diff --git a/bash_it.sh b/bash_it.sh
index 59c6ed8e6f..527c9f537f 100755
--- a/bash_it.sh
+++ b/bash_it.sh
@@ -51,15 +51,6 @@ for _bash_it_config_file in $LIB; do
 	fi
 done
 
-# Load vendors
-BASH_IT_LOG_PREFIX="vendor: "
-for _bash_it_vendor_init in "${BASH_IT}"/vendor/init.d/*.bash; do
-	_log_debug "Loading \"$(basename "${_bash_it_vendor_init}" .bash)\"..."
-	# shellcheck disable=SC1090
-	source "${_bash_it_vendor_init}"
-done
-unset _bash_it_vendor_init
-
 BASH_IT_LOG_PREFIX="core: main: "
 # Load the global "enabled" directory
 # "family" param is empty so that files get sources in glob order
diff --git a/clean_files.txt b/clean_files.txt
index f4ab4b1969..1a6bac3313 100644
--- a/clean_files.txt
+++ b/clean_files.txt
@@ -82,6 +82,7 @@ completion/available/wpscan.completion.bash
 # libraries
 lib/helpers.bash
 lib/log.bash
+lib/preexec.bash
 lib/utilities.bash
 
 # plugins
@@ -165,4 +166,3 @@ themes/purity
 # vendor init files
 #
 vendor/.gitattributes
-vendor/init.d
diff --git a/lib/preexec.bash b/lib/preexec.bash
new file mode 100644
index 0000000000..d0d5b6da74
--- /dev/null
+++ b/lib/preexec.bash
@@ -0,0 +1,82 @@
+# shellcheck shell=bash
+# shellcheck disable=SC2034
+#
+# Load the `bash-preexec.sh` library, and define helper functions
+
+## Prepare, load, fix, and install `bash-preexec.sh`
+: "${PROMPT_COMMAND:=}"
+
+# Disable immediate `$PROMPT_COMMAND` modification
+__bp_delay_install="delayed"
+
+# shellcheck source-path=SCRIPTDIR/../vendor/github.com/rcaloras/bash-preexec
+source "${BASH_IT?}/vendor/github.com/rcaloras/bash-preexec/bash-preexec.sh"
+
+# Block damanaging user's `$HISTCONTROL`
+function __bp_adjust_histcontrol() { :; }
+
+# Don't fail on readonly variables
+function __bp_require_not_readonly() { :; }
+
+# Disable trap DEBUG on subshells - https://github.com/Bash-it/bash-it/pull/1040
+__bp_enable_subshells= # blank
+set +T
+
+# Modify `$PROMPT_COMMAND` now
+__bp_install_after_session_init
+
+## Helper functions
+function __check_precmd_conflict() {
+	local f
+	__bp_trim_whitespace f "${1?}"
+	! _bash-it-array-contains-element "${f}" "${precmd_functions[@]}"
+}
+
+function __check_preexec_conflict() {
+	local f
+	__bp_trim_whitespace f "${1?}"
+	! _bash-it-array-contains-element "${f}" "${preexec_functions[@]}"
+}
+
+function safe_append_prompt_command {
+	local prompt_re f
+	__bp_trim_whitespace f "${1?}"
+
+	if [ "${__bp_imported:-missing}" == "defined" ]; then
+		# We are using bash-preexec
+		if ! __check_precmd_conflict "${f}"; then
+			precmd_functions+=("${f}")
+		fi
+	else
+		# Set OS dependent exact match regular expression
+		if [[ ${OSTYPE} == darwin* ]]; then
+			# macOS
+			prompt_re="[[:<:]]${1}[[:>:]]"
+		else
+			# Linux, FreeBSD, etc.
+			prompt_re="\<${1}\>"
+		fi
+
+		if [[ ${PROMPT_COMMAND} =~ ${prompt_re} ]]; then
+			return
+		elif [[ -z ${PROMPT_COMMAND} ]]; then
+			PROMPT_COMMAND="${1}"
+		else
+			PROMPT_COMMAND="${1};${PROMPT_COMMAND}"
+		fi
+	fi
+}
+
+function safe_append_preexec {
+	local prompt_re f
+	__bp_trim_whitespace f "${1?}"
+
+	if [ "${__bp_imported:-missing}" == "defined" ]; then
+		# We are using bash-preexec
+		if ! __check_preexec_conflict "${f}"; then
+			preexec_functions+=("${f}")
+		fi
+	else
+		_log_error "${FUNCNAME[0]}: can't append to preexec hook because _bash-preexec.sh_ hasn't been loaded"
+	fi
+}
diff --git a/test/plugins/cmd-returned-notify.plugin.bats b/test/plugins/cmd-returned-notify.plugin.bats
old mode 100644
new mode 100755
index daf58330b3..6f3cf25a24
--- a/test/plugins/cmd-returned-notify.plugin.bats
+++ b/test/plugins/cmd-returned-notify.plugin.bats
@@ -2,7 +2,6 @@
 
