I need help learning how to do the door clip in level 3 (electrical station) I've tried searching for tutorials on YouTube but I can't find any that explain how to do it. I want to get more into speedrunning this game and that would be an awesome skip to learn.

Note: I've already tried doing it myself, but I ended up wasting 30 minutes trying to clip through a door with no progress.

As a challenge I beat the game without using a flashlight and I thought it would be a fun for people to speedrun.

I want to get into speedrunning on my streams but I have an overlay that I don't know is allowed. I have a screenshot of it.