Sure, but bad rules have led to bad consequences. That's why palisades and walls are useless: people just cram buildings, and then say that's how tactics are, as if it were the only way to do things (and as if the present way is not resulting in nonsense). As I've said, you could make ranged infantry fly, and have coherent tactics and balanced gameplay, but that's not what's stated as the vision for this game, and the people that stagnate the game because otherwise would get frustrated that their memorised build orders won't work anymore should know better.   I've only really played with the Spartans and the Athenians, because my intention is to review each civ and point out interesting historical stuff that could be added, and inaccurate stuff that should be changed (and I like to properly source every sentence, so it takes time going through many books). I've only done this with the Spartans for now, where I've mentioned that a stone theatre was a very late addition (Roman according to some, although it has Greek aesthetics), and it's not something "characteristic" of this civ anyway, maybe except for an early one for military festivals, as mentioned. The Athenian is certainly Roman.

I have 32 GB of RAM I used -j28 (usual value for 0ad in the past and building other AUR packages)   now i decreased to -j1. the same error occurs.    I suspect this is more of a dependency version issue than a RAM issue

I had a similar problem, it looks like building spidermonkey requires huge amount of RAM, and if you don't have enough of it some build process crash. If you are building with -jX (with X which works fine for 0ad and the other libraries), you may want to decrease X when running build-source-libs.sh , so there are less simultaneously build processes and maximum RAM usage decrease.

Could you attach mainlog.html (from the logs folder) with such artifact?

The build failure occured when running /libraries/build-source-libs.sh  It is at the checking stage. I am using the latest code from gitea main branch as of 6th September 13:40 UTC ```  0:03.59 checking for rustc... /usr/bin/rustc 0:03.59 checking for cargo... /usr/bin/cargo 0:03.63 checking rustc version... 1.98.1 0:03.65 checking cargo version... 1.98.1 0:03.67 checking for rust host triplet... 0:03.67 ERROR: Don't know how to translate x86_64-pc-linux-gnu for rustc *** Fix above errors and then restart with "./mach build" ERROR: SpiderMonkey build failed ``` Host OS: Arch Linux   I found some similar discussions about spidermonkey packages on the Gentoo forum https://bugs.gentoo.org/915651 hopefully it can be of help