diff --git a/pkgs/README.rst b/pkgs/README.rst
deleted file mode 100644
--- a/pkgs/README.rst
+++ /dev/null
@@ -1,28 +0,0 @@
-
-==============================
- Generate the Nix expressions
-==============================
-
-Details can be found in the repository of `RhodeCode Enterprise CE`_ inside of
-the file `docs/contributing/dependencies.rst`.
-
-Start the environment as follows:
-
-.. code:: shell
-
-   nix-shell pkgs/shell-generate.nix
-
-
-Python dependencies
-===================
-
-.. code:: shell
-
-   pip2nix generate --licenses
-   # or faster
-   nix-shell pkgs/shell-generate.nix --command "pip2nix generate --licenses"
-
-
-.. Links
-
-.. _RhodeCode Enterprise CE: https://code.rhodecode.com/rhodecode-enterprise-ce
diff --git a/pkgs/nix-common/pip2nix.nix b/pkgs/nix-common/pip2nix.nix
deleted file mode 100755
--- a/pkgs/nix-common/pip2nix.nix
+++ /dev/null
@@ -1,29 +0,0 @@
-{ pkgs
-, pythonPackages
-}:
-
-rec {
-  pip2nix-src = pkgs.fetchzip {
-    url = https://code.rhodecode.com/upstream/pip2nix/artifacts/download/0-007f541a-7294-4a4c-9b52-ba102ce265f1.tar.gz;
-    sha256 = "02747glj0v6pdj0ylcwnrvp38ig8ramvipn9z3la9gknx6rhxrh6";
-  };
-
-  pip2nix = import pip2nix-src {
-    inherit
-      pkgs
-      pythonPackages;
-  };
-
-  flit = pythonPackages.flit;
-
-  cython = pythonPackages.pip-tools;
-
-  pip-tools = pythonPackages.pip-tools;
-
-  setuptools = pythonPackages.setuptools;
-
-  wheel = pythonPackages.wheel;
-
-  pip = pythonPackages.pip;
-
-}
diff --git a/pkgs/overlays.nix b/pkgs/overlays.nix
deleted file mode 100755
--- a/pkgs/overlays.nix
+++ /dev/null
@@ -1,100 +0,0 @@
-self: super: {
-
-  # change GIT version
-  # latest supported are in: https://github.com/NixOS/nixpkgs/tree/master/pkgs/applications/version-management/git-and-tools/git
-  git = super.lib.overrideDerivation super.git (oldAttrs: {
-    name = "git-2.25.3";
-    src = self.fetchurl {
-      url = "https://www.kernel.org/pub/software/scm/git/git-2.25.3.tar.xz";
-      sha256 = "0yvr97cl0dvj3fwblq1mb0cp97v8hrn9l98p8b1jx8815mbsnz9h";
-    };
-
-    # patches come from: https://github.com/NixOS/nixpkgs/tree/master/pkgs/applications/version-management/git-and-tools/git
-    patches = [
-      ./patches/git/docbook2texi.patch
-      ./patches/git/git-sh-i18n.patch
-      ./patches/git/ssh-path.patch
-      ./patches/git/git-send-email-honor-PATH.patch
-      ./patches/git/installCheck-path.patch
-    ];
-
-  });
-
-  libgit2rc = super.lib.overrideDerivation super.libgit2 (oldAttrs: {
-    name = "libgit2-1.0.1";
-    version = "1.0.1";
-
-    src = self.fetchFromGitHub {
-        owner = "libgit2";
-        repo = "libgit2";
-        rev = "v1.0.1";
-        sha256 = "0xqdnvrq1bnf8hxh9xjw25y2cg91agvd9jr5qwd30z2a0dzll22v";
-    };
-
-    cmakeFlags = [ "-DTHREADSAFE=ON" "-DUSE_HTTPS=no"];
-
-    buildInputs = [
-        super.zlib
-        super.libssh2
-        super.openssl
