Merge branch 'main' into wip/pkgs/ultimatepp

lock.nix

@@ -4,19 +4,19 @@
     sha256 = "sha256-DlvJv33ml5UTKgu4b0HauOfFIoDx6QXtbqUF3vWeRCY=";
   };
   nixpkgs = {
-    revision = "36ab78dab7da2e4e27911007033713bab534187b";
+    revision = "55d1f923c480dadce40f5231feb472e81b0bab48";
-    sha256 = "sha256-urV51uWH7fVnhIvsZIELIYalMYsyr2FCalvlRTzqWRw=";
+    sha256 = "sha256-y2ZtlIlNTuVJUZCqzZAhIw5rrKP4DOSklev6c8PyCkQ=";
   };
   nixpkgs-unstable = {
-    revision = "9e83b64f727c88a7711a2c463a7b16eedb69a84c";
+    revision = "2795c506fe8fb7b03c36ccb51f75b6df0ab2553f";
-    sha256 = "sha256-v263g4GbxXv87hMXMCpjkIxd/viIF7p3JpJrwgKdNiI=";
+    sha256 = "sha256-W7lqHp0qZiENCDwUZ5EX/lNhxjMdNapFnbErcbnP11Q=";
   };
   nix-bitcoin = {
-    revision = "ac1344fb6d91e2af219803eaaa67d1d974666156";
+    revision = "e7e6353b3a72205b037be53eda2e71e24e46b45e";
-    sha256 = "sha256-qLwBEXlGY2pLNPhPNpeOE0DNC1luovTYE3ZDPMyMPXc=";
+    sha256 = "sha256-Y53kyw7CQUEUiKPVQQzCMB4OIiZtOoFNurJhhM6Xvx4=";
   };
   cosmic-modules = {
-    revision = "ef3b52e04d4294aa98fdac6c065b2d818022efd1";
+    revision = "e3bea95daa167bf84a4bf3387ef6f01f081152b6";
-    sha256 = "sha256-zuONfwNObFx8A2zunwwkW2jUgO6rvd6dO2okiiCxPO8=";
+    sha256 = "sha256-QhmqgiAGqR7VYxyNsdpR2qfejRnviyf7ElZ8v8MtwwY=";
   };
 }

nixos/modules/core-desktop.nix

@@ -27,7 +27,12 @@
       kdePackages.kdeconnect-kde
       pcmanfm
       pwvucontrol
-      qimgv
+      (qimgv.override {
+        opencv4 = opencv4.override {
+          # https://github.com/NixOS/nixpkgs/issues/383175
+          enableCuda = false;
+        };
+      })
     ];
 
     programs.mpv = let

nixos/modules/nvidia.nix

@@ -24,18 +24,12 @@
       nvidiaSettings = true;
       package = let
         mkDriverArgs = {
-          version = "575.64";
+          version = "575.51.02";
-          sha256_64bit = "sha256-6wG8/nOwbH0ktgg8J+ZBT2l5VC8G5lYBQhtkzMCtaLE=";
+          sha256_64bit = "sha256-XZ0N8ISmoAC8p28DrGHk/YN1rJsInJ2dZNL8O+Tuaa0=";
-          sha256_aarch64 = "sha256-uHj8fB1sSJfX0NWZEE1eZN1LQQkf7J0jPV3EeQCSG10=";
+          sha256_aarch64 = "sha256-NNeQU9sPfH1sq3d5RUq1MWT6+7mTo1SpVfzabYSVMVI=";
-          openSha256 = "sha256-y93FdR5TZuurDlxc/p5D5+a7OH93qU4hwQqMXorcs/g=";
+          openSha256 = "sha256-NQg+QDm9Gt+5bapbUO96UFsPnz1hG1dtEwT/g/vKHkw=";
-          settingsSha256 = "sha256-3BvryH7p0ioweNN4S8oLDCTSS47fQPWVYwNq4AuWQgQ=";
+          settingsSha256 = "sha256-6n9mVkEL39wJj5FB1HBml7TTJhNAhS/j5hqpNGFQE4w=";
-          persistencedSha256 = "sha256-QkDNQKwCsakZOLcSie1NBiFCM5e5NFGiIKtPSFeWdXs=";
+          persistencedSha256 = "sha256-dgmco+clEIY8bedxHC4wp+fH5JavTzyI1BI8BxoeJJI=";
-          patches = [
-            (pkgs.fetchpatch {
-              url = "https://raw.githubusercontent.com/rpmfusion/nvidia-kmod/020f5fabfb067150f8dd0d6e470a7a694f59eb59/Workaround-nv_vm_flags_-calling-GPL-only-code.patch";
-              hash = "sha256-2WQs8WDVzNivwUSWn7t2hoduUVvmem5e+JpGt04380c=";
-            })
-          ];
         };
       in ( config.boot.kernelPackages.nvidiaPackages.mkDriver mkDriverArgs ).overrideAttrs (super: {
         passthru = super.passthru or {} // {

