here's the guide:
Build and download

paste these commands

sudo apt-get install faust wait for it to do its thing

git clone --branch develop https://github.com/christophhart/HISE wait for it to clone it into your home directory

cd ~/HISE

git submodule update --init --recursive this installs Juce

cd ~/HISE/JUCE/extras/Projucer/Builds/LinuxMakefile

make CONFIG=Release this compiles JUCE so you can run hise

~/HISE/JUCE/extras/Projucer/Builds/LinuxMakefile/build/Projucer --resave "~/HISE/projects/standalone/HISE Standalone.jucer" Run this, it makes extra folders you need

nano ~/HISE/hi_backend/backend/ai_tools/RestServer.cpp Open this file, paste this in the file, after the #include statements.

"

#ifdef DELETE

#undef DELETE

#endif

"

And press ctrl+o, enter/return and ctrl+x and you'll be back in the main terminal.

cd ~/HISE/projects/standalone/Builds/LinuxMakefile paste this

and then this

make=CONFIG=Release -J4 ignore the pink warnings, they don't mean anything.

ls -l build/HISE test to see if it worked. if not, you get this?

ls: cannot access 'build/HISE': No such file or directory

LinuxMakefile$ cd ~/HISE/projects/standalone/Builds/LinuxMakefile

make CONFIG=Release run this. if it says something like "everything done," you've successfully made it.

find ~/HISE -name "HISE" -type f -executable run this to find hise

~/HISE/projects/standalone/Builds/LinuxMakefile/build$ cd LinuxMakefile/build run this and hise should open.

then, it's basically done, still with a tonne of errors but you can make it work.

heres the full posr: https://buymeacoffee.com/genghiskhan/guide-how-install-hise-x86-based-intel-amd-chromebook

Note: i have no idea what i'm doing, i just wanted to make cool vst's. tthe scriptnodes are cool. it reminds me of patcher or something. i mainly just wanna make cool effects with funny ui's.