-        super.curl
-    ];
-
-  });
-
-  # Override subversion derivation to
-  #  - activate special python bindings
-  subversionrc =
-
-  let
-    py3c = self.python38Packages.buildPythonPackage rec {
-        pname = "py3c";
-        version = "1.1";
-        src = self.fetchurl {
-          url = "https://github.com/encukou/py3c/archive/v1.1.tar.gz";
-          sha256 = "086xxccgzr4zkhsjkbcakydghrmll3rkxdcxhp5d1pidr4mw5zy7";
-        };
-        format = "setuptools";
-        doCheck = false;
-        buildInputs = [];
-        checkInputs = [];
-        nativeBuildInputs = [];
-        propagatedBuildInputs = [];
-        meta = {
-          license = [  ];
-        };
-
-        preBuild = ''
-            make install
-        '';
-    };
-
-    pythonWithEnv = self.python38Packages.python.buildEnv.override {
-        extraLibs = [ py3c ];
-    };
-
-    subversionWithPython = super.subversion.override {
-      httpSupport = true; # client must support http
-      pythonBindings = true;
-      python = pythonWithEnv;
-    };
-
-  in
-    super.lib.overrideDerivation subversionWithPython (oldAttrs: {
-      name = "subversion-1.14.0";
-      src = self.fetchurl {
-        url = "https://archive.apache.org/dist/subversion/subversion-1.14.0.tar.gz";
-        sha256 = "1l1px5kva5a13pi2rkxfgxfvypvl6bmbkdag6168fhayad3i2ggg";
-      };
-
-      ## use internal lz4/utf8proc because it is stable and shipped with SVN
-      configureFlags = oldAttrs.configureFlags ++ [
-        " --with-lz4=internal"
-        " --with-utf8proc=internal"
-        " --with-py3c=${py3c}/include/python3.8/py3c/"
-      ];
-  });
-
-
-
-}
diff --git a/pkgs/patches/dulwich/handle-dir-refs.patch b/pkgs/patches/dulwich/handle-dir-refs.patch
deleted file mode 100644
--- a/pkgs/patches/dulwich/handle-dir-refs.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-This patch allows handling directories inside the refs/heads. This was added in dulwich
-0.19.X series
-
-diff -rup dulwich-0.13.0-orig/dulwich/refs.py dulwich-0.13.0/dulwich/refs.py
---- dulwich-0.13.0-orig/dulwich/refs.py	2018-10-09 09:42:38.182597268 +0200
-+++ dulwich-0.13.0/dulwich/refs.py	2018-10-09 09:43:39.057145566 +0200
-@@ -509,7 +509,7 @@ class DiskRefsContainer(RefsContainer):
-                     # Read only the first 40 bytes
-                     return header + f.read(40 - len(SYMREF))
-         except IOError as e:
--            if e.errno == errno.ENOENT:
-+            if e.errno in (errno.ENOENT, errno.EISDIR):
-                 return None
-             raise
-
diff --git a/pkgs/patches/git/docbook2texi.patch b/pkgs/patches/git/docbook2texi.patch
deleted file mode 100644
--- a/pkgs/patches/git/docbook2texi.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-This patch does two things: (1) use the right name for `docbook2texi',
-and (2) make sure `gitman.info' isn't produced since it's broken (duplicate
-node names).
