diff --git a/pkgs/development/php-packages/box/default.nix b/pkgs/development/php-packages/box/default.nix
index 043e52ae46e1..b1e447a4a7c7 100644
--- a/pkgs/development/php-packages/box/default.nix
+++ b/pkgs/development/php-packages/box/default.nix
@@ -1,35 +1,24 @@
-{ mkDerivation, fetchurl, makeWrapper, lib, php }:
+{ lib, php, fetchFromGitHub }:
 
-let
+php.buildComposerProject (finalAttrs: {
   pname = "box";
   version = "4.3.8";
-in
-mkDerivation {
-  inherit pname version;
 
-  src = fetchurl {
-    url = "https://github.com/box-project/box/releases/download/${version}/box.phar";
-    sha256 = "sha256-g9Y92yTsyXU4NWuQwyB3PRrKJxLRSBO9J77jumXPOxg=";
+  src = fetchFromGitHub {
+    owner = "box-project";
+    repo = "box";
+    rev = finalAttrs.version;
+    hash = "sha256-v1J84nqaX36DrLLH5kld+8NIymqtt5/5nJWJNCBVFRE=";
   };
 
-  dontUnpack = true;
+  vendorHash = "sha256-LWggAUBMKljxa7HNdJMqOD/sx3IWCOQSqbYEnGntjN0=";
 
-  nativeBuildInputs = [ makeWrapper ];
-
-  installPhase = ''
-    runHook preInstall
-    mkdir -p $out/bin
-    install -D $src $out/libexec/box/box.phar
-    makeWrapper ${php}/bin/php $out/bin/box \
-      --add-flags "-d phar.readonly=0 $out/libexec/box/box.phar"
-    runHook postInstall
-  '';
-
-  meta = with lib; {
-    changelog = "https://github.com/box-project/box/releases/tag/${version}";
+  meta = {
+    changelog = "https://github.com/box-project/box/releases/tag/${finalAttrs.version}";
     description = "An application for building and managing Phars";
-    license = licenses.mit;
+    license = lib.licenses.mit;
     homepage = "https://github.com/box-project/box";
-    maintainers = with maintainers; [ ] ++ teams.php.members;
+    maintainers = lib.teams.php.members;
+    mainProgram = "box";
   };
-}
+})
diff --git a/pkgs/development/php-packages/castor/default.nix b/pkgs/development/php-packages/castor/default.nix
index ed6ce2ba33f4..b2bf7da5c2c7 100644
--- a/pkgs/development/php-packages/castor/default.nix
+++ b/pkgs/development/php-packages/castor/default.nix
@@ -1,60 +1,50 @@
 { lib
-, stdenv
-, fetchurl
-, makeBinaryWrapper
+, fetchFromGitHub
 , installShellFiles
 , php
 , nix-update-script
 , testers
-, castor
 }:
 
-stdenv.mkDerivation (finalAttrs: {
+php.buildComposerProject (finalAttrs: {
   pname = "castor";
   version = "0.8.0";
 
-
-  src = fetchurl {
-    url = "https://github.com/jolicode/castor/releases/download/v${finalAttrs.version}/castor.linux-amd64.phar";
-    hash = "sha256-0lnn4mS1/DgUoRoMFvCjwQ0j9CX9XWlskbtX9roFCfc=";
+  src = fetchFromGitHub {
+    owner = "jolicode";
+    repo = "castor";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-rJz4BY74BI8gyT4ZlABc4PA+SCsd8guM0m2MTej350g=";
   };
 
-  dontUnpack = true;
+  vendorHash = "sha256-Jh4mNNYEM9sy0Dp+dZtD+xrMICjAuspe9D9BDXcfUPM=";
 
-  nativeBuildInputs = [ makeBinaryWrapper installShellFiles ];
+  nativeBuildInputs = [ installShellFiles ];
 
-  installPhase = ''
-    runHook preInstall
-    mkdir -p $out/bin
-    install -D $src $out/libexec/castor/castor.phar
-    makeWrapper ${php}/bin/php $out/bin/castor \
-      --add-flags "$out/libexec/castor/castor.phar"
-    runHook postInstall
-  '';
-
-  # castor requires to be initialized to generate completion files
+  # install shell completions
   postInstall = ''
-    echo "yes" | ${php}/bin/php $src
+    echo "yes" | ${php}/bin/php $out/share/php/castor/bin/castor
     installShellCompletion --cmd castor \
-      --bash <($out/bin/castor completion bash) \
-      --fish <($out/bin/castor completion fish) \
-      --zsh <($out/bin/castor completion zsh)
+      --bash <(${php}/bin/php $out/share/php/castor/bin/castor completion bash) \
+      --fish <(${php}/bin/php $out/share/php/castor/bin/castor completion fish) \
+      --zsh <(${php}/bin/php $out/share/php/castor/bin/castor completion zsh)
   '';
 
   passthru = {
     updateScript = nix-update-script { };
     tests.version = testers.testVersion {
-      inherit (finalAttrs) version;
-      package = castor;
       command = "castor --version";
+      package = php.packages.castor;
+      version = "v${finalAttrs.version}";
     };
   };
 
-  meta = with lib; {
+  meta = {
+    changelog = "https://github.com/jolicode/castor/blob/v${finalAttrs.version}/CHANGELOG.md";
     description = "DX oriented task runner and command launcher built with PHP";
     homepage = "https://github.com/jolicode/castor";
-    changelog = "https://github.com/jolicode/castor/blob/v${finalAttrs.version}/CHANGELOG.md";
-    license = licenses.mit;
-    maintainers = with maintainers; [ gaelreyrol ];
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ gaelreyrol ];
+    mainProgram = "castor";
   };
 })