nixos/modules/razer.nix

@@ -15,14 +15,14 @@
       # NIXPKGS-PR: 384992
       packages = let
         oldVersion = pkgs.python3Packages.openrazer-daemon.version;
-        version = "3.10.3";
+        version = "3.10.1";
       in lib.mapAttrs (_: package: package.overrideAttrs (oldAttrs: {
         version = lib.replaceStrings [ oldVersion ] [ version ] oldAttrs.version;
         src = pkgs.fetchFromGitHub {
           owner = "openrazer";
           repo = "openrazer";
           tag = "v${version}";
-          hash = "sha256-M5g3Rn9WuyudhWQfDooopjexEgGVB0rzfJsPg+dqwn4=";
+          hash = "sha256-igrGx7Y6ENtZatJCTAW43/0q6ZjljJ9/kU3QFli4yIU=";
         };
       })) {
         kernel = config.boot.kernelPackages.openrazer;

nixos/modules/shell.nix

@@ -15,17 +15,7 @@ in
       aliasDrag
       ranger-git
       ripgrep
-      (kitty.overrideAttrs (superAttrs: {
+      kitty
-        patches = superAttrs.patches or [] ++ [
-          (fetchpatch {
-            url = "https://github.com/AmirulAndalib/kitty/commit/61fd8c4003b361503160424cbed1960153f40290.patch";
-            excludes = lib.map lib.escapeRegex [
-              "docs/changelog.rst"
-            ];
-            hash = "sha256-TqO/pLRkxN+Mz4nfNfTntGpPoy6OgbtAGmdohG/1BFs=";
-          })
-        ];
-      }))
       zoxide
     ]) ++ [
       (
@@ -39,19 +29,15 @@ in
       HISTCONTROL=ignoreboth
     '';
 
-    programs.bash.interactiveShellInit = lib.mkMerge [
+    programs.bash.interactiveShellInit = ''
-      ''
       HISTCONTROL=ignoreboth
       if test -n "$KITTY_INSTALLATION_DIR"; then
         export KITTY_SHELL_INTEGRATION="enabled,no-sudo"
         source "$KITTY_INSTALLATION_DIR/shell-integration/bash/kitty.bash"
       fi
+      eval "''$(zoxide init bash)"
       alias bye=exit
-      ''
+    '';
-      (lib.mkAfter ''
-        eval "''$(${lib.getExe pkgs.zoxide} init bash)"
-      '')
-    ];
 
     environment.etc."xdg/kitty/kitty.conf".text = ''
       font_family MesloLGS Nerd Font

pkgs/by-name/ra/ranger-git/package.nix

@@ -16,8 +16,8 @@ ranger.overrideAttrs (selfAttrs: superAttrs: {
   src = fetchFromGitHub {
     owner = "ranger";
     repo = "ranger";
-    rev = "7e38143eaa91c82bed8f309aa167b1e6f2607576";
+    rev = "b00f923911090204139c9e19ba42e9d80aa0889f";
-    hash = "sha256-O0DjecncpN+Bv8Ng+keuvU9iVtWAV4a50p959pMvkww=";
+    hash = "sha256-uMvo+5I5WCJGT5+XRS/NFClDGH4F59ogQJb+RYuraX4=";
   };
 
