As discussed on the Element chat, the patch for the LibreRouter hardware watchdog is not present in OpenWrt 19.07. It should be present in OpenWrt 22.03.
It can be disabled moving a jumper on the motherboard or a patch can be applied during the compilation.
The patch is this one:
https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=2ad949b11dbaa4c634868d55a4452d5a558776bd
and its usage has to be documented on the website.
As discussed on the Element chat, the patch for the LibreRouter hardware watchdog is not present in OpenWrt 19.07. It should be present in OpenWrt 22.03. It can be disabled moving a jumper on the motherboard or a patch can be applied during the compilation. The patch is this one: https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=2ad949b11dbaa4c634868d55a4452d5a558776bd and its usage has to be documented on the website.