 load ../test_helper
 load ../test_helper_libs
-load ../../vendor/init.d/preexec
 
 load ../../plugins/available/cmd-returned-notify.plugin
 
diff --git a/test/test_helper_libs.bash b/test/test_helper_libs.bash
index 57115e7e89..cc585fad29 100644
--- a/test/test_helper_libs.bash
+++ b/test/test_helper_libs.bash
@@ -4,3 +4,4 @@ load "${BASH_IT}/lib/log.bash"
 load "${BASH_IT}/lib/utilities.bash"
 load "${BASH_IT}/lib/helpers.bash"
 load "${BASH_IT}/lib/search.bash"
+load "${BASH_IT}/lib/preexec.bash"
diff --git a/themes/base.theme.bash b/themes/base.theme.bash
index 9e4a2562fa..a7e999617b 100644
--- a/themes/base.theme.bash
+++ b/themes/base.theme.bash
@@ -583,44 +583,6 @@ function aws_profile {
 	fi
 }
 
-function __check_precmd_conflict() {
-	local f
-	for f in "${precmd_functions[@]}"; do
-		if [[ "${f}" == "${1}" ]]; then
-			return 0
-		fi
-	done
-	return 1
-}
-
-function safe_append_prompt_command {
-	local prompt_re
-
-	if [ "${__bp_imported:-missing}" == "defined" ]; then
-		# We are using bash-preexec
-		if ! __check_precmd_conflict "${1}"; then
-			precmd_functions+=("${1}")
-		fi
-	else
-		# Set OS dependent exact match regular expression
-		if [[ ${OSTYPE} == darwin* ]]; then
-			# macOS
-			prompt_re="[[:<:]]${1}[[:>:]]"
-		else
-			# Linux, FreeBSD, etc.
-			prompt_re="\<${1}\>"
-		fi
-
-		if [[ ${PROMPT_COMMAND[*]:-} =~ ${prompt_re} ]]; then
-			return
-		elif [[ -z ${PROMPT_COMMAND} ]]; then
-			PROMPT_COMMAND="${1}"
-		else
-			PROMPT_COMMAND="${1};${PROMPT_COMMAND}"
-		fi
-	fi
-}
-
 function _save-and-reload-history() {
 	local autosave=${1:-0}
 	[[ $autosave -eq 1 ]] && history -a && history -c && history -r
diff --git a/vendor/init.d/preexec.bash b/vendor/init.d/preexec.bash
deleted file mode 100644
index 6cfa7b0abb..0000000000
--- a/vendor/init.d/preexec.bash
+++ /dev/null
@@ -1,25 +0,0 @@
-# shellcheck shell=bash
-# shellcheck disable=SC2034
-#
-# Load the `bash-preexec.sh` library, and define helper functions
-
-## Prepare, load, fix, and install `bash-preexec.sh`
-
-# Disable immediate `$PROMPT_COMMAND` modification
-__bp_delay_install="delayed"
-
-# shellcheck source-path=SCRIPTDIR/../github.com/rcaloras/bash-preexec
-source "${BASH_IT?}/vendor/github.com/rcaloras/bash-preexec/bash-preexec.sh"
-
-# Block damanaging user's `$HISTCONTROL`
-function __bp_adjust_histcontrol() { :; }
-
-# Don't fail on readonly variables
-function __bp_require_not_readonly() { :; }
-
-# Disable trap DEBUG on subshells - https://github.com/Bash-it/bash-it/pull/1040
-__bp_enable_subshells= # blank
-set +T
-
-# Modify `$PROMPT_COMMAND` now
-__bp_install_after_session_init