diff --git a/pkgs/tools/package-management/nix/modular/src/libflake-c/package.nix b/pkgs/tools/package-management/nix/modular/src/libflake-c/package.nix
index 3ee6c6b4f8a6..e2d54f827ef8 100644
--- a/pkgs/tools/package-management/nix/modular/src/libflake-c/package.nix
+++ b/pkgs/tools/package-management/nix/modular/src/libflake-c/package.nix
@@ -4,6 +4,7 @@
 
   nix-store-c,
   nix-expr-c,
+  nix-fetchers-c,
   nix-flake,
 
   # Configuration Options
@@ -17,11 +18,17 @@ mkMesonLibrary (finalAttrs: {
 
   workDir = ./.;
 
-  propagatedBuildInputs = [
-    nix-expr-c
-    nix-store-c
-    nix-flake
-  ];
+  propagatedBuildInputs =
+    [
+      nix-expr-c
+      nix-store-c
+    ]
+    ++ lib.optionals (lib.versionAtLeast version "2.29pre") [
+      nix-fetchers-c
+    ]
+    ++ [
+      nix-flake
+    ];
 
   mesonFlags = [
   ];