-
-diff --git a/Documentation/Makefile b/Documentation/Makefile
-index 26a2342bea..ceccd67ebb 100644
---- a/Documentation/Makefile
-+++ b/Documentation/Makefile
-@@ -132,7 +132,7 @@ HTML_REPO = ../../git-htmldocs
-
- MAKEINFO = makeinfo
- INSTALL_INFO = install-info
--DOCBOOK2X_TEXI = docbook2x-texi
-+DOCBOOK2X_TEXI = docbook2texi
- DBLATEX = dblatex
- ASCIIDOC_DBLATEX_DIR = /etc/asciidoc/dblatex
- DBLATEX_COMMON = -p $(ASCIIDOC_DBLATEX_DIR)/asciidoc-dblatex.xsl -s $(ASCIIDOC_DBLATEX_DIR)/asciidoc-dblatex.sty
-@@ -250,7 +250,7 @@ man1: $(DOC_MAN1)
- man5: $(DOC_MAN5)
- man7: $(DOC_MAN7)
-
--info: git.info gitman.info
-+info: git.info
-
- pdf: user-manual.pdf
-
-@@ -266,10 +266,9 @@ install-man: man
-
- install-info: info
- 	$(INSTALL) -d -m 755 $(DESTDIR)$(infodir)
--	$(INSTALL) -m 644 git.info gitman.info $(DESTDIR)$(infodir)
-+	$(INSTALL) -m 644 git.info $(DESTDIR)$(infodir)
- 	if test -r $(DESTDIR)$(infodir)/dir; then \
- 	  $(INSTALL_INFO) --info-dir=$(DESTDIR)$(infodir) git.info ;\
--	  $(INSTALL_INFO) --info-dir=$(DESTDIR)$(infodir) gitman.info ;\
- 	else \
- 	  echo "No directory found in $(DESTDIR)$(infodir)" >&2 ; \
- 	fi
diff --git a/pkgs/patches/git/git-send-email-honor-PATH.patch b/pkgs/patches/git/git-send-email-honor-PATH.patch
deleted file mode 100644
--- a/pkgs/patches/git/git-send-email-honor-PATH.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt
-index 1afe9fc858..05dd7c3a90 100644
---- a/Documentation/git-send-email.txt
-+++ b/Documentation/git-send-email.txt
-@@ -215,8 +215,7 @@ a password is obtained using 'git-credential'.
- 	specify a full pathname of a sendmail-like program instead;
- 	the program must support the `-i` option.  Default value can
- 	be specified by the `sendemail.smtpServer` configuration
--	option; the built-in default is to search for `sendmail` in
--	`/usr/sbin`, `/usr/lib` and $PATH if such program is
-+	option; the built-in default is to search in $PATH if such program is
- 	available, falling back to `localhost` otherwise.
-
- --smtp-server-port=<port>::
-diff --git a/git-send-email.perl b/git-send-email.perl
-index 8eb63b5a2f..74a61d8213 100755
---- a/git-send-email.perl
-+++ b/git-send-email.perl
-@@ -956,8 +956,7 @@ sub expand_one_alias {
- }
-
- if (!defined $smtp_server) {
--	my @sendmail_paths = qw( /usr/sbin/sendmail /usr/lib/sendmail );
--	push @sendmail_paths, map {"$_/sendmail"} split /:/, $ENV{PATH};
-+	my @sendmail_paths = map {"$_/sendmail"} split /:/, $ENV{PATH};
- 	foreach (@sendmail_paths) {
- 		if (-x $_) {
- 			$smtp_server = $_;
diff --git a/pkgs/patches/git/git-sh-i18n.patch b/pkgs/patches/git/git-sh-i18n.patch
deleted file mode 100644
--- a/pkgs/patches/git/git-sh-i18n.patch
+++ /dev/null
@@ -1,23 +0,0 @@
-diff --git a/git-sh-i18n.sh b/git-sh-i18n.sh
-index e1d917fd27..e90f8e1414 100644
---- a/git-sh-i18n.sh
-+++ b/git-sh-i18n.sh
-@@ -26,7 +26,7 @@ then
- elif test -n "$GIT_INTERNAL_GETTEXT_TEST_FALLBACKS"
- then
- 	: no probing necessary
--elif type gettext.sh >/dev/null 2>&1
-+elif type @gettext@/bin/gettext.sh >/dev/null 2>&1
- then
- 	# GNU libintl's gettext.sh
- 	GIT_INTERNAL_GETTEXT_SH_SCHEME=gnu
-@@ -43,7 +43,8 @@ export GIT_INTERNAL_GETTEXT_SH_SCHEME
- case "$GIT_INTERNAL_GETTEXT_SH_SCHEME" in
- gnu)
- 	# Use libintl's gettext.sh, or fall back to English if we can't.
--	. gettext.sh
-+	. @gettext@/bin/gettext.sh
-+	export PATH=@gettext@/bin:$PATH
- 	;;
- gettext_without_eval_gettext)
- 	# Solaris has a gettext(1) but no eval_gettext(1)
diff --git a/pkgs/patches/git/installCheck-path.patch b/pkgs/patches/git/installCheck-path.patch
deleted file mode 100644
--- a/pkgs/patches/git/installCheck-path.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/t/test-lib.sh b/t/test-lib.sh
-index 8665b0a9b6..8bb892b1af 100644
---- a/t/test-lib.sh
-+++ b/t/test-lib.sh
-@@ -1227,7 +1227,7 @@ elif test -n "$GIT_TEST_INSTALLED"
- then
- 	GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
- 	error "Cannot run git from $GIT_TEST_INSTALLED."
