diff --git a/artiq-board-generated/artiq-board.nix b/artiq-board-generated/artiq-board.nix
index 710c84e..9eac751 100644
--- a/artiq-board-generated/artiq-board.nix
+++ b/artiq-board-generated/artiq-board.nix
@@ -12,7 +12,7 @@ let
     jinja2 jsonschema numpy artiqpkgs.migen artiqpkgs.microscope artiqpkgs.misoc artiqpkgs.jesd204b artiqpkgs.artiq
   ]);
   fetchcargo = import (artiq-fast + "/fetchcargo.nix") {
-    inherit (pkgs) stdenv cacert git;
+    inherit (pkgs) stdenv lib cacert git;
     inherit (artiqpkgs) cargo cargo-vendor;
   };
   cargoDeps = fetchcargo rec {
diff --git a/artiq-fast/artiq-board.nix b/artiq-fast/artiq-board.nix
index 788df7f..a7f312a 100644
--- a/artiq-fast/artiq-board.nix
+++ b/artiq-fast/artiq-board.nix
@@ -9,7 +9,7 @@ let
   artiqSrc = import ./pkgs/artiq-src.nix { fetchgit = pkgs.fetchgit; };
   artiqpkgs = import ./default.nix { inherit pkgs; };
   fetchcargo = import ./fetchcargo.nix {
-    inherit (pkgs) stdenv cacert git;
+    inherit (pkgs) stdenv lib cacert git;
     inherit (artiqpkgs) cargo cargo-vendor;
   };
   cargoDeps = fetchcargo rec {
diff --git a/artiq-fast/default.nix b/artiq-fast/default.nix
index 5dce39c..bd1cbb5 100644
--- a/artiq-fast/default.nix
+++ b/artiq-fast/default.nix
@@ -2,7 +2,7 @@
 with pkgs;
 let
   artiq6 = pkgs.lib.strings.versionAtLeast mainPackages.artiq.version "6.0";
-  pythonDeps = import ./pkgs/python-deps.nix { inherit (pkgs) stdenv fetchgit fetchFromGitHub python3Packages; misoc-new = artiq6; };
+  pythonDeps = import ./pkgs/python-deps.nix { inherit (pkgs) lib fetchgit fetchFromGitHub python3Packages; misoc-new = artiq6; };
 
   boards = [
     { target = "kasli"; variant = "tester"; }
@@ -25,7 +25,7 @@ let
     binutils-arm = callPackage ./pkgs/binutils.nix { platform = "arm"; target = "armv7-unknown-linux-gnueabihf"; };
     llvm-or1k = callPackage ./pkgs/llvm-or1k.nix {};
     rustc = callPackage ./pkgs/rust/rustc-with-crates.nix
-      ((stdenv.lib.optionalAttrs (stdenv.cc.isGNU && stdenv.hostPlatform.isi686) {
+      ((lib.optionalAttrs (stdenv.cc.isGNU && stdenv.hostPlatform.isi686) {
          stdenv = overrideCC stdenv gcc6; # with gcc-7: undefined reference to `__divmoddi4'
        }) //
        { inherit llvm-or1k; });
diff --git a/artiq-fast/fetchcargo.nix b/artiq-fast/fetchcargo.nix
index 498821d..5eacf77 100644
--- a/artiq-fast/fetchcargo.nix
+++ b/artiq-fast/fetchcargo.nix
@@ -1,4 +1,4 @@
-{ stdenv, cacert, git, cargo, cargo-vendor }:
+{ stdenv, lib, cacert, git, cargo, cargo-vendor }:
 { name, src, sha256 }:
 stdenv.mkDerivation {
   name = "${name}-vendor";
@@ -31,6 +31,6 @@ stdenv.mkDerivation {
   outputHashMode = "recursive";
   outputHash = sha256;
 
-  impureEnvVars = stdenv.lib.fetchers.proxyImpureEnvVars;
+  impureEnvVars = lib.fetchers.proxyImpureEnvVars;
   preferLocalBuild = true;
 }
diff --git a/artiq-fast/pkgs/artiq.nix b/artiq-fast/pkgs/artiq.nix
index 78be5a0..d60cbd8 100644
--- a/artiq-fast/pkgs/artiq.nix
+++ b/artiq-fast/pkgs/artiq.nix
@@ -36,7 +36,7 @@ python3Packages.buildPythonPackage rec {
   '';
 