   patches = superAttrs.patches or [] ++ [

pkgs/by-name/up/upp/buildUppPackage.nix

@@ -0,0 +1,81 @@
+{
+  lib,
+  pkg-config,
+  stdenv,
+  upp,
+}:
+
+{
+  assembly ? ".",
+  extraAssemblies ? [],
+  includeUppsrcAssembly ? true,
+  package,
+  flags ? [],
+  buildMethod ? if stdenv.cc.isClang then "CLANG" else "GCC",
+  buildShared ? false,
+  ...
+}@args:
+
+let
+  flagsString = lib.optionalString (flags != []) ( "+" + lib.concatStringsSep "," flags);
+  output = if buildShared then "lib/${package}.so" else "bin/${package}";
+in
+
+stdenv.mkDerivation (self: {
+  nativeBuildInputs = [
+    pkg-config
+    upp
+  ] ++ args.nativeBuildInputs or [];
+
+  buildInputs = upp.uppsrcDependencies ++ args.buildInputs or [];
+
+  assemblies = lib.concatStringsSep "," (
+    lib.singleton assembly
+    ++ extraAssemblies
+    ++ lib.optional includeUppsrcAssembly "${upp.src}/uppsrc"
+  );
+
+  postUnpack = ''
+    mkdir -p .home
+    export HOME=$(realpath .home)
+  '';
+
+  UPP_NO_BUILD_INFO = true;
+
+  # https://www.ultimatepp.org/app$ide$umk$en-us.html
+  # s - use shared libraries
+  # S - use shared libraries and build shared libraries
+  # u - use target directory
+  # v - verbose
+  # r - release mode
+
+  # FIXME: writing to $out should be done in the install phase
+  buildPhase = ''
+    runHook preBuild
+
+    mkdir -p $out/${if buildShared then "lib" else "bin"}
+
+    umk \
+      "$assemblies" \
+      ${lib.escapeShellArg package} \
+      ${buildMethod} \
+      -${if buildShared then "S" else "s"}uvr "-H$NIX_BUILD_CORES" \
+      ${flagsString} \
+      $out/${output}
+
+    runHook postBuild
+  '';
+
+  # Don't run installPhase unless the user explicitly provides it
+  dontInstall = !lib.hasAttr "installPhase" args;
+} // lib.removeAttrs args [
+  "assembly"
+  "extraAssemblies"
+  "includeUppsrcAssembly"
+  "package"
+  "flags"
+  "buildMethod"
+  "buildShared"
+  "nativeBuildInputs"
+  "buildInputs"
+])

