This is a brief but mostly all encompassing guide on how to run Any% Endings 1 & 2. If you follow this video, you will be able to speedrun this game for yourself!
The above video demonstrates some current tech (Cruci-FIX, Pentagram Wham) but a video created by runner Vynnada demonstrates a fantastic strategy for combatting Miriam in the chapel. (See below)
I believe this strategy works in both the chapel and the area that Vynn demonstrates the tech in, so long as you hog the doors.
The below video is a series of tips, tricks and advice for running this game, too.
Please note that the ruleset was updated for this category. It requires both keystrokes and FPS counter to be visible during runs. This helps during verification. A Guide is up for anyone who wants any help on getting that running. If you notice you have FPS counter displayed in-game but it's not