Build Failiure

[Merlinux-source]

Hello there,
I tried building it on Linux Manjaro, and it failed on multiple attempts.
i tried just using the instructions wich failed error:
bash: gulp: command not found
So I installed gulp, then i tried to re run the gulp commands the first one errord with this message:
https://pastebin.com/qgWDmAXB

At that point i thought, maby i could run it without building it, so i tried npm start wich error was:

https://pastebin.com/qL0BLrTL

Here is the log: https://pastebin.com/qZur2xmw
I'm willing to provide more information if i forgot something, Thanks for your help in advance.
I Would love to see more building instructions, or an build for linux.