--	PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR/t/helper:$PATH
-+	PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR/t/helper:$GIT_BUILD_DIR:$PATH
- 	GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
- else # normal case, use ../bin-wrappers only unless $with_dashes:
- 	if test -n "$no_bin_wrappers"
diff --git a/pkgs/patches/git/ssh-path.patch b/pkgs/patches/git/ssh-path.patch
deleted file mode 100644
--- a/pkgs/patches/git/ssh-path.patch
+++ /dev/null
@@ -1,26 +0,0 @@
-diff --git a/connect.c b/connect.c
-index 4813f005ab..b3f12f3268 100644
---- a/connect.c
-+++ b/connect.c
-@@ -1183,7 +1183,7 @@ static void fill_ssh_args(struct child_process *conn, const char *ssh_host,
-
- 		ssh = getenv("GIT_SSH");
- 		if (!ssh)
--			ssh = "ssh";
-+			ssh = "@ssh@";
- 		variant = determine_ssh_variant(ssh, 0);
- 	}
-
-diff --git a/git-gui/lib/remote_add.tcl b/git-gui/lib/remote_add.tcl
-index 480a6b30d0..7817204241 100644
---- a/git-gui/lib/remote_add.tcl
-+++ b/git-gui/lib/remote_add.tcl
-@@ -139,7 +139,7 @@ method _add {} {
- 		# Parse the location
- 		if { [regexp {(?:git\+)?ssh://([^/]+)(/.+)} $location xx host path]
- 		     || [regexp {([^:][^:]+):(.+)} $location xx host path]} {
--			set ssh ssh
-+			set ssh @ssh@
- 			if {[info exists env(GIT_SSH)]} {
- 				set ssh $env(GIT_SSH)
- 			}
diff --git a/pkgs/python-packages-overrides.nix b/pkgs/python-packages-overrides.nix
deleted file mode 100644
--- a/pkgs/python-packages-overrides.nix
+++ /dev/null
@@ -1,112 +0,0 @@
-# Overrides for the generated python-packages.nix
-#
-# This function is intended to be used as an extension to the generated file
-# python-packages.nix. The main objective is to add needed dependencies of C
-# libraries and tweak the build instructions where needed.
-
-{ pkgs
-, basePythonPackages
-}:
-
-let
-  sed = "sed -i";
-
-in
-
-self: super: {
-
-  "cffi" = super."cffi".override (attrs: {
-    buildInputs = with self; attrs.buildInputs ++ [
-      pkgs.libffi
-    ];
-  });
-
-  "dogpile.cache" = super."dogpile.cache".override (attrs: {
-    # dogpile wants to be both a regular module and namespace package
-    postPatch = ''
-      rm dogpile/core.py
-      substituteInPlace dogpile/cache/__init__.py \
-        --replace "from .. import __version__" "__version__ = '0.9.0'"
-      substituteInPlace dogpile/cache/region.py \
-        --replace "from . " "from dogpile.cache " \
-        --replace "from .. " "from dogpile.lock "
-    '';
-  });
-
-  "gevent" = super."gevent".override (attrs: {
-    propagatedBuildInputs = with self; attrs.propagatedBuildInputs ++ [
-      # NOTE: (marcink) odd requirements from gevent aren't set properly,
-      # thus we need to inject psutil manually
-      self."psutil"
-    ];
-  });
-
-  "hgsubversion" = super."hgsubversion".override (attrs: {
-    propagatedBuildInputs = attrs.propagatedBuildInputs ++ [
-      pkgs.sqlite
-      #basePythonPackages.sqlite3
-      self.mercurial
-    ];
-  });
-
-  "subvertpy" = super."subvertpy".override (attrs: {
-    SVN_PREFIX = "${pkgs.subversion.dev}";
-    nativeBuildInputs = with self; attrs.nativeBuildInputs ++ [
-      pkgs.apr.dev
-      pkgs.aprutil
-      pkgs.subversionrc