pkgs/by-name/up/upp/no-build-info.patch

@@ -0,0 +1,131 @@
+diff --git a b
+index a3e9af6..0ff3dd8 100644
+--- a/Makefile
++++ b/Makefile
+@@ -100,8 +100,14 @@ all: prepare $(OutFile)
+ .PHONY: build_info
+ build_info:
+-	(date '+#define bmYEAR    %y%n#define bmMONTH   %m%n#define bmDAY     %d%n#define bmHOUR    %H%n#define bmMINUTE  %M%n#define bmSECOND  %S%n#define bmTIME    Time( %y, %m, %d, %H, %M, %S )' | sed 's| 0\([[:digit:]]\)| \1|g' && \
+-	echo '#define bmMACHINE "'`hostname`'"' && \
+-	echo '#define bmUSER    "'`whoami`'"') > "$(UPPOUT)/build_info.h"
++	(echo '#define bmYEAR    1970' && \
++	echo '#define bmMONTH   1' && \
++	echo '#define bmDAY     1' && \
++	echo '#define bmHOUR    0' && \
++	echo '#define bmMINUTE  0' && \
++	echo '#define bmSECOND  1' && \
++	echo '#define bmTIME    Time(1970, 1, 1, 0, 0, 1)' && \
++	echo '#define bmMACHINE ""' && \
++	echo '#define bmUSER    ""') > "$(UPPOUT)/build_info.h"
+ 
+ .PHONY: prepare
+ prepare: \
+index a3e9af6..0ff3dd8 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -100,8 +100,14 @@ all: prepare $(OutFile)
+ .PHONY: build_info
+ build_info:
+-	(date '+#define bmYEAR    %y%n#define bmMONTH   %m%n#define bmDAY     %d%n#define bmHOUR    %H%n#define bmMINUTE  %M%n#define bmSECOND  %S%n#define bmTIME    Time( %y, %m, %d, %H, %M, %S )' | sed 's| 0\([[:digit:]]\)| \1|g' && \
+-	echo '#define bmMACHINE "'`hostname`'"' && \
+-	echo '#define bmUSER    "'`whoami`'"') > "$(UPPOUT)/build_info.h"
++	(echo '#define bmYEAR    1970' && \
++	echo '#define bmMONTH   1' && \
++	echo '#define bmDAY     1' && \
++	echo '#define bmHOUR    0' && \
++	echo '#define bmMINUTE  0' && \
++	echo '#define bmSECOND  1' && \
++	echo '#define bmTIME    Time(1970, 1, 1, 0, 0, 1)' && \
++	echo '#define bmMACHINE ""' && \
++	echo '#define bmUSER    ""') > "$(UPPOUT)/build_info.h"
+ 
+ .PHONY: prepare
+ prepare: \
+--- a/umkMakefile
++++ b/umkMakefile
+@@ -52,8 +52,14 @@ all: prepare $(OutFile)
+ .PHONY: build_info
+ build_info:
+-	(date '+#define bmYEAR    %y%n#define bmMONTH   %m%n#define bmDAY     %d%n#define bmHOUR    %H%n#define bmMINUTE  %M%n#define bmSECOND  %S%n#define bmTIME    Time( %y, %m, %d, %H, %M, %S )' | sed 's| 0\([[:digit:]]\)| \1|g' && \
+-	echo '#define bmMACHINE "'`hostname`'"' && \
+-	echo '#define bmUSER    "'`whoami`'"') > "$(UPPOUT)/build_info.h"
++	(echo '#define bmYEAR    1970' && \
++	echo '#define bmMONTH   1' && \
++	echo '#define bmDAY     1' && \
++	echo '#define bmHOUR    0' && \
++	echo '#define bmMINUTE  0' && \
++	echo '#define bmSECOND  1' && \
++	echo '#define bmTIME    Time(1970, 1, 1, 0, 0, 1)' && \
++	echo '#define bmMACHINE ""' && \
++	echo '#define bmUSER    ""') > "$(UPPOUT)/build_info.h"
+ 
+ .PHONY: prepare
+ prepare: \
+--- a/umkMakefile.in
++++ b/umkMakefile.in
+@@ -52,8 +52,14 @@ all: prepare $(OutFile)
+ .PHONY: build_info
+ build_info:
