What your project desperately needs is a description of what it does. I had to follow the links to ethical-tldr back to the original tldr to see what it's supposed to do.

This is an instance of that recurring trope of coding something better out of pure spite

So, I decided to learn C from scratch
...
on my own in just the past 3 days

Really impressive, great job! What resources did you use for learning?

This looks like a colossally bad idea:

  if (!strcmp(platform, "windows") && !isSpecificPlatform) {
    debugLog("Falling back to rm -rf", 2);
    debugLog(strfmt("rm -rf exited with code %d",system(strfmt("rm -rf %s", path))), 3);
  }

In addition,

However, their even though their client doesn’t allow vibe coding, it is still written in Python, which itself takes ai contributions.

Per the Makefile, this project is built using GCC. GCC itself accepts AI contributions, provided that the code is "legally insignificant" (meaning less than around 15 lines of code) or is part of test cases: https://gcc.gnu.org/ai-policy.html

https://github.com/tealdeer-rs/tealdeer Rust TLDR

So... C code is faster than python. We knew that. Thanks for the better performing rewrite. Now do it in rust 🤓

Consider using a different name for the project if you care for searchability. There's already Unicode CLDR Project.

You might want to have a glance at the OpenSSF compiler hardening guide, and maybe try out ASAN (-fsanitize=address).

E.g. I get

[nobody@bb14e99a9c8e cldr]$ ./build/cldr --update --language C.
caution: filename not matched:  ethical-tldr/pages.C./*/*.md

=================================================================
==454==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 4 byte(s) in 1 object(s) allocated from:
    #0 0x7fa48a32c0c1 in malloc (/usr/lib/libasan.so.8+0x12c0c1) (BuildId: b8a4241051a1621937fdc46e867ba7ecb56d96ea)
    #1 0x7fa489e8be0f  (/usr/lib/libc.so.6+0x8be0f) (BuildId: 503200d7fda94a5dc6058d7e0694e5d1dcb2e372)
    #2 0x7fa48a2f2761 in vasprintf (/usr/lib/libasan.so.8+0xf2761) (BuildId: b8a4241051a1621937fdc46e867ba7ecb56d96ea)
    #3 0x561d84213d8c in strfmt (/home/nobody/cldr/build/cldr+0x6d8c) (BuildId: 2a0f13efc2c9b12a67e7dd810a2cbdfd1866e53d)

SUMMARY: AddressSanitizer: 4 byte(s) leaked in 1 allocation(s).

I'm not sure why you did this when Tealdeer exists and has for years? https://github.com/tealdeer-rs/tealdeer

I wish people still had shame.

Python isn't for command line utilities that you intend to distribute to others. It's for personal one-off scripts.

I mean, FFS, if you're gonna vibecode something, why not pick a fast language? The fact that they can't even tell the LLM to use the right technology shows that they are a complete imbecile

Dependancies

[Optional] wget can be installed for less reliance on other projects using ai, if wget is not found, curl will be used instead

1. Small typo: dependencies.
2. Is curl using AI in its code now?

Thanks for your work!

Oh yeah this is bound to be maintained