Improve local development (#3661)

scripts/start-setupServerProperties

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # shellcheck source=start-utils
-. "${SCRIPTS:-/}start-utils"
+. "$(dirname "$0")/start-utils"
 
 : "${SERVER_PROPERTIES:=/data/server.properties}"
 : "${OVERRIDE_SERVER_PROPERTIES:=true}"
@@ -179,4 +179,4 @@ if isTrue "${DUMP_SERVER_PROPERTIES:-false}"; then
   cat "${SERVER_PROPERTIES}"
 fi
 
-exec "${SCRIPTS:-/}start-setupEnvVariables" "$@"
+exec "$(dirname "$0")/start-setupEnvVariables" "$@"