diff --git a/pkgs/applications/emulators/dosbox-staging/default.nix b/pkgs/applications/emulators/dosbox-staging/default.nix
index f26fb7c9d76c..d66f9136bcf1 100644
--- a/pkgs/applications/emulators/dosbox-staging/default.nix
+++ b/pkgs/applications/emulators/dosbox-staging/default.nix
@@ -1,10 +1,15 @@
-{ alsa-lib
-, copyDesktopItems
+{ lib
+, stdenv
 , fetchFromGitHub
+, SDL2
+, SDL2_image
+, SDL2_net
+, alsa-lib
+, copyDesktopItems
 , fluidsynth
 , glib
 , gtest
-, lib
+, irr1
 , libGL
 , libGLU
 , libjack2
@@ -20,22 +25,17 @@
 , ninja
 , opusfile
 , pkg-config
-, irr1
-, SDL2
-, SDL2_image
-, SDL2_net
 , speexdsp
-, stdenv
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (self: {
   pname = "dosbox-staging";
   version = "0.80.1";
 
   src = fetchFromGitHub {
-    owner = pname;
-    repo = pname;
-    rev = "v${version}";
+    owner = "dosbox-staging";
+    repo = "dosbox-staging";
+    rev = "v${self.version}";
     hash = "sha256-I90poBeLSq1c8PXyjrx7/UcbfqFNnnNiXfJdWhLPGMc=";
   };
 
@@ -49,6 +49,9 @@ stdenv.mkDerivation rec {
   ];
 
   buildInputs = [
+    SDL2
+    SDL2_image
+    SDL2_net
     alsa-lib
     fluidsynth
     glib
@@ -63,9 +66,6 @@ stdenv.mkDerivation rec {
     libslirp
     libsndfile
     opusfile
-    SDL2
-    SDL2_image
-    SDL2_net
     speexdsp
   ];
 
@@ -91,17 +91,17 @@ stdenv.mkDerivation rec {
     # original dosbox. Doing it this way allows us to work with frontends and
     # launchers that expect the binary to be named dosbox, but get out of the
     # way of vanilla dosbox if the user desires to install that as well.
-    mv $out/bin/dosbox $out/bin/${pname}
+    mv $out/bin/dosbox $out/bin/${self.pname}
     makeWrapper $out/bin/dosbox-staging $out/bin/dosbox
 
     # Create a symlink to dosbox manual instead of merely copying it
     pushd $out/share/man/man1/
-    mv dosbox.1.gz ${pname}.1.gz
-    ln -s ${pname}.1.gz dosbox.1.gz
+    mv dosbox.1.gz ${self.pname}.1.gz
+    ln -s ${self.pname}.1.gz dosbox.1.gz
     popd
   '';
 
-  meta = with lib; {
+  meta = {
     homepage = "https://dosbox-staging.github.io/";
     description = "A modernized DOS emulator";
     longDescription = ''
@@ -110,10 +110,14 @@ stdenv.mkDerivation rec {
       existing DOSBox codebase while leveraging modern development tools and
       practices.
     '';
-    license = licenses.gpl2Plus;
-    maintainers = with maintainers; [ joshuafern AndersonTorres ];
-    platforms = platforms.unix;
+    changelog = "https://github.com/dosbox-staging/dosbox-staging/releases/tag/v${self.version}";
+    license = lib.licenses.gpl2Plus;
+    maintainers = [
+      lib.maintainers.joshuafern
+      lib.maintainers.AndersonTorres
+    ];
+    platforms = lib.platforms.unix;
     priority = 101;
   };
-}
-# TODO: report upstream about not finding SDL2_net
+})
+# TODO: report upstream about not finding extra SDL2 libraries
diff --git a/pkgs/development/libraries/irr1/default.nix b/pkgs/development/libraries/irr1/default.nix
index 8740919ce3ae..ba4a99b2bb80 100644
--- a/pkgs/development/libraries/irr1/default.nix
+++ b/pkgs/development/libraries/irr1/default.nix
@@ -4,25 +4,25 @@
 , cmake
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (self: {
   pname = "irr1";
   version = "1.9.4";
 
   src = fetchFromGitHub {
     owner = "berndporr";
     repo = "iir1";
-    rev = version;
+    rev = self.version;
     hash = "sha256-T8gl51IkZIGq+6D5ge4Kb3wm5aw7Rhphmnf6TTGwHbs=";
   };
 
   nativeBuildInputs = [ cmake ];
 
   meta = {
-    description = "A DSP IIR realtime filter library written in C++";
-    downloadPage = "https://github.com/berndporr/iir1";
     homepage = "http://berndporr.github.io/iir1/";
+    description = "A DSP IIR realtime filter library written in C++";
+    changelog = "https://github.com/berndporr/iir1/releases/tag/${self.version}";
     license = lib.licenses.mit;
     maintainers = [ lib.maintainers.AndersonTorres ];
     platforms = lib.platforms.unix;
   };
-}
+})