+-	(date '+#define bmYEAR    %y%n#define bmMONTH   %m%n#define bmDAY     %d%n#define bmHOUR    %H%n#define bmMINUTE  %M%n#define bmSECOND  %S%n#define bmTIME    Time( %y, %m, %d, %H, %M, %S )' | sed 's| 0\([[:digit:]]\)| \1|g' && \
+-	echo '#define bmMACHINE "'`hostname`'"' && \
+-	echo '#define bmUSER    "'`whoami`'"') > "$(UPPOUT)/build_info.h"
++	(echo '#define bmYEAR    1970' && \
++	echo '#define bmMONTH   1' && \
++	echo '#define bmDAY     1' && \
++	echo '#define bmHOUR    0' && \
++	echo '#define bmMINUTE  0' && \
++	echo '#define bmSECOND  1' && \
++	echo '#define bmTIME    Time(1970, 1, 1, 0, 0, 1)' && \
++	echo '#define bmMACHINE ""' && \
++	echo '#define bmUSER    ""') > "$(UPPOUT)/build_info.h"
+ 
+ .PHONY: prepare
+ prepare: \
+--- a/uppsrc/ide/Builders/CppBuilder.cpp
++++ b/uppsrc/ide/Builders/CppBuilder.cpp
+@@ -580,19 +580,32 @@ void CppBuilder::SaveBuildInfo(const String& package)
+ 	RealizePath(path);
+ 	FileOut info(path);
+ 	Time t = GetSysTime();
+-	info << "#define bmYEAR   " << (int)t.year << "\r\n";
+-	info << "#define bmMONTH  " << (int)t.month << "\r\n";
+-	info << "#define bmDAY    " << (int)t.day << "\r\n";
+-	info << "#define bmHOUR   " << (int)t.hour << "\r\n";
+-	info << "#define bmMINUTE " << (int)t.minute << "\r\n";
+-	info << "#define bmSECOND " << (int)t.second << "\r\n";
+-	info << Format("#define bmTIME   Time(%d, %d, %d, %d, %d, %d)\r\n",
+-	        (int)t.year, (int)t.month, (int)t.day, (int)t.hour, (int)t.minute, (int)t.second);
+-	info << "#define bmMACHINE " << AsCString(GetComputerName()) << "\r\n";
+-	info << "#define bmUSER    " << AsCString(GetUserName()) << "\r\n";
+-
+-	if(package == mainpackage)
+-		info << Join(RepoInfo(package), "\r\n");
++	char* no_build_info = getenv("NO_BUILD_INFO");
++	if((no_build_info != NULL) && strcmp(no_build_info, "1")) {
++		info << "#define bmYEAR   " << (int)t.year << "\r\n";
++		info << "#define bmMONTH  " << (int)t.month << "\r\n";
++		info << "#define bmDAY    " << (int)t.day << "\r\n";
++		info << "#define bmHOUR   " << (int)t.hour << "\r\n";
++		info << "#define bmMINUTE " << (int)t.minute << "\r\n";
++		info << "#define bmSECOND " << (int)t.second << "\r\n";
++		info << Format("#define bmTIME   Time(%d, %d, %d, %d, %d, %d)\r\n",
++				(int)t.year, (int)t.month, (int)t.day, (int)t.hour, (int)t.minute, (int)t.second);
++		info << "#define bmMACHINE " << AsCString(GetComputerName()) << "\r\n";
++		info << "#define bmUSER    " << AsCString(GetUserName()) << "\r\n";
++
++		if(package == mainpackage)
++			info << Join(RepoInfo(package), "\r\n");
++	} else {
++		info << "#define bmYEAR   1970\r\n";
++		info << "#define bmMONTH  1\r\n";
++		info << "#define bmDAY    1\r\n";
++		info << "#define bmHOUR   0\r\n";
++		info << "#define bmMINUTE 0\r\n";
++		info << "#define bmSECOND 1\r\n";
++		info << "#define bmTIME   Time(1970, 1, 1, 0, 0, 1)\r\n";
++		info << "#define bmMACHINE \"\"\r\n";
++		info << "#define bmUSER    \"\"\r\n";
++	}
+ }
+ 
+ String CppBuilder::DefinesTargetTime(const char *sep, const String& package, const Package& pkg)