-    ];
-    buildInputs = with self; attrs.buildInputs ++ [
-      pkgs.subversionrc
-    ];
-  });
-
-  "mercurial" = super."mercurial".override (attrs: {
-    nativeBuildInputs = with self; attrs.nativeBuildInputs ++ [
-      # self.python.modules.curses
-    ];
-    postInstall = ''
-      rm -f $out/${self.python.sitePackages}/hgext3rd/__pycache__/__init__.*.pyc
-    '';
-  });
-
-  "hg-evolve" = super."hg-evolve".override (attrs: {
-    postInstall = ''
-      rm -f $out/${self.python.sitePackages}/hgext3rd/__init__.py
-      rm -f $out/${self.python.sitePackages}/hgext3rd/__init__.pyc
-    '';
-  });
-
-  "dulwich" = super."dulwich".override (attrs: {
-    patches = [
-      ./patches/dulwich/handle-dir-refs.patch
-    ];
-  });
-
-  "pygit2" = super."pygit2".override (attrs: {
-    nativeBuildInputs = with self; attrs.nativeBuildInputs ++ [
-      pkgs.libffi
-      pkgs.libgit2rc
-    ];
-    buildInputs = with self; attrs.buildInputs ++ [
-      pkgs.libgit2rc
-    ];
-  });
-
-  "py" = super."py".override (attrs: {
-    buildInputs = with self; attrs.buildInputs ++ [
-      self."setuptools-scm"
-    ];
-  });
-
-  "zipp" = super."zipp".override (attrs: {
-    buildInputs = with self; attrs.buildInputs ++ [
-      self."toml"
-    ];
-  });
-
-  # Avoid that base packages screw up the build process
-  inherit (basePythonPackages)
-    setuptools;
-
-}
diff --git a/pkgs/python-packages.nix b/pkgs/python-packages.nix
deleted file mode 100644
--- a/pkgs/python-packages.nix
+++ /dev/null
@@ -1,1226 +0,0 @@
-# Generated by pip2nix 0.9.0
-# See https://github.com/nix-community/pip2nix
-
-{ pkgs, fetchurl, fetchgit, fetchhg }:
-
-self: super: {
-  "atomicwrites" = super.buildPythonPackage rec {
-    pname = "atomicwrites";
-    version = "1.4.0";
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/55/8d/74a75635f2c3c914ab5b3850112fd4b0c8039975ecb320e4449aa363ba54/atomicwrites-1.4.0.tar.gz";
-      sha256 = "0yla2svfhfqrcj8qbyqzx7wi4jy0dwcxvlkg0k3zjd54s5m3jw5f";
-    };
-    format = "setuptools";
-    doCheck = false;
-    buildInputs = [];
-    checkInputs = [];
-    nativeBuildInputs = [];
-    propagatedBuildInputs = [];
-    meta = {
-      license = [ pkgs.lib.licenses.mit ];
-    };
-  };
-  "attrs" = super.buildPythonPackage rec {
-    pname = "attrs";
-    version = "19.3.0";
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/98/c3/2c227e66b5e896e15ccdae2e00bbc69aa46e9a8ce8869cc5fa96310bf612/attrs-19.3.0.tar.gz";
-      sha256 = "0wky4h28n7xnr6xv69p9z6kv8bzn50d10c3drmd9ds8gawbcxdzp";
-    };
-    format = "setuptools";
-    doCheck = false;
-    buildInputs = [];
-    checkInputs = [];
-    nativeBuildInputs = [
-      self."setuptools"
-      self."wheel"
-    ];
-    propagatedBuildInputs = [];
-    meta = {
-      license = [ pkgs.lib.licenses.mit ];
-    };
-  };
-  "beautifulsoup4" = super.buildPythonPackage rec {
-    pname = "beautifulsoup4";
-    version = "4.6.3";
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/88/df/86bffad6309f74f3ff85ea69344a078fc30003270c8df6894fca7a3c72ff/beautifulsoup4-4.6.3.tar.gz";
-      sha256 = "041dhalzjciw6qyzzq7a2k4h1yvyk76xigp35hv5ibnn448ydy4h";
-    };
