diff --git a/pkgs/development/interpreters/lua-5/interpreter.nix b/pkgs/development/interpreters/lua-5/interpreter.nix
index d4af272e7cf6..c265785b8d85 100644
--- a/pkgs/development/interpreters/lua-5/interpreter.nix
+++ b/pkgs/development/interpreters/lua-5/interpreter.nix
@@ -146,7 +146,7 @@ stdenv.mkDerivation rec {
   };
 
   meta = {
-    homepage = "http://www.lua.org";
+    homepage = "https://www.lua.org";
     description = "Powerful, fast, lightweight, embeddable scripting language";
     longDescription = ''
       Lua combines simple procedural syntax with powerful data
diff --git a/pkgs/development/interpreters/scheme48/default.nix b/pkgs/development/interpreters/scheme48/default.nix
index 883b0b2f39aa..7a4178d82b15 100644
--- a/pkgs/development/interpreters/scheme48/default.nix
+++ b/pkgs/development/interpreters/scheme48/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.9.2";
 
   src = fetchurl {
-    url = "http://s48.org/${version}/scheme48-${version}.tgz";
+    url = "https://s48.org/${version}/scheme48-${version}.tgz";
     sha256 = "1x4xfm3lyz2piqcw1h01vbs1iq89zq7wrsfjgh3fxnlm1slj2jcw";
   };
 
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage = "http://s48.org/";
+    homepage = "https://s48.org/";
     description = "Scheme 48 interpreter for R5RS";
     platforms = platforms.unix;
     license = licenses.bsd3;
diff --git a/pkgs/development/libraries/openjpeg/default.nix b/pkgs/development/libraries/openjpeg/default.nix
index 5d2ad71bada8..ad4206eedfbb 100644
--- a/pkgs/development/libraries/openjpeg/default.nix
+++ b/pkgs/development/libraries/openjpeg/default.nix
@@ -75,5 +75,6 @@ stdenv.mkDerivation rec {
     license = licenses.bsd2;
     maintainers = with maintainers; [ codyopel ];
     platforms = platforms.all;
+    changelog = "https://github.com/uclouvain/openjpeg/blob/v${version}/CHANGELOG.md";
   };
 }
diff --git a/pkgs/development/libraries/qpdf/default.nix b/pkgs/development/libraries/qpdf/default.nix
index f843949b3a06..05c1a4c0d486 100644
--- a/pkgs/development/libraries/qpdf/default.nix
+++ b/pkgs/development/libraries/qpdf/default.nix
@@ -25,10 +25,11 @@ stdenv.mkDerivation rec {
   doCheck = true;
 
   meta = with lib; {
-    homepage = "http://qpdf.sourceforge.net/";
+    homepage = "https://qpdf.sourceforge.io/";
     description = "A C++ library and set of programs that inspect and manipulate the structure of PDF files";
     license = licenses.asl20; # as of 7.0.0, people may stay at artistic2
     maintainers = with maintainers; [ abbradar ];
     platforms = platforms.all;
+    changelog = "https://github.com/qpdf/qpdf/blob/v${version}/ChangeLog";
   };
 }
diff --git a/pkgs/development/python-modules/jc/default.nix b/pkgs/development/python-modules/jc/default.nix
index 9c097335b2c3..ae39ada5c15e 100644
--- a/pkgs/development/python-modules/jc/default.nix
+++ b/pkgs/development/python-modules/jc/default.nix
@@ -34,5 +34,6 @@ buildPythonPackage rec {
     homepage = "https://github.com/kellyjonbrazil/jc";
     license = licenses.mit;
     maintainers = with maintainers; [ atemu ];
+    changelog = "https://github.com/kellyjonbrazil/jc/blob/v${version}/CHANGELOG";
   };
 }
diff --git a/pkgs/development/tools/memray/default.nix b/pkgs/development/tools/memray/default.nix
index e1d9fa8c48f6..5d37c5dc0990 100644
--- a/pkgs/development/tools/memray/default.nix
+++ b/pkgs/development/tools/memray/default.nix
@@ -66,5 +66,6 @@ python3.pkgs.buildPythonApplication rec {
     license = licenses.asl20;
     maintainers = with maintainers; [ fab ];
     platforms = platforms.linux;
+    changelog = "https://github.com/bloomberg/memray/releases/tag/v${version}";
   };
 }
diff --git a/pkgs/development/tools/zed/default.nix b/pkgs/development/tools/zed/default.nix
index 743adb561533..1eafbaab016c 100644
--- a/pkgs/development/tools/zed/default.nix
+++ b/pkgs/development/tools/zed/default.nix
@@ -23,5 +23,6 @@ buildGoModule rec {
     homepage = "https://github.com/brimdata/zed";
     license = licenses.bsd3;
     maintainers = with maintainers; [ dit7ya ];
+    changelog = "https://github.com/brimdata/zed/blob/v${version}/CHANGELOG.md";
   };
 }
diff --git a/pkgs/games/sil/default.nix b/pkgs/games/sil/default.nix
index 7d446a684aae..8455d35f7b7c 100644
--- a/pkgs/games/sil/default.nix
+++ b/pkgs/games/sil/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   version = "1.3.0";
 
