I remember quite a while ago someone on the fedi posted a link to a pretty sweet repo of occult files and books, and I didnt bookmark it >.<
The world's largest occult library has a public online archive | Boing Boing

Amsterdam’s Bibliotheca Philosophica Hermetica (AKA “The Ritman Library) houses more ths 25,000 occult texts, covering “Hermetics, Rosicrucians, Theosophy, alchemy, mysticism, Gno…

Boing Boing

@FiXato This wasnt the one I was referring to, but i'll keep this one in mind, thank you :D

The one i was thinking of kind of had an 'online forum' kind of UI to it. I remember it's color scheme being black/white/grey.

Super vague i know, but that's all i can remember about it 😅

Western Esoteric Texts

Esoteric and Occult texts at sacred-texts.com

@FiXato Nah, it wasnt Sacred Texts; i frequent that archive quite a bit 😄
@somarasu
please let me know when you do find it again :)