diff --git a/pkgs/nim/default.nix b/pkgs/nim/default.nix
index 25b1c48..c4be7c2 100644
--- a/pkgs/nim/default.nix
+++ b/pkgs/nim/default.nix
@@ -1,8 +1,9 @@
 # https://nim-lang.github.io/Nim/packaging.html
 # https://nim-lang.org/docs/nimc.html
 
-{ lib, buildPackages, stdenv, fetchurl, fetchgit, fetchFromGitHub, makeWrapper
-, openssl, pcre, readline, boehmgc, sqlite, nim-unwrapped }:
+{ lib, callPackage, buildPackages, stdenv, fetchurl, fetchgit, fetchFromGitHub
+, makeWrapper, openssl, pcre, readline, boehmgc, sqlite, nim-unwrapped
+, nimble-unwrapped }:
 
 let
   parseCpu = platform:
@@ -22,9 +23,9 @@ let
       "mips64"
     else if isMsp430 then
       "msp430"
-    else if isPowerPC && is32bit then
+    else if isPower && is32bit then
       "powerpc"
-    else if isPowerPC && is64bit then
+    else if isPower && is64bit then
       "powerpc64"
     else if isRiscV && is64bit then
       "riscv64"
@@ -71,15 +72,17 @@ let
   nimHost = parsePlatform stdenv.hostPlatform;
   nimTarget = parsePlatform stdenv.targetPlatform;
 
-  bootstrapCompiler = stdenv.mkDerivation rec {
+  bootstrapCompiler = let
+    revision = "561b417c65791cd8356b5f73620914ceff845d10";
+  in stdenv.mkDerivation {
     pname = "nim-bootstrap";
-    version = "0.20.0";
+    version = "g${lib.substring 0 7 revision}";
 
     src = fetchgit {
       # A Git checkout is much smaller than a GitHub tarball.
-      url = "https://github.com/nim-lang/csources.git";
-      rev = "v${version}";
-      sha256 = "0i6vsfy1sgapx43n226q8m0pvn159sw2mhp50zm3hhb9zfijanis";
+      url = "https://github.com/nim-lang/csources_v1.git";
+      rev = revision;
+      sha256 = "1c2k681knrha1zmf4abhb32i2wwd3nwflzylnqryxk753swla043";
     };
 
     enableParallelBuilding = true;
@@ -95,12 +98,12 @@ in {
 
   nim-unwrapped = stdenv.mkDerivation rec {
     pname = "nim-unwrapped";
-    version = "1.4.8";
+    version = "1.6.0";
     strictDeps = true;
 
     src = fetchurl {
       url = "https://nim-lang.org/download/nim-${version}.tar.xz";
-      hash = "sha256-t5jFd0EdfZW4YxJh27Nnbp0a/Z42dA0ESWagVVtBRBo=";
+      hash = "sha256-UgZdSNcqcnAuwa/l96mDHhFnNTHiec3/nK7AGgfuxj0=";
     };
 
     buildInputs = [ boehmgc openssl pcre readline sqlite ];
@@ -111,7 +114,7 @@ in {
 
       ./nixbuild.patch
       # Load libraries at runtime by absolute path
-    ];
+    ] ++ lib.optional (!stdenv.hostPlatform.isWindows) ./toLocation.patch;
 
     configurePhase = ''
       runHook preConfigure
@@ -186,138 +189,141 @@ in {
     nim' = buildPackages.nim-unwrapped;
     nimble' = buildPackages.nimble-unwrapped;
     inherit (stdenv) targetPlatform;
-  in stdenv.mkDerivation {
-    name = "${targetPlatform.config}-nim-wrapper-${nim'.version}";
-    inherit (nim') version;
-    preferLocalBuild = true;
-    strictDeps = true;
+    self = stdenv.mkDerivation {
+      name = "${targetPlatform.config}-nim-wrapper-${nim'.version}";
+      inherit (nim') version;
+      preferLocalBuild = true;
+      strictDeps = true;
 
-    nativeBuildInputs = [ makeWrapper ];
+      nativeBuildInputs = [ makeWrapper ];
 
