diff --git a/.cargo/config.toml b/.cargo/config.toml
index 3c9a9cf..10b6ce8 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,3 +1,7 @@
+[unstable]
+build-std = [ "std", "panic_abort" ]
+build-std-features = [ "panic_immediate_abort" ]
+
 [profile.release]
 strip = true  # strip symbols from the binary
 opt-level = "z" # optimize for size
diff --git a/build.sh b/build.sh
deleted file mode 100755
index 4049c85..0000000
--- a/build.sh
+++ /dev/null
@@ -1,35 +0,0 @@
-#!/bin/sh
-
-# Copyright (c) 2022 YAC
-# SPDX-License-Identifier: AGPL-3.0-or-later
-
-# This file is part of YAC coreutils.
-#
-# YAC coreutils is free software: you can redistribute it and/or modify it
-# under the terms of the GNU Affero General Public License as published by the
-# Free Software Foundation, either version 3 of the License, or (at your
-# option) any later version.
-# 
-# YAC coreutils is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
-# details.
-#
-# You should have received a copy of the GNU Affero General Public License
-# along with this program. If not, see https://www.gnu.org/licenses/.
-
-if ! test -n "$1"; then
-	printf "Usage: %s [target]\n" "$0" 1>&2
-	printf "For a list of targets, type 'rustc --print target-list'\n" 1>&2
-	exit 64 # sysexits(3) EX_USAGE
-fi
-
-if ! command -v cargo >/dev/null; then
-  printf "%s: Missing dependency: cargo(1)\n" "$0" 1>&2
-	exit 69 # syexits(3) EX_UNAVAILABLE
-fi
-
-cargo build --release \
-	-Z build-std=std,panic_abort \
-	-Z  build-std-features=panic_immediate_abort \
-	--target "$1"