-    format = "setuptools";
-    doCheck = false;
-    buildInputs = [];
-    checkInputs = [];
-    nativeBuildInputs = [];
-    propagatedBuildInputs = [];
-    meta = {
-      license = [ pkgs.lib.licenses.mit ];
-    };
-  };
-  "cached-property" = super.buildPythonPackage rec {
-    pname = "cached-property";
-    version = "1.5.1";
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/57/8e/0698e10350a57d46b3bcfe8eff1d4181642fd1724073336079cb13c5cf7f/cached-property-1.5.1.tar.gz";
-      sha256 = "010m1bl380l2r3vwq24r5v14l6gwvgm9v0mqqjkjss552jgsa5wj";
-    };
-    format = "setuptools";
-    doCheck = false;
-    buildInputs = [];
-    checkInputs = [];
-    nativeBuildInputs = [];
-    propagatedBuildInputs = [];
-    meta = {
-      license = [ pkgs.lib.licenses.bsdOriginal ];
-    };
-  };
-  "cffi" = super.buildPythonPackage rec {
-    pname = "cffi";
-    version = "1.14.0";
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/05/54/3324b0c46340c31b909fcec598696aaec7ddc8c18a63f2db352562d3354c/cffi-1.14.0.tar.gz";
-      sha256 = "1dn279gw5ql8i5n3s5v4rnv96rhhjjfn7xq729qbl5bs2954yf1d";
-    };
-    format = "setuptools";
-    doCheck = false;
-    buildInputs = [];
-    checkInputs = [];
-    nativeBuildInputs = [];
-    propagatedBuildInputs = [
-      self."pycparser"
-    ];
-    meta = {
-      license = [ pkgs.lib.licenses.mit ];
-    };
-  };
-  "configobj" = super.buildPythonPackage rec {
-    pname = "configobj";
-    version = "5.0.6";
-    src = fetchurl {
-      url = "https://code.rhodecode.com/upstream/configobj/artifacts/download/0-012de99a-b1e1-4f64-a5c0-07a98a41b324.tar.gz?md5=6a513f51fe04b2c18cf84c1395a7c626";
-      sha256 = "0kqfrdfr14mw8yd8qwq14dv2xghpkjmd3yjsy8dfcbvpcc17xnxp";
-    };
-    format = "setuptools";
-    doCheck = false;
-    buildInputs = [];
-    checkInputs = [];
-    nativeBuildInputs = [];
-    propagatedBuildInputs = [
-      self."six"
-    ];
-    meta = {
-      license = [ pkgs.lib.licenses.bsdOriginal ];
-    };
-  };
-  "contextlib2" = super.buildPythonPackage rec {
-    pname = "contextlib2";
-    version = "0.6.0.post1";
-    src = fetchurl {
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-    checkInputs = [];
-    nativeBuildInputs = [];
-    propagatedBuildInputs = [
-      self."setuptools"
-    ];
-    meta = {
-      license = [ pkgs.lib.licenses.zpl21 ];
-    };
-  };
-  "zope.interface" = super.buildPythonPackage rec {
-    pname = "zope.interface";
-    version = "5.1.0";
-    src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/af/d2/9675302d7ced7ec721481f4bbecd28a390a8db4ff753d28c64057b975396/zope.interface-5.1.0.tar.gz";
-      sha256 = "03nrl6b8cb600dnnh46y149awvrm0gxyqgwq5hdw3lvys8mw9r20";
-    };
-    format = "setuptools";
-    doCheck = false;
-    buildInputs = [];
-    checkInputs = [];
-    nativeBuildInputs = [];
-    propagatedBuildInputs = [
-      self."setuptools"
-    ];
-    meta = {
-      license = [ pkgs.lib.licenses.zpl21 ];
-    };
-  };
-}
diff --git a/pkgs/shell-generate.nix b/pkgs/shell-generate.nix
deleted file mode 100755
--- a/pkgs/shell-generate.nix
+++ /dev/null
@@ -1,62 +0,0 @@
-{ pkgs ? (import <nixpkgs> {})
-, pythonPackages ? "python38Packages"
