diff --git a/bsc/nix/default.nix b/bsc/nix/default.nix
new file mode 100644
index 0000000..78c5c3e
--- /dev/null
+++ b/bsc/nix/default.nix
@@ -0,0 +1,219 @@
+{ lib, fetchurl, fetchFromGitHub, callPackage
+, storeDir ? "/nix/store"
+, stateDir ? "/nix/var"
+, confDir ? "/etc"
+, boehmgc
+, stdenv, llvmPackages_6
+}:
+
+let
+
+common =
+  { lib, stdenv, fetchpatch, perl, curl, bzip2, sqlite, openssl ? null, xz
+  , bash, coreutils, gzip, gnutar
+  , pkgconfig, boehmgc, perlPackages, libsodium, brotli, boost, editline, nlohmann_json
+  , autoreconfHook, autoconf-archive, bison, flex, libxml2, libxslt, docbook5, docbook_xsl_ns
+  , jq, libarchive, rustc, cargo
+  # Used by tests
+  , gmock
+  , busybox-sandbox-shell
+  , storeDir
+  , stateDir
+  , confDir
+  , withLibseccomp ? lib.any (lib.meta.platformMatch stdenv.hostPlatform) libseccomp.meta.platforms, libseccomp
+  , withAWS ? stdenv.isLinux || stdenv.isDarwin, aws-sdk-cpp
+
+  , name, suffix ? "", src, crates ? null
+
+  }:
+  let
+     sh = busybox-sandbox-shell;
+     nix = stdenv.mkDerivation rec {
+      inherit name src;
+      version = lib.getVersion name;
+
+      is24 = lib.versionAtLeast version "2.4pre";
+      isExactly23 = lib.versionAtLeast version "2.3" && lib.versionOlder version "2.4";
+
+      VERSION_SUFFIX = suffix;
+
+      outputs = [ "out" "dev" "man" "doc" ];
+
+      nativeBuildInputs =
+        [ pkgconfig ]
+        ++ lib.optionals is24 [ autoreconfHook autoconf-archive bison flex libxml2 libxslt
+                                docbook5 docbook_xsl_ns jq gmock ];
+
+      buildInputs =
+        [ curl openssl sqlite xz bzip2 nlohmann_json
+          brotli boost editline
+        ]
+        ++ lib.optional (stdenv.isLinux || stdenv.isDarwin) libsodium
+        ++ lib.optionals is24 [ libarchive rustc cargo ]
+        ++ lib.optional withLibseccomp libseccomp
+        ++ lib.optional withAWS
+            ((aws-sdk-cpp.override {
+              apis = ["s3" "transfer"];
+              customMemoryManagement = false;
+            }).overrideDerivation (args: {
+              patches = args.patches or [] ++ [(fetchpatch {
+                url = "https://github.com/edolstra/aws-sdk-cpp/commit/7d58e303159b2fb343af9a1ec4512238efa147c7.patch";
+                sha256 = "103phn6kyvs1yc7fibyin3lgxz699qakhw671kl207484im55id1";
+              })];
+            }));
+
+      propagatedBuildInputs = [ boehmgc ];
+
+      # Seems to be required when using std::atomic with 64-bit types
+      NIX_LDFLAGS = lib.optionalString (stdenv.hostPlatform.system == "armv5tel-linux" || stdenv.hostPlatform.system == "armv6l-linux") "-latomic";
+
+      preConfigure =
+        # Copy libboost_context so we don't get all of Boost in our closure.
+        # https://github.com/NixOS/nixpkgs/issues/45462
+        ''
+          mkdir -p $out/lib
+          cp -pd ${boost}/lib/{libboost_context*,libboost_thread*,libboost_system*} $out/lib
+          rm -f $out/lib/*.a
+          ${lib.optionalString stdenv.isLinux ''
+            chmod u+w $out/lib/*.so.*
+            patchelf --set-rpath $out/lib:${stdenv.cc.cc.lib}/lib $out/lib/libboost_thread.so.*
+          ''}
+        '' +
+        # Unpack the Rust crates.
