diff --git a/.envrc b/.envrc
index 2ea806a..e30d6a1 100644
--- a/.envrc
+++ b/.envrc
@@ -4,15 +4,12 @@ BIN_DIR="$(git rev-parse --show-toplevel)/bin"
 export PATH="$BIN_DIR:$PATH"
 
 _u_bzl=https://github.com/bazelbuild/bazelisk/releases/download/v1.12.0/bazelisk-
-_u_bldf=https://github.com/bazelbuild/buildtools/releases/download/5.1.0/buildifier-
 
 if [[ "${PRINT_TOOL_HASHES:-no}" = "yes" ]]; then
     for os in linux darwin; do
         for arch in amd64 arm64; do
             hash_bzl=$(direnv fetchurl "${_u_bzl}$os-$arch")
-            hash_bldf=$(direnv fetchurl "${_u_bldf}$os-$arch")
             echo -e "bzl:  $os-$arch\t$hash_bzl"
-            echo -e "bldf: $os-$arch\t$hash_bldf"
         done
     done
 fi
@@ -22,19 +19,15 @@ fi
 case "$(uname | tr A-Z a-z)-$(uname -m)" in
     linux-x86_64)
         bzl=$(direnv fetchurl "${_u_bzl}linux-amd64" sha256-awvLLqFbyhb/+r5v2nWANEA3U1TAhUgP42HSy/MlAds=)
-        bldf=$(direnv fetchurl "${_u_bldf}linux-amd64" sha256-Ur9rECy0+IRk4ZfKrAbWl5P6KwX1rVCn579vvWVmSKM=)
         ;;
     linux-aarch64)
         bzl=$(direnv fetchurl "${_u_bzl}linux-arm64" sha256-KdhhykjfJKPo3sV/sAUIumZKMZIQR7JobDjPmiDUY58=)
-        bldf=$(direnv fetchurl "${_u_bldf}linux-arm64" sha256-kX1ZnbsEDmOuen4a23ENIFeBGQL9yeNczpJev9lm7rg=)
         ;;
     darwin-x86_64)
         bzl=$(direnv fetchurl "${_u_bzl}darwin-amd64" sha256-cM9/50gI0WQY03H+uMzU58RCFdsD0sT/x1t2e3ZUCfs=)
-        bldf=$(direnv fetchurl "${_u_bldf}darwin-amd64" sha256-yTeNn0KT/DjsVKCPvHTnqdKJFNrmiRM0QB5Z849uZdw=)
         ;;
     darwin-arm64)
         bzl=$(direnv fetchurl "${_u_bzl}darwin-arm64" sha256-NFu4uQDWue90I06enkE67Tj7Ke8lXkrhisYb9KYQLYQ=)
-        bldf=$(direnv fetchurl "${_u_bldf}darwin-arm64" sha256-dF/rXqlstv85p2soIcV1kf1wtSgyVWJIbUe10IkA4uQ=)
         ;;
     *)
         >&2 echo "unsupported architecture tuple $(uname | tr A-Z a-z)-$(uname -m)"
@@ -42,4 +35,3 @@ case "$(uname | tr A-Z a-z)-$(uname -m)" in
 esac
 
 ln -sf "${bzl}" "$BIN_DIR/bazel"
-ln -sf "${bldf}" "$BIN_DIR/buildifier"
diff --git a/BUILD b/BUILD
index 5301051..38102d7 100644
--- a/BUILD
+++ b/BUILD
@@ -1,4 +1,4 @@
-NTESTS=16
+NTESTS=64
 
 [
     cc_binary(
diff --git a/README.md b/README.md
index d580c6d..cc95a32 100644
--- a/README.md
+++ b/README.md
@@ -7,43 +7,28 @@ reproduces that.
 Steps to reproduce
 ------------------
 
-llvm14: 10-11 seconds to compile 96 binaries on an 8-core machine:
+llvm14: 12-13 seconds to compile 64 binaries on an 8-core machine:
 
 ```
 $ bazel clean; bazel shutdown; bazel build --extra_toolchains=@llvm_toolchain//:cc-toolchain-x86_64-linux ...
 INFO: Starting clean (this may take a while). Consider using --async if the clean takes more than several minutes.
 Starting local Bazel server and connecting to it...
-INFO: Analyzed 96 targets (41 packages loaded, 1458 targets configured).
-INFO: Found 96 targets...
-INFO: Elapsed time: 10.725s, Critical Path: 0.66s
-INFO: 481 processes: 289 internal, 192 linux-sandbox.
-INFO: Build completed successfully, 481 total actions
+INFO: Analyzed 64 targets (41 packages loaded, 1426 targets configured).
+INFO: Found 64 targets...
+INFO: Elapsed time: 12.454s, Critical Path: 1.11s
+INFO: 321 processes: 193 internal, 128 linux-sandbox.
+INFO: Build completed successfully, 321 total actions
 ```
 
-zig cc: 3.5 minutes. Anecdotally when looking at `htop` looks like it does not
-parallelize at all:
+zig cc: 2,5 minutes:
 
 ```
 $ bazel clean; bazel shutdown; bazel build  --platforms=@zig_sdk//libc_aware/platform:linux_amd64_gnu.2.28 ...
 INFO: Starting clean (this may take a while). Consider using --async if the clean takes more than several minutes.
 Starting local Bazel server and connecting to it...
-INFO: Analyzed 96 targets (41 packages loaded, 14394 targets configured).
-INFO: Found 96 targets...
-INFO: Elapsed time: 214.333s, Critical Path: 18.31s
-INFO: 385 processes: 193 internal, 192 linux-sandbox.
-INFO: Build completed successfully, 385 total actions
-```
-
-Move sandbox to `/dev/shm` and reuse the sandboxes: 3 minutes and a bit.
-
-```
-$ bazel clean; bazel shutdown; bazel build --sandbox_base=/dev/shm --experimental_reuse_sandbox_directories  --platforms=@zig_sdk//libc_aware/platform:linux_amd64_gnu.2.28 ...
-INFO: Starting clean (this may take a while). Consider using --async if the clean takes more than several minutes.
-Starting local Bazel server and connecting to it...
-INFO: Analyzed 96 targets (41 packages loaded, 14394 targets configured).
-INFO: Found 96 targets...
-INFO: Elapsed time: 194.643s, Critical Path: 25.35s
-INFO: 385 processes: 193 internal, 192 linux-sandbox.
-INFO: Build completed successfully, 385 total actions
-motiejus@motiejus-20NYS8QG0B:/code/test-zigcc$
+INFO: Analyzed 64 targets (41 packages loaded, 14450 targets configured).
+INFO: Found 64 targets...
+INFO: Elapsed time: 142.264s, Critical Path: 20.65s
+INFO: 257 processes: 129 internal, 128 linux-sandbox.
+INFO: Build completed successfully, 257 total actions
 ```