-    patches = [
-      ./nim.cfg.patch
-      # Remove configurations that clash with ours
-    ];
+      patches = [
+        ./nim.cfg.patch
+        # Remove configurations that clash with ours
+      ];
 
-    unpackPhase = ''
-      runHook preUnpack
-      tar xf ${nim'.src} nim-$version/config
-      cd nim-$version
-      runHook postUnpack
-    '';
-
-    dontConfigure = true;
-
-    buildPhase =
-      # Configure the Nim compiler to use $CC and $CXX as backends
-      # The compiler is configured by two configuration files, each with
-      # a different DSL. The order of evaluation matters and that order
-      # is not documented, so duplicate the configuration across both files.
-      ''
-        runHook preBuild
-        cat >> config/config.nims << WTF
-
-        switch("os", "${nimTarget.os}")
-        switch("cpu", "${nimTarget.cpu}")
-        switch("define", "nixbuild")
-
-        # Configure the compiler using the $CC set by Nix at build time
-        import strutils
-        let cc = getEnv"CC"
-        if cc.contains("gcc"):
-          switch("cc", "gcc")
-        elif cc.contains("clang"):
-          switch("cc", "clang")
-        WTF
-
-        mv config/nim.cfg config/nim.cfg.old
-        cat > config/nim.cfg << WTF
-        os = "${nimTarget.os}"
-        cpu =  "${nimTarget.cpu}"
-        define:"nixbuild"
-        WTF
-
-        cat >> config/nim.cfg < config/nim.cfg.old
-        rm config/nim.cfg.old
-
-        cat >> config/nim.cfg << WTF
-
-        clang.cpp.exe %= "\$CXX"
-        clang.cpp.linkerexe %= "\$CXX"
-        clang.exe %= "\$CC"
-        clang.linkerexe %= "\$CC"
-        gcc.cpp.exe %= "\$CXX"
-        gcc.cpp.linkerexe %= "\$CXX"
-        gcc.exe %= "\$CC"
-        gcc.linkerexe %= "\$CC"
-        WTF
-
-        runHook postBuild
+      unpackPhase = ''
+        runHook preUnpack
+        tar xf ${nim'.src} nim-$version/config
+        cd nim-$version
+        runHook postUnpack
       '';
 
-    wrapperArgs = [
-      "--prefix PATH : ${lib.makeBinPath [ buildPackages.gdb ]}:${
-        placeholder "out"
-      }/bin"
-      # Used by nim-gdb
+      dontConfigure = true;
 
-      "--prefix LD_LIBRARY_PATH : ${lib.makeLibraryPath [ openssl pcre ]}"
-      # These libraries may be referred to by the standard library.
-      # This is broken for cross-compilation because the package
-      # set will be shifted back by nativeBuildInputs.
+      buildPhase =
+        # Configure the Nim compiler to use $CC and $CXX as backends
+        # The compiler is configured by two configuration files, each with
+        # a different DSL. The order of evaluation matters and that order
+        # is not documented, so duplicate the configuration across both files.
+        ''
+          runHook preBuild
+          cat >> config/config.nims << WTF
 
-      "--set NIM_CONFIG_PATH ${placeholder "out"}/etc/nim"
-      # Use the custom configuration
+          switch("os", "${nimTarget.os}")
+          switch("cpu", "${nimTarget.cpu}")
+          switch("define", "nixbuild")
 
-      ''--set NIX_HARDENING_ENABLE "''${NIX_HARDENING_ENABLE/fortify}"''
-      # Fortify hardening appends -O2 to gcc flags which is unwanted for unoptimized nim builds.
-    ];
+          # Configure the compiler using the $CC set by Nix at build time
+          import strutils
+          let cc = getEnv"CC"
+          if cc.contains("gcc"):
+            switch("cc", "gcc")
+          elif cc.contains("clang"):
+            switch("cc", "clang")
+          WTF
 
-    installPhase = ''
-      runHook preInstall
+          mv config/nim.cfg config/nim.cfg.old
+          cat > config/nim.cfg << WTF
+          os = "${nimTarget.os}"
+          cpu =  "${nimTarget.cpu}"
+          define:"nixbuild"
+          WTF
 
