Is there any way to get the old-school W3C validator?

It appears the W3C validator has been updated to only support HTML5, and now throws a bunch of errors on pages that used to pass with flying colors.

Is there any way I can get my hands on the old one, or something similar? I looked around for alternatives but they all seem pretty bloated, none explicitly support old HTML, and not to mention none of them provide a simple web interface like W3C's.

I'm aware HTML4 validation may not mean much in 2023, but I am a man of tradition:

Thanks in advance for any pointers