pkgs/by-name/up/upp/package.nix

@@ -0,0 +1,175 @@
+{
+  lib,
+  callPackage,
+  fetchFromGitHub,
+  fetchpatch,
+  makeWrapper,
+  pkg-config,
+  stdenv,
+  makeDesktopItem,
+  copyDesktopItems,
+
+  # pkg-config dependencies
+  libpng,
+  freetype,
+  fontconfig,
+  xorg,
+  expat,
+  gtk3,
+  libnotify,
+
+  # other dependencies
+  libclang,
+  openssl,
+}:
+
+let
+  buildMethod = if stdenv.cc.isClang then "CLANG" else "GCC";
+  uppsrcDependencies = [
+    expat
+    fontconfig
+    freetype
+    gtk3
+    libnotify
+    libpng
+    openssl
+    xorg.libX11
+    xorg.libXdmcp
+    xorg.libXext
+    xorg.libXft
+    xorg.libXinerama
+    xorg.libXrender
+    xorg.libxcb
+  ];
+in stdenv.mkDerivation (self: let
+  selfBootstrap = self.overrideAttrs (selfAttrs: superAttrs: {
+    passthru = superAttrs.passthru // {
+      bootstrap = true;
+    };
+  });
+in {
+  pname = "upp";
+  version = "2025.1";
+
+  src = fetchFromGitHub {
+    owner = "ultimatepp";
+    repo = "ultimatepp";
+    tag = "2025.1";
+    hash = "sha256-/hsjQvc5+HxyaytZ5kryhSxbuaAx0eXuH285q7NPiiw=";
+  };
+
+  enableParallelBuilding = true;
+
+  nativeBuildInputs = [
+    makeWrapper
+    pkg-config
+  ] ++ lib.optional (!self.passthru.bootstrap) copyDesktopItems;
+
+  buildInputs = uppsrcDependencies ++ lib.optional (!self.passthru.bootstrap) libclang;
+
+  patches = [
+    ./no-build-info.patch
+    (fetchpatch {
+      # https://github.com/ultimatepp/ultimatepp/pull/271
+      url = "https://github.com/ultimatepp/ultimatepp/commit/db5cad68673f9571e6571116e0570e22e3e44fe8.patch";
+      hash = "sha256-t2PducjE6b5MjDSAIKvEMdHnT8oTGmI073qYuhLFCh0=";
+    })
+  ];
+  postPatch = ''
+    patchShebangs ./configure_makefile
+    echo "#define IDE_VERSION \"${self.version}\"" > uppsrc/ide/version.h
+  '' + lib.optionalString (!self.passthru.bootstrap) ''
+    mkdir -p .home
+    export HOME=$(realpath .home)
+  '';
+
+  NIX_LDFLAGS = [
+    "-L${libclang.lib}/lib"
+    "-lclang"
+  ];
+
+  NIX_CFLAGS_COMPILE = [
+    "-DflagLCLANG"
+  ];
+
+  UPP_NO_BUILD_INFO = true;
+
+  buildPhase = ''
+    runHook preBuild
+  '' + (
+    # Don't build theide in bootstrap to save resources
+    if self.passthru.bootstrap then ''
+    make -f umkMakefile -j $NIX_BUILD_CORES "$makeFlagsArray"
+  '' else ''
+    ${lib.getExe' selfBootstrap "umk"} uppsrc ide ${buildMethod} -rvs "-H$NIX_BUILD_CORES"
+    ${lib.getExe' selfBootstrap "umk"} uppsrc umk ${buildMethod} -rvs "-H$NIX_BUILD_CORES"
+  '') + ''
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/bin
+  '' + (if self.passthru.bootstrap then ''
+    mv ./umk $out/bin/umk
+  '' else ''
+    mv $HOME/.cache/upp.out/umk/${buildMethod}.Main.Shared/umk $out/bin/umk
+    mv $HOME/.cache/upp.out/ide/${buildMethod}.Gui.Main.Shared/ide $out/bin/theide
+
+    wrapProgram $out/bin/theide \
+      --unset WAYLAND_DISPLAY
+
+    mkdir -p $out/share/icons/hicolor/scalable/apps
+    cp uppsrc/ide/icon.svg $out/share/icons/hicolor/scalable/apps/upp-theide.svg
+    for size in 16 32 64 128 256 512; do
+      mkdir -p $out/share/icons/hicolor/''${size}x''${size}/apps
+      cp uppsrc/ide/icon''${size}x''${size}.png $out/share/icons/hicolor/''${size}x''${size}/apps/upp-theide.png
+    done
+  '') + ''
+    runHook postInstall
+  '';
+
+  desktopItems = [
+    (makeDesktopItem {
+      name = "upp-theide";
+      exec = "theide";
+      icon = "upp-theide";
+      desktopName = "TheIDE";
+      comment = "The U++ Framework IDE";
+      categories = [ "Development" "IDE" ];
+      terminal = false;
+    })
+  ];
+
+  passthru = {
+    bootstrap = false;
+    inherit uppsrcDependencies;
+    buildUppPackage = callPackage ./buildUppPackage.nix {};
+    tests = lib.genAttrs [
+      "AddressBookXML2"
+      "Bombs"
+      "Days"
+      "SQLApp"
+      "httpcli"
+    ] (examplePackageName: self.passthru.buildUppPackage {
+      pname = examplePackageName;
+      version = self.version;
+      package = examplePackageName;
+      src = self.src;
+      includeUppsrcAssembly = false;
+      buildInputs = self.passthru.uppsrcDependencies;
+      assembly = "examples";
+      extraAssemblies = [
+        "uppsrc"
+      ];
+    });
+  };
+
+  meta = {
+    homepage = "https://www.ultimatepp.org";
+    description = "C++ cross-platform rapid application development framework";
+    license = lib.licenses.bsd2;
+    mainProgram = "umk";
+  };
+})