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "A leading-edge control system for quantum information experiments";
     homepage = https://m-labs/artiq;
     license = licenses.lgpl3;
diff --git a/artiq-fast/pkgs/binutils.nix b/artiq-fast/pkgs/binutils.nix
index 50e326a..5f06028 100644
--- a/artiq-fast/pkgs/binutils.nix
+++ b/artiq-fast/pkgs/binutils.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages
+{ stdenv, lib, buildPackages
 , fetchurl, zlib
 , platform, target
 }:
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
       `gprof', `nm', `strip', etc.
     '';
     homepage = http://www.gnu.org/software/binutils/;
-    license = stdenv.lib.licenses.gpl3Plus;
+    license = lib.licenses.gpl3Plus;
     /* Give binutils a lower priority than gcc-wrapper to prevent a
        collision due to the ld/as wrappers/symlinks in the latter. */
     priority = "10";
diff --git a/artiq-fast/pkgs/llvm-or1k.nix b/artiq-fast/pkgs/llvm-or1k.nix
index b305485..5b7820d 100644
--- a/artiq-fast/pkgs/llvm-or1k.nix
+++ b/artiq-fast/pkgs/llvm-or1k.nix
@@ -1,4 +1,4 @@
-{ stdenv
+{ stdenv, lib
 , fetchFromGitHub, runCommand
 , perl, groff, cmake, libxml2, python, libffi, valgrind
 }:
@@ -30,7 +30,7 @@ in
     passthru.llvm-src = llvm-src;
     src = llvm-clang-src;
 
-    buildInputs = [ perl groff cmake libxml2 python libffi ] ++ stdenv.lib.optional stdenv.isLinux valgrind;
+    buildInputs = [ perl groff cmake libxml2 python libffi ] ++ lib.optional stdenv.isLinux valgrind;
 
     preBuild = ''
       NIX_BUILD_CORES=4
@@ -59,8 +59,8 @@ in
     meta = {
       description = "Collection of modular and reusable compiler and toolchain technologies";
       homepage = http://llvm.org/;
-      license = stdenv.lib.licenses.bsd3;
-      maintainers = with stdenv.lib.maintainers; [ sb0 ];
-      platforms = stdenv.lib.platforms.all;
+      license = lib.licenses.bsd3;
+      maintainers = with lib.maintainers; [ sb0 ];
+      platforms = lib.platforms.all;
     };
   }
diff --git a/artiq-fast/pkgs/llvmlite-artiq.nix b/artiq-fast/pkgs/llvmlite-artiq.nix
index 525eca6..81308e2 100644
--- a/artiq-fast/pkgs/llvmlite-artiq.nix
+++ b/artiq-fast/pkgs/llvmlite-artiq.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, llvm-or1k, makeWrapper, python3, ncurses, zlib, python3Packages }:
+{ stdenv, lib, fetchFromGitHub, llvm-or1k, makeWrapper, python3, ncurses, zlib, python3Packages }:
 python3Packages.buildPythonPackage rec {
   pname = "llvmlite-artiq";
   version = "0.23.0.dev";
@@ -13,7 +13,7 @@ python3Packages.buildPythonPackage rec {
 
   preBuild = "export LLVM_CONFIG=${llvm-or1k}/bin/llvm-config";
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
       description = "A lightweight LLVM python binding for writing JIT compilers";
       homepage    = "http://llvmlite.pydata.org/";
       maintainers = with maintainers; [ sb0 ];
diff --git a/artiq-fast/pkgs/openocd.nix b/artiq-fast/pkgs/openocd.nix
index 1864e1d..9d32c24 100644
--- a/artiq-fast/pkgs/openocd.nix
+++ b/artiq-fast/pkgs/openocd.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, autoreconfHook, libftdi, libusb1, pkgconfig, hidapi }:
+{ stdenv, lib, fetchFromGitHub, autoreconfHook, libftdi, libusb1, pkgconfig, hidapi }:
 
 stdenv.mkDerivation rec {
   pname = "openocd-mlabs";
@@ -55,7 +55,7 @@ stdenv.mkDerivation rec {
     cp ${bscan_spi_bitstreams}/*.bit "$out/share/bscan-spi-bitstreams"
   '';
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "Free and Open On-Chip Debugging, In-System Programming and Boundary-Scan Testing";
     longDescription = ''
       OpenOCD provides on-chip programming and debugging support with a layered
diff --git a/artiq-fast/pkgs/python-deps.nix b/artiq-fast/pkgs/python-deps.nix
index bf4de84..e6f3c36 100644
--- a/artiq-fast/pkgs/python-deps.nix
+++ b/artiq-fast/pkgs/python-deps.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchgit, fetchFromGitHub, python3Packages, misoc-new }:
+{ lib, fetchgit, fetchFromGitHub, python3Packages, misoc-new }:
 
 rec {
   # User dependencies
@@ -109,7 +109,7 @@ rec {
 
     propagatedBuildInputs = with python3Packages; [ pyserial jinja2 numpy asyncserial migen ];
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       description = "A high performance and small footprint system-on-chip based on Migen";
       homepage    = "https://m-labs.hk/migen";
       license     = licenses.bsd2;
@@ -130,7 +130,7 @@ rec {
 
