diff --git a/pkgs/os-specific/redox-os/default.nix b/pkgs/os-specific/redox-os/default.nix
new file mode 100644
index 0000000000000..be7353dedba4d
--- /dev/null
+++ b/pkgs/os-specific/redox-os/default.nix
@@ -0,0 +1,19 @@
+{
+  makeScopeWithSplicing',
+  generateSplicesForMkScope,
+}:
+
+let
+  otherSplices = generateSplicesForMkScope "redox-os";
+in
+makeScopeWithSplicing' {
+  inherit otherSplices;
+  f =
+    self:
+    let
+      callPackage = self.callPackage;
+    in
+    {
+      libc = callPackage ./relibc { };
+    };
+}
diff --git a/pkgs/os-specific/redox-os/relibc/default.nix b/pkgs/os-specific/redox-os/relibc/default.nix
new file mode 100644
index 0000000000000..2858e12e06386
--- /dev/null
+++ b/pkgs/os-specific/redox-os/relibc/default.nix
@@ -0,0 +1,69 @@
+{
+  lib,
+  rustPlatform,
+  rust-cbindgen,
+  expect,
+  stdenv,
+  fetchFromGitLab,
+}:
+rustPlatform.buildRustPackage {
+  pname = "relibc";
+  version = "0.2.5";
+
+  src = fetchFromGitLab {
+    owner = "redox-os";
+    repo = "relibc";
+    rev = "0e506e97af6a834386cc424f0cb500866a3d658d";
+    hash = "sha256-1+1c0RrjtQqaY1Fy/5MgM5tYvd4Sbj+vxJvdhDzi95Q=";
+    fetchSubmodules = true;
+    domain = "gitlab.redox-os.org";
+  };
+
+  cargoHash = "sha256-2NdfPp4ndfE3y+CQ6eTG/gy7HrSDC6QW2C1BiP8uDFI=";
+
+  RUSTC_BOOTSTRAP = 1;
+  TARGET = stdenv.hostPlatform.rust.rustcTargetSpec;
+
+  # error: Usage of `RUSTC_WORKSPACE_WRAPPER` requires `-Z unstable-options`
+  auditable = false;
+
+  doCheck = false;
+  patchPhase = ''
+    runHook prePatch
+
+    patchShebangs --build renamesyms.sh stripcore.sh
+
+    runHook postPatch
+  '';
+
+  buildPhase = ''
+    runHook preBuild
+
+    make CC=gcc AR=ar LD=ld NM=nm CARGO_COMMON_FLAGS="" all
+
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out
+    DESTDIR=$out make CC=gcc AR=ar LD=ld NM=nm install
+
+    runHook postInstall
+  '';
+
+  nativeBuildInputs = [
+    rust-cbindgen
+    expect
+  ];
+
+  meta = {
+    homepage = "https://gitlab.redox-os.org/redox-os/relibc";
+    description = "C Library in Rust for Redox and Linux";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.eveeifyeve ];
+    platforms = lib.platforms.redox ++ lib.platforms.linux;
+    teams = [ lib.teams.redox ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a1acb30f79cd0..159b3f00e1312 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7025,7 +7025,7 @@ with pkgs;
     else if libc == "wasilibc" then
       wasilibc
     else if libc == "relibc" then
-      relibc
+      redox.libc
     else if libc == "llvm" then
       llvmPackages_20.libc
     else
@@ -9845,6 +9845,8 @@ with pkgs;
   raspberrypifw = callPackage ../os-specific/linux/firmware/raspberrypi { };
   raspberrypi-armstubs = callPackage ../os-specific/linux/firmware/raspberrypi/armstubs.nix { };
 
+  redox = recurseIntoAttrs (callPackages ../os-specific/redox-os { });
+
   rfkill_udev = callPackage ../os-specific/linux/rfkill/udev.nix { };
 
   sgx-sdk = callPackage ../os-specific/linux/sgx/sdk { };