Apjjm and I actually (-but mostly him-) started working on an Amnesia speedrunning wiki page a long time ago. I have a few videos up on my youtube channel showing various tricks and explaining how to do them, and would be happy to make a few more. Perhaps it could be interesting to have a wiki-like page for Amnesia on speedrun.com?

To all new players stumbling upon this thread: Tera and I have started the wiki: https://amnesiaspeedrunning.fandom.com