-      mkdir -p $out/bin $out/etc
+          cat >> config/nim.cfg < config/nim.cfg.old
+          rm config/nim.cfg.old
 
-      cp -r config $out/etc/nim
+          cat >> config/nim.cfg << WTF
+
+          clang.cpp.exe %= "\$CXX"
+          clang.cpp.linkerexe %= "\$CXX"
+          clang.exe %= "\$CC"
+          clang.linkerexe %= "\$CC"
+          gcc.cpp.exe %= "\$CXX"
+          gcc.cpp.linkerexe %= "\$CXX"
+          gcc.exe %= "\$CC"
+          gcc.linkerexe %= "\$CC"
+          WTF
+
+          runHook postBuild
+        '';
+
+      wrapperArgs = [
+        "--prefix PATH : ${lib.makeBinPath [ buildPackages.gdb ]}:${
+          placeholder "out"
+        }/bin"
+        # Used by nim-gdb
+
+        "--prefix LD_LIBRARY_PATH : ${lib.makeLibraryPath [ openssl pcre ]}"
+        # These libraries may be referred to by the standard library.
+        # This is broken for cross-compilation because the package
+        # set will be shifted back by nativeBuildInputs.
+
+        "--set NIM_CONFIG_PATH ${placeholder "out"}/etc/nim"
+        # Use the custom configuration
+
+        ''--set NIX_HARDENING_ENABLE "''${NIX_HARDENING_ENABLE/fortify}"''
+        # Fortify hardening appends -O2 to gcc flags which is unwanted for unoptimized nim builds.
+      ];
+
+      installPhase = ''
+        runHook preInstall
+
+        mkdir -p $out/bin $out/etc
+
+        cp -r config $out/etc/nim
+
+        for binpath in ${nim'}/bin/nim?*; do
+          local binname=`basename $binpath`
+          makeWrapper \
+            $binpath $out/bin/${targetPlatform.config}-$binname \
+            $wrapperArgs
+          ln -s $out/bin/${targetPlatform.config}-$binname $out/bin/$binname
+        done
 
-      for binpath in ${nim'}/bin/nim?*; do
-        local binname=`basename $binpath`
         makeWrapper \
-          $binpath $out/bin/${targetPlatform.config}-$binname \
+          ${nim'}/nim/bin/nim $out/bin/${targetPlatform.config}-nim \
+          --set-default CC $(command -v $CC) \
+          --set-default CXX $(command -v $CXX) \
           $wrapperArgs
-        ln -s $out/bin/${targetPlatform.config}-$binname $out/bin/$binname
-      done
+        ln -s $out/bin/${targetPlatform.config}-nim $out/bin/nim
 
-      makeWrapper \
-        ${nim'}/nim/bin/nim $out/bin/${targetPlatform.config}-nim \
-        --set-default CC $(command -v $CC) \
-        --set-default CXX $(command -v $CXX) \
-        $wrapperArgs
-      ln -s $out/bin/${targetPlatform.config}-nim $out/bin/nim
+        makeWrapper \
+          ${nim'}/bin/testament $out/bin/${targetPlatform.config}-testament \
+          $wrapperArgs
+        ln -s $out/bin/${targetPlatform.config}-testament $out/bin/testament
 
-      makeWrapper \
-        ${nim'}/bin/testament $out/bin/${targetPlatform.config}-testament \
-        $wrapperArgs
-      ln -s $out/bin/${targetPlatform.config}-testament $out/bin/testament
+        makeWrapper \
+          ${nimble'}/bin/nimble $out/bin/${targetPlatform.config}-nimble \
+          --suffix PATH : $out/bin
+        ln -s $out/bin/${targetPlatform.config}-nimble $out/bin/nimble
 
-      makeWrapper \
-        ${nimble'}/bin/nimble $out/bin/${targetPlatform.config}-nimble \
-        --suffix PATH : $out/bin
-      ln -s $out/bin/${targetPlatform.config}-nimble $out/bin/nimble
+        runHook postInstall
+      '';
 
