Running nixpkgs-update (https://github.com/NixOS/infra/blob/main/non-critical-infra/modules/nixpkgs-update/README.md) with UPDATE_INFO: blackmagic-desktop-video 0 -> 1
attrpath: blackmagic-desktop-video
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] these 2 derivations will be built:
  /nix/store/7l48vrh4yyxywnvhxb13k4nhfb6zp8ia-update-blackmagic-desktop-video.drv
  /nix/store/yyvaa9xcngz95mn5fyp7a6i680bk1yd2-packages.json.drv
building '/nix/store/7l48vrh4yyxywnvhxb13k4nhfb6zp8ia-update-blackmagic-desktop-video.drv'...
structuredAttrs is enabled
building '/nix/store/yyvaa9xcngz95mn5fyp7a6i680bk1yd2-packages.json.drv'...
structuredAttrs is enabled

Going to be running update for following packages:
 - blackmagic-desktop-video-16.3

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - blackmagic-desktop-video-16.3: UPDATING ...
 - blackmagic-desktop-video-16.3: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/bl/blackmagic-desktop-video/package.nix b/pkgs/by-name/bl/blackmagic-desktop-video/package.nix
index f9681707d819..9f02b7b4ea8b 100644
--- a/pkgs/by-name/bl/blackmagic-desktop-video/package.nix
+++ b/pkgs/by-name/bl/blackmagic-desktop-video/package.nix
@@ -14,7 +14,7 @@
 }:
 stdenv.mkDerivation (finalAttrs: {
   pname = "blackmagic-desktop-video";
-  version = "16.3";
+  version = "16.5";
 
   buildInputs = [
     autoPatchelfHook
@@ -30,7 +30,7 @@ stdenv.mkDerivation (finalAttrs: {
       {
         outputHashMode = "recursive";
         outputHashAlgo = "sha256";
-        outputHash = "sha256-GKIDNLJq5SOwfTT/wjmW2h42bzk6f0eB4AgqSnpmH74=";
+        outputHash = "sha256-zATY6vhOmZNXI4bCAiOkCOU+Uda081H1NA/t9k6Rlhw=";
 
         impureEnvVars = lib.fetchers.proxyImpureEnvVars;
 

No auto update branch exists
There might already be an open PR for this update:
- blackmagic-desktop-video,linuxPackages.decklink: 16.3 -> 16.5, unbreak
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/581261"