-}:
-
-with pkgs.lib;
-
-let
-  _pythonPackages = pythonPackages;
-
-in
-
-let
-  pythonPackages = getAttr _pythonPackages pkgs;
-
-  pip2nix = import ./nix-common/pip2nix.nix {
-    inherit
-      pkgs
-      pythonPackages;
-  };
-
-in
-
-pkgs.stdenv.mkDerivation {
-  name = "pip2nix-generated";
-
-  buildInputs = [
-    # Allows to generate python packages
-    pip2nix.pip2nix
-    pip2nix.pip
-    pip2nix.pip-tools
-    pip2nix.cython
-    pip2nix.flit
-
-    # compile using ffi
-    pkgs.libffi
-
-    pkgs.apr
-    pkgs.aprutil
-  ];
-
-  shellHook = ''
-    runHook preShellHook
-    echo "Setting SVN_* variables"
-    export SVN_LIBRARY_PATH=${pkgs.subversion}/lib
-    export SVN_HEADER_PATH=${pkgs.subversion.dev}/include
-    runHook postShellHook
-  '';
-
-  preShellHook = ''
-    echo "Starting Generate Shell"
-    # set unpack source date to 1980 to fix ZIP problems that does not support <1980
-    export SOURCE_DATE_EPOCH=315532800
-    export TMPDIR=/tmp
-    export LOCALE_ARCHIVE="${pkgs.glibcLocales}/lib/locale/locale-archive"
-    export LC_ALL="en_US.UTF-8"
-    export PYCURL_SSL_LIBRARY=openssl
-
-    # Custom prompt to distinguish from other dev envs.
-    export PS1="\n\[\033[1;32m\][pip2nix-generate-shell]$\[\033[0m\] "
-
-  '';
-}
diff --git a/release.nix b/release.nix
deleted file mode 100644
--- a/release.nix
+++ /dev/null
@@ -1,22 +0,0 @@
-# This file defines how to "build" for packaging.
-
-{ pkgs ? import <nixpkgs> {}
-, system ? builtins.currentSystem
-, doCheck ? false
-}:
-
-let
-  vcsserver = import ./default.nix {
-    inherit
-      doCheck
-      system;
-
-    # disable checkPhase for build
-    checkPhase = ''
-    '';
-
-  };
-
-in {
-  build = vcsserver;
-}
diff --git a/shell.nix b/shell.nix
deleted file mode 100644
--- a/shell.nix
+++ /dev/null
@@ -1,50 +0,0 @@
-# This file contains the adjustments which are desired for a development
-# environment.
-
-{ pkgs ? (import <nixpkgs> {})
-, pythonPackages ? "python38Packages"
-, doCheck ? false
-}:
-
-let
-
-  # Full runtime environment without the actual Python package
-  PythonDepsEnv = import ./default.nix {
-    inherit
-      doCheck;
-    pythonExternalOverrides = self: super: {
-      rhodecode-vcsserver = null;
-    };
-  };
-
-  # The python package with full runtime environment as dependency for nix-shell
-  package = (import ./default.nix {
-    inherit
-      doCheck;
-    pythonExternalOverrides = self: super: {
-      rhodecode-vcsserver = super.rhodecode-vcsserver.overridePythonAttrs(attrs: {
-        nativeBuildInputs = with self;
-          attrs.nativeBuildInputs ++
-          attrs.buildInputs ++
-          attrs.propagatedBuildInputs ++ [
-          PythonDepsEnv
-          pytest
-          ipdb
-          ipython
-        ];
-      });
-    };
-  }).passthru.pythonPackages.rhodecode-vcsserver;
-
-in package.overridePythonAttrs(attrs: {
-  postShellHook= ''
-    # Custom prompt to distinguish from other dev envs.
-    export PS1="\n\[\033[1;32m\][vcsserver-shell:\w]$\[\033[0m\] "
-
-    # Set locale
-    export LOCALE_ARCHIVE="${pkgs.glibcLocales}/lib/locale/locale-archive"
-    export LC_ALL="en_US.UTF-8"
-
-  '';
-
-})