diff --git a/doc/release-notes/rl-2511.section.md b/doc/release-notes/rl-2511.section.md
index e67729917c77..68f68cb4e64f 100644
--- a/doc/release-notes/rl-2511.section.md
+++ b/doc/release-notes/rl-2511.section.md
@@ -26,6 +26,8 @@
 
 - `mx-puppet-discord` was removed from nixpkgs along with its NixOS module as it was unmaintained and was the only user of sha1 hashes in tree.
 
+- `conduwuit` was removed due to upstream ceasing development and deleting their repository. For existing data, a migration to `matrix-conduit`, `matrix-continuwuity` or `matrix-tuwunel` may be possible.
+
 - `gnome-keyring` no longer ships with an SSH agent anymore because it has been deprecated upstream. You should use `gcr_4` instead, which provides the same features. More information on why this was done can be found on [the relevant GCR upstream PR](https://gitlab.gnome.org/GNOME/gcr/-/merge_requests/67).
 
 - `stdenv.mkDerivation` and other derivation builders that use it no longer allow the value of `env` to be anything but an attribute set, for the purpose of setting environment variables that are available to the [builder](https://nix.dev/manual/nix/latest/store/derivation/#builder) process. An environment variable called `env` can still be provided by means of `mkDerivation { env.env = ...; }`, though we recommend to use a more specific name than "env".
diff --git a/pkgs/by-name/co/conduwuit/package.nix b/pkgs/by-name/co/conduwuit/package.nix
deleted file mode 100644
index e3661b94e53e..000000000000
--- a/pkgs/by-name/co/conduwuit/package.nix
+++ /dev/null
@@ -1,100 +0,0 @@
-{
-  lib,
-  rustPlatform,
-  fetchFromGitHub,
-  pkg-config,
-  bzip2,
-  zstd,
-  stdenv,
-  rocksdb,
-  nix-update-script,
-  testers,
-  conduwuit,
-  # upstream conduwuit enables jemalloc by default, so we follow suit
-  enableJemalloc ? true,
-  rust-jemalloc-sys,
-  enableLiburing ? stdenv.hostPlatform.isLinux,
-  liburing,
-}:
-let
-  rust-jemalloc-sys' = rust-jemalloc-sys.override {
-    unprefixed = !stdenv.hostPlatform.isDarwin;
-  };
-  rocksdb' = rocksdb.override {
-    inherit enableLiburing;
-    # rocksdb does not support prefixed jemalloc, which is required on darwin
-    enableJemalloc = enableJemalloc && !stdenv.hostPlatform.isDarwin;
-    jemalloc = rust-jemalloc-sys';
-  };
-in
-rustPlatform.buildRustPackage rec {
-  pname = "conduwuit";
-  version = "0.4.6";
-
-  src = fetchFromGitHub {
-    owner = "girlbossceo";
-    repo = "conduwuit";
-    rev = "v${version}";
-    hash = "sha256-ut3IWEueNR/hT7NyGfuK5IYtppC6ArSoJdEfFuD/0vE=";
-  };
-
-  cargoHash = "sha256-L0UvJ5ZyEk/hZobkB21u6cfPCeRwhDl+07aWcQEOgYw=";
-
-  nativeBuildInputs = [
-    pkg-config
-    rustPlatform.bindgenHook
-  ];
-
-  buildInputs = [
-    bzip2
-    zstd
-  ]
-  ++ lib.optional enableJemalloc rust-jemalloc-sys'
-  ++ lib.optional enableLiburing liburing;
-
-  env = {
-    ZSTD_SYS_USE_PKG_CONFIG = true;
-    ROCKSDB_INCLUDE_DIR = "${rocksdb'}/include";
-    ROCKSDB_LIB_DIR = "${rocksdb'}/lib";
-  };
-
-  buildNoDefaultFeatures = true;
-  # See https://github.com/girlbossceo/conduwuit/blob/main/src/main/Cargo.toml
-  # for available features.
-  # We enable all default features except jemalloc and io_uring, which
-  # we guard behind our own (default-enabled) flags.
-  buildFeatures = [
-    "brotli_compression"
-    "element_hacks"
-    "gzip_compression"
-    "release_max_log_level"
-    "sentry_telemetry"
-    "systemd"
-    "zstd_compression"
-  ]
-  ++ lib.optional enableJemalloc "jemalloc"
-  ++ lib.optional enableLiburing "io_uring";
-
-  passthru = {
-    updateScript = nix-update-script { };
-    tests = {
-      version = testers.testVersion {
-        inherit version;
-        package = conduwuit;
-      };
-    };
-  };
-
-  meta = {
-    description = "Matrix homeserver written in Rust, forked from conduit";
-    homepage = "https://conduwuit.puppyirl.gay/";
-    changelog = "https://github.com/girlbossceo/conduwuit/releases/tag/v${version}";
-    license = lib.licenses.asl20;
-    knownVulnerabilities = [
-      "On April 11, 2025, the conduwuit project officially ceased development"
-    ];
-    maintainers = with lib.maintainers; [ niklaskorz ];
-    # Not a typo, conduwuit is a drop-in replacement for conduit.
-    mainProgram = "conduit";
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 2bcd0d4e169d..003462e80623 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -487,6 +487,7 @@ mapAliases {
   codimd = throw "'codimd' has been renamed to/replaced by 'hedgedoc'"; # Converted to throw 2024-10-17
   inherit (libsForQt5.mauiPackages) communicator; # added 2022-05-17
   concurrencykit = throw "'concurrencykit' has been renamed to/replaced by 'libck'"; # Converted to throw 2024-10-17
+  conduwuit = throw "'conduwuit' has been removed as the upstream repository has been deleted. Consider migrating to 'matrix-conduit', 'matrix-continuwuity' or 'matrix-tuwunel' instead."; # Added 2025-08-08
   containerpilot = throw "'containerpilot' has been removed from nixpkgs, as it was broken and unmaintained"; # Added 2024-06-09
   crack_attack = throw "'crack_attack' has been removed due to lack of maintenance upstream."; # Added 2024-12-04
   crackmapexec = throw "'crackmapexec' has been removed as it was unmaintained. Use 'netexec' instead"; # 2024-08-11