A very quick remake of https://www.curseforge.com/minecraft/mc-mods/auto-load-last-world.
Removed config (may re add if I can be bothered)
Simply reloads the last loaded world when hitting the main menu screen. To cancel hold ctrl+alt+shift just before the main menu would appear and it will cancel the automatic loading.
Is mainly intended for development environments but is also useful if you are one of the players that have one world per modpack
