There are DoJ leaks on here and if you search DOJRP EUP Leak on google you will find their EUP, the EUP that was leaked was from Server X when ghost was still in the community
DOJ uses C# for most resources (apart from third-party ones) and with this type of leak it only gets the client scripts, not the server side ones meaning a lot of stuff will not work unless a DoJ dev that is a FiveM dev (devs are limited to their project repos only so a portal dev can't see the fivem-scripts repo and the same the other way) leaks the repo or complied code and I don't see that happening anytime soon