-      runHook postInstall
-    '';
+      passthru = {
+        nim = nim';
+        nimble = nimble';
+      };
 
-    passthru = {
-      nim = nim';
-      nimble = nimble';
-    };
-
-    meta = nim'.meta // {
-      description = nim'.meta.description
-        + " (${targetPlatform.config} wrapper)";
-      platforms = with lib.platforms; unix ++ genode;
+      meta = nim'.meta // {
+        description = nim'.meta.description
+          + " (${targetPlatform.config} wrapper)";
+        platforms = with lib.platforms; unix ++ genode;
+      };
     };
+  in self // {
+    pkgs = callPackage ../../../top-level/nim-packages.nix { nim = self; };
   };
 
 }
diff --git a/pkgs/nim/nim.cfg.patch b/pkgs/nim/nim.cfg.patch
index a95b672..7195132 100644
--- a/pkgs/nim/nim.cfg.patch
+++ b/pkgs/nim/nim.cfg.patch
@@ -1,5 +1,5 @@
 diff --git a/config/nim.cfg b/config/nim.cfg
-index a33a2f0a9..e069193ff 100644
+index 3b964d124..850ed0ed9 100644
 --- a/config/nim.cfg
 +++ b/config/nim.cfg
 @@ -8,26 +8,12 @@
@@ -29,42 +29,3 @@ index a33a2f0a9..e069193ff 100644
  path="$lib/deprecated/core"
  path="$lib/deprecated/pure"
  path="$lib/pure/collections"
-@@ -111,7 +97,7 @@ path="$lib/pure"
- @end
- 
- @if unix:
--  @if not bsd or haiku:
-+  @if not bsd or genode or haiku:
-     # -fopenmp
-     gcc.options.linker = "-ldl"
-     gcc.cpp.options.linker = "-ldl"
-@@ -295,29 +281,6 @@ vcc.cpp.options.size = "/O1"
- # Configuration for the Tiny C Compiler:
- tcc.options.always = "-w"
- 
--# Configuration for the Genode toolchain
--@if genode:
--  noCppExceptions # avoid std C++
--  tlsEmulation:on # no TLS segment register magic
--  @if i386 or amd64:
--    gcc.exe = "genode-x86-gcc"
--    gcc.cpp.exe = "genode-x86-g++"
--    gcc.cpp.linkerexe = "genode-x86-ld"
--  @elif arm:
--    gcc.exe = "genode-arm-gcc"
--    gcc.cpp.exe = "genode-arm-g++"
--    gcc.cpp.linkerexe = "genode-arm-ld"
--  @elif arm64:
--    gcc.exe = "genode-aarch64-gcc"
--    gcc.cpp.exe = "genode-aarch64-g++"
--    gcc.cpp.linkerexe = "genode-aarch64-ld"
--  @elif riscv64:
--    gcc.exe = "genode-riscv-gcc"
--    gcc.cpp.exe = "genode-riscv-g++"
--    gcc.cpp.linkerexe = "genode-riscv-ld"
--  @end
--@end
--
- @if arm or arm64:
-   --define:nimEmulateOverflowChecks
- @end
diff --git a/pkgs/nim/toLocation.patch b/pkgs/nim/toLocation.patch
new file mode 100644
index 0000000..a3db460
--- /dev/null
+++ b/pkgs/nim/toLocation.patch
@@ -0,0 +1,16 @@
+diff --git a/lib/std/private/miscdollars.nim b/lib/std/private/miscdollars.nim
+index 840fedf54..6c3436308 100644
+--- a/lib/std/private/miscdollars.nim
++++ b/lib/std/private/miscdollars.nim
+@@ -6,9 +6,8 @@ template toLocation*(result: var string, file: string | cstring, line: int, col:
+   # it can be done in a single place.
+   result.add file
+   if line > 0:
+-    result.add "("
++    result.add ":"
+     addInt(result, line)
+     if col > 0:
+-      result.add ", "
++      result.add ":"
+       addInt(result, col)
+-    result.add ")"