It appears that the repository has undergone several changes and renamings:

backend/node_modules/.bin/sucrase-node

@@ -1,16 +0,0 @@
-#!/bin/sh
-basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
-
-case `uname` in
-    *CYGWIN*|*MINGW*|*MSYS*)
-        if command -v cygpath > /dev/null 2>&1; then
-            basedir=`cygpath -w "$basedir"`
-        fi
-    ;;
-esac
-
-if [ -x "$basedir/node" ]; then
-  exec "$basedir/node"  "$basedir/../sucrase/bin/sucrase-node" "$@"
-else 
-  exec node  "$basedir/../sucrase/bin/sucrase-node" "$@"
-fi