diff --git a/etc/soft/nvim/template/sh.vim b/etc/soft/nvim/template/sh.vim
index a29712e..c9cf27c 100755
--- a/etc/soft/nvim/template/sh.vim
+++ b/etc/soft/nvim/template/sh.vim
@@ -11,7 +11,7 @@ trap stacktrace ERR
 
 IFS=$' \t\n'
 
-function stacktrace () {
+function stacktrace() {
 	[ -n "$TRACED" ] && return
 
 	local depth=${#FUNCNAME[@]}
@@ -26,3 +26,16 @@ function stacktrace () {
 	TRACED=true
 }
 
+function die() {
+	echo "$@" >&2
+	exit 1
+}
+
+[[ "${BASH_VERSION[0]}" -lt 5 ]] && die "ERROR: Bash >= 5 required."
+
+DEPENDENCIES=()
+
+for dependency in "${DEPENDENCIES[@]}"; do
+	command -V "$dependency" 2>&- || die "ERROR: Command $dependency not found."
+done
+