You are the first french gg !
Every run are interesting If you want a good tutorial, go in the portal speedrun discord (I don't have the link here), and go to the channel ressources, you will find a google docs with all you have to know inside of it.
Hi
I want to do some speedrun on portal OOB category, but I don't find any tutorial, do you know channels or videos to learn ?
Anto_Napo
Insane speedrun
I belive in you for the sub 5:00