Multiple wakeup pins - RI_UC and EXTI

I've been trying all day to get the toolchain working to compile the firmware. I can't seem to find a thread with instructions that actually work. I've tried the installer, manual install, everything. I've set environment variables to exactly what each guide says, but it never works properly. Commands not found, despite falling down a rabbit hole to find solutions for each message.

Is there a recent toolchain installer that just works? I get errors with this:

The installer fails at netbeans it seems, it's an unresolved issue.

Is it possible to find it already built somewhere for the electron? I can't figure this out. I'm tired of downloading programs from here and sourceforge.

I managed to get something to compile, but I can't find anything telling me what to do after you compile it locally. I have this:

I have found the build>target>main>platform-0-lto folder, but don't know what do do with it now. It doesn't match any of the other threads I've found, is this the compiled firmware?