Setting up Minecraft for Speedrunning
Watch the following video to install and configure all of the necessary tools (Prism Launcher, Mod Checker, Ninjabrain Bot, Jingle).
Then create a separate instance for MCSR Ranked: https://wiki.mcsrranked.com/install/install_prism.
Ranked is the recommended way to practice, since the filtered seeds avoid dead runs caused by bad RNG or bad world generation.
Resources
Rekrap's YouTube Tutorials
Couriway's Metafy Guide
There's a free Metafy guide hosted by Couriway and written by many great speedrunners, but you need to sign up for an account to access the free content.
https://metafy.gg/guides/view/ultimate-minecraft-speedrun-guide-cIzfjeTmwOm

MCSR Wiki Bastion Routes
Linux
Read the Linux Guide for MCSR: https://its-saanvi.github.io/linux-mcsr/