     propagatedBuildInputs = with python3Packages; [ colorama ];
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       description = "A Python toolbox for building complex digital hardware";
       homepage    = "https://m-labs.hk/migen";
       license     = licenses.bsd2;
@@ -151,7 +151,7 @@ rec {
 
     propagatedBuildInputs = with python3Packages; [ pyserial prettytable msgpack migen ];
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       description = "Finding the bacteria in rotting FPGA designs";
       homepage    = "https://m-labs.hk/migen";
       license     = licenses.bsd2;
@@ -172,7 +172,7 @@ rec {
 
     propagatedBuildInputs = with python3Packages; [ migen misoc ];
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       description = "JESD204B core for Migen/MiSoC";
       homepage    = "https://m-labs.hk/migen";
       license     = licenses.bsd2;
@@ -189,7 +189,7 @@ rec {
       sha256 = "0j15i54p7nri6hkzn1wal9pxri4pgql01wgjccig6ar0v5jjbvsy";
     };
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       description = "Super-fast and clean conversions to numbers";
       homepage    = "https://github.com/SethMMorton/fastnumbers";
       license     = licenses.mit;
@@ -218,7 +218,7 @@ rec {
       export PBR_VERSION=0.0.1
     '';
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       description = "Ramda, ported to Python";
       homepage    = "https://github.com/peteut/ramda.py";
       license     = licenses.mit;
@@ -259,7 +259,7 @@ rec {
       export PBR_VERSION=0.0.1
     '';
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       description = "AXI support for Migen/MiSoC";
       homepage    = "https://github.com/peteut/migen-axi";
       license     = licenses.mit;
@@ -280,7 +280,7 @@ rec {
     # Non-standard test suite. Needs custom checkPhase.
     doCheck = false;
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       description = "Portable tool for executing LLVM and Clang style test suites";
       homepage = http://llvm.org/docs/CommandGuide/lit.html;
       license = licenses.ncsa;
@@ -299,7 +299,7 @@ rec {
     };
     prePatch = "echo ${version} > RELEASE-VERSION";
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       description = "A tool for checking tool output inspired by LLVM's FileCheck";
       homepage    = "https://github.com/stp/OutputCheck";
       license     = licenses.bsd3;
diff --git a/artiq-fast/pkgs/rust/binaryBuild.nix b/artiq-fast/pkgs/rust/binaryBuild.nix
index a40383d..c64a62f 100644
--- a/artiq-fast/pkgs/rust/binaryBuild.nix
+++ b/artiq-fast/pkgs/rust/binaryBuild.nix
@@ -1,4 +1,4 @@
-{ stdenv, makeWrapper, bash, buildRustPackage, curl, darwin
+{ stdenv, lib, makeWrapper, bash, buildRustPackage, curl, darwin
 , version
 , src
 , platform
@@ -6,7 +6,7 @@
 }:
 
 let
-  inherit (stdenv.lib) optionalString;
+  inherit (lib) optionalString;
   inherit (darwin.apple_sdk.frameworks) Security;
 
   bootstrapping = versionType == "bootstrap";
@@ -26,14 +26,14 @@ rec {
     inherit version;
     inherit src;
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       homepage = http://www.rust-lang.org/;
       description = "A safe, concurrent, practical language";
       maintainers = with maintainers; [ sb0 ];
       license = [ licenses.mit licenses.asl20 ];
     };
 
-    buildInputs = [ bash ] ++ stdenv.lib.optional stdenv.isDarwin Security;
+    buildInputs = [ bash ] ++ lib.optional stdenv.isDarwin Security;
 
     postPatch = ''
       patchShebangs .
@@ -60,7 +60,7 @@ rec {
         install_name_tool -change /usr/lib/libresolv.9.dylib '${darwin.libresolv}/lib/libresolv.9.dylib' "$out/bin/rustdoc"
         install_name_tool -change /usr/lib/libiconv.2.dylib '${darwin.libiconv}/lib/libiconv.2.dylib' "$out/bin/cargo"
         install_name_tool -change /usr/lib/libresolv.9.dylib '${darwin.libresolv}/lib/libresolv.9.dylib' "$out/bin/cargo"
-        install_name_tool -change /usr/lib/libcurl.4.dylib '${stdenv.lib.getLib curl}/lib/libcurl.4.dylib' "$out/bin/cargo"
+        install_name_tool -change /usr/lib/libcurl.4.dylib '${lib.getLib curl}/lib/libcurl.4.dylib' "$out/bin/cargo"
         for f in $out/lib/lib*.dylib; do
           install_name_tool -change /usr/lib/libresolv.9.dylib '${darwin.libresolv}/lib/libresolv.9.dylib' "$f"
         done
@@ -80,14 +80,14 @@ rec {
     inherit version;
     inherit src;
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       homepage = http://www.rust-lang.org/;
       description = "A safe, concurrent, practical language";
       maintainers = with maintainers; [ sb0 ];
       license = [ licenses.mit licenses.asl20 ];
     };
 