pkgs/overlays/unstable-from-source.nix

@@ -1,8 +1,6 @@
 {
   unstableSource,
   attributeName ? "unstable",
-  # callPackage :: function | boolean
-  callPackage ? false,
 }:
 
 self: super:
@@ -17,58 +15,26 @@ let
     "parsed"
   ];
 
-  # if overlay is found in previous layer, then it was provided in "overlays" argument
+  unstablePkgsForNixpkgs = nixpkgs: import unstableSource {
-  # otherwise, it is provided in "crossOverlays" argument.
-  overlays = self.lib.groupBy (overlay:
-    if self.lib.elem overlay self.buildPackages.overlays then "allLayers"
-    else "finalLayer"
-  ) self.overlays;
-
-  unstablePkgs = import unstableSource {
     # localSystem -> pkgs.stdenv.buildPlatform
-    localSystem = sanitizePlatform self.stdenv.buildPlatform;
+    localSystem = sanitizePlatform nixpkgs.stdenv.buildPlatform;
     # crossSystem -> pkgs.stdenv.hostPlatform or pkgs.stdenv.targetPlatform ??
     # passing below
     # config -> pkgs.config
-    config = self.config;
+    config = nixpkgs.config;
-    # overlays -> pkgs.buildPackages.overlays
+    # overlays -> partial of pkgs.overlays
-    overlays = overlays.allLayers or [];
+    overlays = nixpkgs.overlays;
-    # crossOverlays -> pkgs.overlays without pkgs.buildPackages.overlays
+    # crossOverlays -> partial of pkgs.overlays
-    crossOverlays = overlays.finalLayer or [];
+    # crossOverlays are merged to overlays, not sure what issues that might raise.
+    # ignoring.
   } // self.lib.optionalAttrs (
-    self.lib.systems.equals self.stdenv.buildPlatform self.stdenv.hostPlatform
+    self.lib.systems.equals nixpkgs.stdenv.buildPlatform nixpkgs.stdenv.hostPlatform
   ) {
     # workaround for some odd structured packages that changes behaviour
     # when crossSystem is passed.
-    crossSystem = sanitizePlatform self.stdenv.hostPlatform;
+    crossSystem = sanitizePlatform nixpkgs.stdenv.hostPlatform;
   };
-
-  callPackage' = if builtins.isFunction callPackage then callPackage
-    else if builtins.isBool callPackage && callPackage then self.callPackage
-    else if builtins.isBool callPackage && !callPackage then throw "this should never be evaluated"
-    else throw ''
-      callPackage argument should be a function or a boolean.
-      If you want to use the callPackage from self, set it to true.
-      If you want to use a custom callPackage, set it to a function (pkgs.callPackage).
-    '';
-
-  callPackagesUnstablePkgs = self.lib.mapAttrsRecursiveCond (
-    attrset: !(self.lib.hasAttr "override" attrset) && attrset.recurseForDerivations or false
-  ) (
-    _: unstablePackage: callPackage' {
-      # For some reason, override functor of the package has its argument set as required,
-      # which is totally false! the override functor can take all of those arguemnts optionally.
-      __functionArgs = self.lib.mapAttrs (_: _: true) (self.lib.functionArgs unstablePackage.override);
-      __functor =
-        if builtins.isFunction unstablePackage.override then unstablePackage.override
-        else unstablePackage.override.__functor;
-    } {}
-  ) unstablePkgs;
-
 in
 {
-  "${attributeName}" = if !useUnstable then self
+  "${attributeName}" = if useUnstable then unstablePkgsForNixpkgs self else self;
-    # if callPackage is not false
-    else if !(builtins.isBool callPackage && !callPackage) then callPackagesUnstablePkgs
-    else unstablePkgs;
 }