diff --git a/scripts/start_port-macos.sh b/scripts/start_port-macos.sh
deleted file mode 100755
index da56887ff18fb..0000000000000
--- a/scripts/start_port-macos.sh
+++ /dev/null
@@ -1,86 +0,0 @@
-#!/usr/bin/env bash
-
-set -e
-
-if [ ! -d Mathlib ] ; then
-    echo "No Mathlib/ directory; are you at the root of the mathlib4 repo?"
-    exit 1
-fi
-
-if [ ! $1 ] ; then
-    echo "usage: ./scripts/start_port.sh Mathlib/Foo/Bar/Baz.lean"
-    exit 1
-fi
-
-case $1 in
-    Mathlib/*) true ;;
-    *) echo "argument must begin with Mathlib/"
-       exit 1 ;;
-esac
-
-if [ -f $1 ] ; then
-    echo "file already exists"
-    exit 1
-fi
-
-set -x
-set -o pipefail
-
-MATHLIB3PORT_BASE_URL=https://raw.githubusercontent.com/leanprover-community/mathlib3port/master
-PORT_STATUS_YAML=https://raw.githubusercontent.com/wiki/leanprover-community/mathlib/mathlib4-port-status.md
-TMP_FILE=start_port_tmp.lean
-
-mathlib4_path=$1
-mathlib4_mod=$(basename $(echo "$mathlib4_path" | tr / .) .lean)
-
-mathlib3port_url=$MATHLIB3PORT_BASE_URL/Mathbin/${1#Mathlib/}
-
-curl --silent --show-error --fail -o "$TMP_FILE" "$mathlib3port_url"
-
-mathlib3_module=$(grep '^! .*source module ' <"$TMP_FILE" | gsed 's/.*source module \(.*\)$/\1/')
-
-if curl --silent --show-error --fail "$PORT_STATUS_YAML" | grep -F "$mathlib3_module: " | grep "mathlib4#" ; then
-    set +x
-    echo "WARNING: The file is already in the process of being ported."
-    echo "(See line above for PR number.)"
-    rm "$TMP_FILE"
-    exit 1
-fi
-
-mkdir -p $(dirname "$mathlib4_path")
-mv "$TMP_FILE" "$mathlib4_path"
-
-git fetch
-mathlib4_mod_tail=${mathlib4_mod#Mathlib.}
-branch_name=port/${mathlib4_mod_tail}
-git checkout --no-track -b "$branch_name" origin/master
-
-# Empty commit with nice title. Ugsed by gh and hub to suggest PR title.
-git commit -m "feat: port $mathlib4_mod_tail" --allow-empty
-
-git add "$mathlib4_path"
-git commit -m 'Initial file copy from mathport'
-
-gsed -i 's/Mathbin\./Mathlib\./g' "$mathlib4_path"
-gsed -i '/^import/{s/[.]Gcd/.GCD/g; s/[.]Modeq/.ModEq/g; s/[.]Nary/.NAry/g; s/[.]Peq/.PEq/g; s/[.]Pfun/.PFun/g; s/[.]Pnat/.PNat/g; s/[.]Smul/.SMul/g; s/[.]Zmod/.ZMod/g}' "$mathlib4_path"
-
-# gawk script taken from https://github.com/leanprover-community/mathlib4/pull/1523
-gawk '{do {{if (match($0, "^  by$") && length(p) < 98 && (!(match(p, "^[ \t]*--.*$")))) {p=p " by";} else {if (NR!=1) {print p}; p=$0}}} while (getline == 1) if (getline==0) print p}' "$mathlib4_path" > "$mathlib4_path.tmp"
-mv "$mathlib4_path.tmp" "$mathlib4_path"
-
-(echo "import $mathlib4_mod" ; cat Mathlib.lean) | LC_ALL=C sort | uniq > Mathlib.lean.tmp
-mv -f Mathlib.lean.tmp Mathlib.lean
-
-git add Mathlib.lean "$mathlib4_path"
-git commit \
-	-m 'automated fixes' \
-	-m '' \
-	-m 'Mathbin -> Mathlib' \
-	-m 'fix certain import statements' \
-	-m 'move "by" to end of line' \
-	-m 'add import to Mathlib.lean'
-
-set +x
-
-echo "After pushing, you can open a PR at:"
-echo "https://github.com/leanprover-community/mathlib4/compare/$branch_name?expand=1&title=feat:+port+$mathlib4_mod_tail&labels=mathlib-port"