+        lib.optionalString is24 ''
+          tar xvf ${crates} -C nix-rust/
+          mv nix-rust/nix-vendored-crates* nix-rust/vendor
+        '' +
+        # For Nix-2.3, patch around an issue where the Nix configure step pulls in the
+        # build system's bash and other utilities when cross-compiling
+        lib.optionalString (stdenv.buildPlatform != stdenv.hostPlatform && isExactly23) ''
+          mkdir tmp/
+          substitute corepkgs/config.nix.in tmp/config.nix.in \
+            --subst-var-by bash ${bash}/bin/bash \
+            --subst-var-by coreutils ${coreutils}/bin \
+            --subst-var-by bzip2 ${bzip2}/bin/bzip2 \
+            --subst-var-by gzip ${gzip}/bin/gzip \
+            --subst-var-by xz ${xz}/bin/xz \
+            --subst-var-by tar ${gnutar}/bin/tar \
+            --subst-var-by tr ${coreutils}/bin/tr
+          mv tmp/config.nix.in corepkgs/config.nix.in
+          '';
+
+      configureFlags =
+        [ "--with-store-dir=${storeDir}"
+          "--localstatedir=${stateDir}"
+          "--sysconfdir=${confDir}"
+          "--disable-init-state"
+          "--enable-gc"
+        ]
+        ++ lib.optionals stdenv.isLinux [
+          "--with-sandbox-shell=${sh}/bin/busybox"
+        ]
+        ++ lib.optional (
+            stdenv.hostPlatform != stdenv.buildPlatform && stdenv.hostPlatform ? nix && stdenv.hostPlatform.nix ? system
+        ) ''--with-system=${stdenv.hostPlatform.nix.system}''
+           # RISC-V support in progress https://github.com/seccomp/libseccomp/pull/50
+        ++ lib.optional (!withLibseccomp) "--disable-seccomp-sandboxing";
+
+      makeFlags = [ "profiledir=$(out)/etc/profile.d" ];
+
+      installFlags = [ "sysconfdir=$(out)/etc" ];
+
+      doInstallCheck = false;
+
+      # socket path becomes too long otherwise
+      #preInstallCheck = lib.optional stdenv.isDarwin ''
+      #  export TMPDIR=$NIX_BUILD_TOP
+      #'';
+
+      separateDebugInfo = stdenv.isLinux;
+
+      enableParallelBuilding = true;
+
+      meta = {
+        description = "Powerful package manager that makes package management reliable and reproducible";
+        longDescription = ''
+          Nix is a powerful package manager for Linux and other Unix systems that
+          makes package management reliable and reproducible. It provides atomic
+          upgrades and rollbacks, side-by-side installation of multiple versions of
+          a package, multi-user package management and easy setup of build
+          environments.
+        '';
+        homepage = "https://nixos.org/";
+        license = stdenv.lib.licenses.lgpl2Plus;
+        maintainers = [ stdenv.lib.maintainers.eelco ];
+        platforms = stdenv.lib.platforms.unix;
+        outputsToInstall = [ "out" "man" ];
+      };
+
+      passthru = {
+        perl-bindings = stdenv.mkDerivation {
+          pname = "nix-perl";
+          inherit version;
+
+          inherit src;
+
+          postUnpack = "sourceRoot=$sourceRoot/perl";
+
+          # This is not cross-compile safe, don't have time to fix right now
+          # but noting for future travellers.
+          nativeBuildInputs =
+            [ perl pkgconfig curl nix libsodium boost autoreconfHook autoconf-archive ];
+
+          configureFlags =
+            [ "--with-dbi=${perlPackages.DBI}/${perl.libPrefix}"
+              "--with-dbd-sqlite=${perlPackages.DBDSQLite}/${perl.libPrefix}"
+            ];
+
+          preConfigure = "export NIX_STATE_DIR=$TMPDIR";
+
+          preBuild = "unset NIX_INDENT_MAKE";
+        };
+      };
+    };
+  in nix;
+
+in rec {
+
+  nix = nixUnstable;
+
+  nixUnstable = lib.lowPrio (callPackage common rec {
+    name = "nix-2.4${suffix}";
+    suffix = "pre7534_b92f58f6";
+
+    #src = /home/Computational/rarias/nix/nix-rodarima;
+    src = fetchFromGitHub {
+      owner = "rodarima";
+      repo = "nix";
+      rev = "3a642187c33ed46d952d3a50a83b2576b704fab7";
+      sha256 = "0s8is2czpkcj1x1kcjqgbnsbbl03w3fwjjiclsd44zh1ij3wb90s";
+    };
+
+    crates = fetchurl {
+      url = "https://hydra.nixos.org/build/118797694/download/1/nix-vendored-crates-2.4pre7534_b92f58f6.tar.xz";
+      sha256 = "a4c2612bbd81732bbb899bc0c230e07b16f6b6150ffbb19c4907dedbbc2bf9fc";
+    };
+
+    inherit storeDir stateDir confDir boehmgc;
+  });
+
+  nixFlakes = lib.lowPrio (callPackage common rec {
+    name = "nix-2.4${suffix}";
+    suffix = "pre20200521_00b562c";
+
+    src = fetchFromGitHub {
+      owner = "NixOS";
+      repo = "nix";
+      rev = "00b562c87ec4c3bbe514f5dc1f4d1c41f66f66bf";
+      sha256 = "0s8is2czpkcj1x1kcjqgbnsbbl03w3fwjjiclsd44zh1ij3wb90s";
+    };
+
+    crates = fetchurl {
+      url = "https://hydra.nixos.org/build/118093786/download/1/nix-vendored-crates-2.4pre20200501_941f952.tar.xz";
+      sha256 = "060f4n5srdbb8vsj0m14aqch7im79a4h5g3nrs41p1xc602vhcdl";
+    };
+
+    inherit storeDir stateDir confDir boehmgc;
+  });
+
+}
diff --git a/default.nix b/default.nix
index 4b41ab4..ffd2af3 100644
--- a/default.nix
+++ b/default.nix
@@ -78,6 +78,12 @@ let
       inherit mpi tampi;
     };
 
+    inherit (callPackage ./bsc/nix {
+        storeDir = "/nix/store";
+        stateDir = "/nix/var";
+        boehmgc = pkgs.boehmgc.override { enableLargeConfig = true; };
+        })
+      nix;
   };
 
 in pkgs // self