My god! You mite as well leve your devices out in the street, with know passwords on them and ask members of the public to take what files thay would like! "Roll up Roll up! Here's all my data, fore you good people. come come, get what you want! come it'sa free for all!"

use the mini build

ftp://ftp.dd-wrt.com/betas/2019/01-29-2019-r38507/broadcom/ dd-wrt.v24_mini_wrt54g