-    buildInputs = [ makeWrapper bash ] ++ stdenv.lib.optional stdenv.isDarwin Security;
+    buildInputs = [ makeWrapper bash ] ++ lib.optional stdenv.isDarwin Security;
 
     postPatch = ''
       patchShebangs .
@@ -107,7 +107,7 @@ rec {
       ${optionalString (stdenv.isDarwin && bootstrapping) ''
         install_name_tool -change /usr/lib/libiconv.2.dylib '${darwin.libiconv}/lib/libiconv.2.dylib' "$out/bin/cargo"
         install_name_tool -change /usr/lib/libresolv.9.dylib '${darwin.libresolv}/lib/libresolv.9.dylib' "$out/bin/cargo"
-        install_name_tool -change /usr/lib/libcurl.4.dylib '${stdenv.lib.getLib curl}/lib/libcurl.4.dylib' "$out/bin/cargo"
+        install_name_tool -change /usr/lib/libcurl.4.dylib '${lib.getLib curl}/lib/libcurl.4.dylib' "$out/bin/cargo"
       ''}
 
       wrapProgram "$out/bin/cargo" \
diff --git a/artiq-fast/pkgs/rust/cargo.nix b/artiq-fast/pkgs/rust/cargo.nix
index ae7d880..04f5fea 100644
--- a/artiq-fast/pkgs/rust/cargo.nix
+++ b/artiq-fast/pkgs/rust/cargo.nix
@@ -1,4 +1,4 @@
-{ stdenv, file, curl, pkgconfig, python, openssl, cmake, zlib
+{ stdenv, lib, file, curl, pkgconfig, python, openssl, cmake, zlib
 , makeWrapper, libiconv, cacert, rustPlatform, rustc, libgit2
 , fetchurl
 }:
@@ -52,7 +52,7 @@ rustPlatform.buildRustPackage rec {
   # Disable check phase as there are failures (4 tests fail)
   doCheck = false;
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = https://crates.io;
     description = "Downloads your Rust project's dependencies and builds your project";
     maintainers = with maintainers; [ wizeman retrry ];
diff --git a/artiq-fast/pkgs/rust/rustc.nix b/artiq-fast/pkgs/rust/rustc.nix
index 12e9df0..23e9bf4 100644
--- a/artiq-fast/pkgs/rust/rustc.nix
+++ b/artiq-fast/pkgs/rust/rustc.nix
@@ -1,4 +1,4 @@
-{ stdenv, targetPackages
+{ stdenv, lib, targetPackages
 , fetchurl, file, python2, tzdata, ps
 , llvm-or1k, ncurses, zlib, darwin, rustPlatform, git, cmake, curl
 , which, libffi, gdb
@@ -14,7 +14,7 @@
 }:
 
 let
-  inherit (stdenv.lib) optional optionalString;
+  inherit (lib) optional optionalString;
   inherit (darwin.apple_sdk.frameworks) Security;
 
   target = builtins.replaceStrings [" "] [","] (builtins.toString targets);
@@ -171,7 +171,7 @@ stdenv.mkDerivation {
   # https://github.com/rust-lang/rust/issues/30181
   # enableParallelBuilding = false;
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = https://www.rust-lang.org/;
     description = "A safe, concurrent, practical language";
     maintainers = with maintainers; [ sb0 ];
diff --git a/artiq-full/python-deps.nix b/artiq-full/python-deps.nix
index 0d2c77b..ab5bd86 100644
--- a/artiq-full/python-deps.nix
+++ b/artiq-full/python-deps.nix
@@ -14,7 +14,7 @@ rec {
     propagatedBuildInputs = with pkgs.python3Packages; [ svgwrite attrdict ];
     doCheck = false;
 
-    meta = with pkgs.stdenv.lib; {
+    meta = with pkgs.lib; {
       description = "WaveDrom compatible Python module and command line";
       homepage    = "https://pypi.org/project/wavedrom/";
       license     = licenses.mit;
@@ -34,7 +34,7 @@ rec {
     propagatedBuildInputs = [ wavedrom ] ++ (with pkgs.python3Packages; [ sphinx xcffib cairosvg ]);
     doCheck = false;
 
-    meta = with pkgs.stdenv.lib; {
+    meta = with pkgs.lib; {
       description = "A Sphinx extension that allows including WaveDrom diagrams";
       homepage    = "https://pypi.org/project/sphinxcontrib-wavedrom/";
       license     = licenses.mit;