diff --git a/pkgs/by-name/as/asciinema_3/package.nix b/pkgs/by-name/as/asciinema_3/package.nix
index 69aa09329266..d3a841bdbf30 100644
--- a/pkgs/by-name/as/asciinema_3/package.nix
+++ b/pkgs/by-name/as/asciinema_3/package.nix
@@ -7,64 +7,61 @@
   testers,
 }:
 
-let
-  self = rustPlatform.buildRustPackage {
-    pname = "asciinema";
-    version = "3.0.1";
+rustPlatform.buildRustPackage (finalAttrs: {
+  pname = "asciinema";
+  version = "3.0.1";
 
-    src = fetchFromGitHub {
-      name = "asciinema-source-${self.version}";
-      owner = "asciinema";
-      repo = "asciinema";
-      rev = "v${self.version}";
-      hash = "sha256-jWRq/LeDdCETiOMkWr9EIWztb14IYGCSo05QPw5HZZk=";
-    };
+  src = fetchFromGitHub {
+    name = "asciinema-source-${finalAttrs.version}";
+    owner = "asciinema";
+    repo = "asciinema";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-jWRq/LeDdCETiOMkWr9EIWztb14IYGCSo05QPw5HZZk=";
+  };
 
-    cargoHash = "sha256-bGhShwH4BxE3O4/B8KSK1o7IXNDBmGuVt4kx5s8W/go=";
+  cargoHash = "sha256-bGhShwH4BxE3O4/B8KSK1o7IXNDBmGuVt4kx5s8W/go=";
 
-    env.ASCIINEMA_GEN_DIR = "gendir";
+  env.ASCIINEMA_GEN_DIR = "gendir";
 
-    nativeCheckInputs = [ python3 ];
-    nativeBuildInputs = [ installShellFiles ];
+  nativeCheckInputs = [ python3 ];
+  nativeBuildInputs = [ installShellFiles ];
 
-    postInstall = ''
-      installManPage gendir/man/*
-      installShellCompletion --cmd asciinema \
-        --bash gendir/completion/asciinema.bash \
-        --fish gendir/completion/asciinema.fish \
-        --zsh gendir/completion/_asciinema
-    '';
+  postInstall = ''
+    installManPage gendir/man/*
+    installShellCompletion --cmd asciinema \
+      --bash gendir/completion/asciinema.bash \
+      --fish gendir/completion/asciinema.fish \
+      --zsh gendir/completion/_asciinema
+  '';
 
-    strictDeps = true;
+  strictDeps = true;
 
-    passthru = {
-      tests.version = testers.testVersion {
-        package = self;
-        command = "asciinema --version";
-      };
-    };
-
-    meta = {
-      homepage = "https://asciinema.org/";
-      description = "Terminal session recorder and the best companion of asciinema.org";
-      longDescription = ''
-        asciinema is a suite of tools for recording, replaying, and sharing
-        terminal sessions. It is free and open-source software (FOSS), created
-        by Marcin Kulik.
-
-        Its typical use cases include creating tutorials, demonstrating
-        command-line tools, and sharing reproducible bug reports. It focuses on
-        simplicity and interoperability, which makes it a popular choice among
-        computer users working with the command-line, such as developers or
-        system administrators.
-      '';
-      license = with lib.licenses; [ gpl3Plus ];
-      mainProgram = "asciinema";
-      maintainers = with lib.maintainers; [
-        jiriks74
-        llakala
-      ];
+  passthru = {
+    tests.version = testers.testVersion {
+      package = finalAttrs.finalPackage;
+      command = "asciinema --version";
     };
   };
-in
-self
+
+  meta = {
+    homepage = "https://asciinema.org/";
+    description = "Terminal session recorder and the best companion of asciinema.org";
+    longDescription = ''
+      asciinema is a suite of tools for recording, replaying, and sharing
+      terminal sessions. It is free and open-source software (FOSS), created
+      by Marcin Kulik.
+
+      Its typical use cases include creating tutorials, demonstrating
+      command-line tools, and sharing reproducible bug reports. It focuses on
+      simplicity and interoperability, which makes it a popular choice among
+      computer users working with the command-line, such as developers or
+      system administrators.
+    '';
+    license = with lib.licenses; [ gpl3Plus ];
+    mainProgram = "asciinema";
+    maintainers = with lib.maintainers; [
+      jiriks74
+      llakala
+    ];
+  };
+})