   src = fetchzip {
-    url = "http://www.amirrorclear.net/flowers/game/sil/Sil-130-src.zip";
+    url = "https://www.amirrorclear.net/flowers/game/sil/Sil-130-src.zip";
     sha256 = "1amp2mr3fxascra0k76sdsvikjh8g76nqh46kka9379zd35lfq8w";
     stripRoot = false;
   };
diff --git a/pkgs/games/the-powder-toy/default.nix b/pkgs/games/the-powder-toy/default.nix
index 41fb91812539..2901f42e095e 100644
--- a/pkgs/games/the-powder-toy/default.nix
+++ b/pkgs/games/the-powder-toy/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "A free 2D physics sandbox game";
-    homepage = "http://powdertoy.co.uk/";
+    homepage = "https://powdertoy.co.uk/";
     platforms = platforms.unix;
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ abbradar siraben ];
diff --git a/pkgs/tools/admin/bubblewrap/default.nix b/pkgs/tools/admin/bubblewrap/default.nix
index 92a188b0cb61..e02162b1f548 100644
--- a/pkgs/tools/admin/bubblewrap/default.nix
+++ b/pkgs/tools/admin/bubblewrap/default.nix
@@ -50,5 +50,6 @@ stdenv.mkDerivation rec {
     license = licenses.lgpl2Plus;
     maintainers = with maintainers; [ dotlambda ];
     platforms = platforms.linux;
+    mainProgram = "bwrap";
   };
 }
diff --git a/pkgs/tools/admin/turbovnc/default.nix b/pkgs/tools/admin/turbovnc/default.nix
index af833487c822..9204d54ab129 100644
--- a/pkgs/tools/admin/turbovnc/default.nix
+++ b/pkgs/tools/admin/turbovnc/default.nix
@@ -137,5 +137,6 @@ stdenv.mkDerivation rec {
     description = "High-speed version of VNC derived from TightVNC";
     maintainers = with lib.maintainers; [ nh2 ];
     platforms = with lib.platforms; linux;
+    changelog = "https://github.com/TurboVNC/turbovnc/blob/${version}/ChangeLog.md";
   };
 }
diff --git a/pkgs/tools/filesystems/squashfs/default.nix b/pkgs/tools/filesystems/squashfs/default.nix
index 3be3865ccd07..54ed84f7a81e 100644
--- a/pkgs/tools/filesystems/squashfs/default.nix
+++ b/pkgs/tools/filesystems/squashfs/default.nix
@@ -66,5 +66,6 @@ stdenv.mkDerivation rec {
     platforms = platforms.unix;
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ ruuda ];
+    mainProgram = "mksquashfs";
   };
 }
diff --git a/pkgs/tools/graphics/zbar/default.nix b/pkgs/tools/graphics/zbar/default.nix
index b75df56e4327..d3c4003741e3 100644
--- a/pkgs/tools/graphics/zbar/default.nix
+++ b/pkgs/tools/graphics/zbar/default.nix
@@ -98,5 +98,6 @@ stdenv.mkDerivation rec {
     platforms = platforms.unix;
     license = licenses.lgpl21;
     homepage = "https://github.com/mchehab/zbar";
+    mainProgram = "zbarimg";
   };
 }
diff --git a/pkgs/tools/misc/ddcutil/default.nix b/pkgs/tools/misc/ddcutil/default.nix
index b61f396dc4df..7bf751652d4e 100644
--- a/pkgs/tools/misc/ddcutil/default.nix
+++ b/pkgs/tools/misc/ddcutil/default.nix
@@ -43,6 +43,7 @@ stdenv.mkDerivation rec {
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ rnhmjoj ];
+    changelog = "https://github.com/rockowitz/ddcutil/blob/v${version}/CHANGELOG.md";
   };
 }
 
diff --git a/pkgs/tools/misc/tldr/default.nix b/pkgs/tools/misc/tldr/default.nix
index bd521238ca8c..33e1cda1df58 100644
--- a/pkgs/tools/misc/tldr/default.nix
+++ b/pkgs/tools/misc/tldr/default.nix
@@ -28,7 +28,8 @@ stdenv.mkDerivation rec {
       tldr pages gives common use cases for commands, so you don't need to hunt
       through a man page for the correct flags.
     '';
-    homepage = "http://tldr-pages.github.io";
+    homepage = "https://tldr-pages.github.io";
+    changelog = "https://github.com/tldr-pages/tldr-c-client/blob/v${version}/CHANGELOG.md";
     license = licenses.mit;
     maintainers = with maintainers; [ taeer carlosdagos ];
     platforms = platforms.all;
diff --git a/pkgs/tools/system/nvtop/default.nix b/pkgs/tools/system/nvtop/default.nix
index 2240d72235ff..621d51a4a55c 100644
--- a/pkgs/tools/system/nvtop/default.nix
+++ b/pkgs/tools/system/nvtop/default.nix
@@ -63,5 +63,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ willibutz gbtb ];
+    mainProgram = "nvtop";
   };
 }