diff --git a/pkgs/by-name/op/opus/package.nix b/pkgs/by-name/op/opus/package.nix
new file mode 100644
index 000000000000..fdfe0cf2640a
--- /dev/null
+++ b/pkgs/by-name/op/opus/package.nix
@@ -0,0 +1,40 @@
+{
+  lib,
+  stdenv,
+  cmake,
+  fetchFromGitHub,
+  meson,
+  ninja,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "opus";
+  version = "1.5.2";
+
+  src = fetchFromGitHub {
+    owner = "xiph";
+    repo = "opus";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-M1G7ypcfs7nJmXgkyoG96jT/CkgN5BOzy+DGO4LVCvA=";
+  };
+
+  __structuredAttrs = true;
+
+  strictDeps = true;
+
+  nativeBuildInputs = [
+    cmake
+    meson
+    ninja
+  ];
+
+  meta = {
+    description = "Modern audio compression for the internet";
+    homepage = "https://github.com/xiph/opus";
+    changelog = "https://github.com/xiph/opus/blob/${finalAttrs.src.rev}/NEWS";
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ fab ];
+    mainProgram = "opus";
+    platforms = lib.platforms.all;
+  };
+})
diff --git a/pkgs/by-name/se/sendspin-go/package.nix b/pkgs/by-name/se/sendspin-go/package.nix
new file mode 100644
index 000000000000..2f0ef02fbb91
--- /dev/null
+++ b/pkgs/by-name/se/sendspin-go/package.nix
@@ -0,0 +1,56 @@
+{
+  lib,
+  alsa-lib,
+  buildGoModule,
+  fetchFromGitHub,
+  ffmpeg,
+  libogg,
+  opus,
+  opusfile,
+  pkg-config,
+}:
+
+buildGoModule (finalAttrs: {
+  pname = "sendspin-go";
+  version = "1.1.0";
+
+  src = fetchFromGitHub {
+    owner = "Sendspin";
+    repo = "sendspin-go";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-37qTAjEgA6m9aYSt47z2jhnJwvI2Gk86bdPX+5m8hLw=";
+  };
+
+  __structuredAttrs = true;
+
+  vendorHash = "sha256-l1fHIkyZ513wroyB4Lsn76r+WzijG2ahKVid5ujkTyA=";
+
+  nativeBuildInputs = [ pkg-config ];
+
+  buildInputs = [
+    alsa-lib
+    libogg
+    opus
+    opusfile
+    ffmpeg
+  ];
+
+  env.CGO_LDFLAGS = "-lm";
+
+  ldflags = [ "-s" ];
+
+  preCheck = ''
+    # Tests require network features that are not available in the sandbox
+    substituteInPlace pkg/discovery/mdns_test.go \
+      --replace-fail "TestGetLocalIPs" "Skip_TestGetLocalIPs"
+  '';
+
+  meta = {
+    description = "Sendspin server and client";
+    homepage = "https://github.com/Sendspin/sendspin-go";
+    changelog = "https://github.com/Sendspin/sendspin-go/blob/${finalAttrs.src.rev}/CHANGELOG.md";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ fab ];
+    mainProgram = "sendspin-go";
+  };
+})