But why is it so big in the first place?

I was searching around for causes and came across the following issues: https://github.com/ziglang/zig/issues/15358 which was moved to https://codeberg.org/ziglang/zig/issues/30193

The following quotes stand out

> zig's caching system is designed explicitly so that garbage collection could happen in one process simultaneously while the cache is being used by another process.

> I just ran WizTree to find out why my disk was full, and the zig cache for one project alone was like 140 GB.

> not only the .zig-cache directory in my projects, but the global zig cache directory which is caching various dependencies: I'm finding each week I have to clear both caches to prevent run-away disk space

Like what's going on? This doesn't seem normal at all. I also read somewhere that zig stores every version of your binary as well? Can you shed some light on why it works like this in zigland?