Sour Client 1.21.11
Fabric 1.21.11, modern Minecraft with Sour on top: every mod, every setting, the bundled performance pack, the launcher, and fixes.

Start here
New to Sour Client? These three cover almost every question.
Getting startedYour first launch, the in-game menus, the HUD editor, profiles and cosmetics on 1.21.11.12LauncherEvery page and setting in the Sour Client launcher, explained.14TroubleshootingCrashes, low FPS, sign-in trouble, missing features and where your files live.19
Mods
100 mods and 1,763 settings, grouped the way the in-game menu groups them. Every setting has its default value and what it does.
CombatCrosshair, hitboxes, keystrokes, CPS, armour and potion readouts, hit colour and the fight helpers.22HUDEvery on-screen readout: FPS, ping, coordinates, clock, tab, scoreboard, titles, notifications and more.21VisualsHow the world and your hands look: animations, item size and physics, water, fire, camera, name tags, particles and the menus.22WorldWaypoints, chunk borders, build limits, compass, TNT fuse timers, and changing the time and weather you see.8HypixelHypixel Utils, stats lookups, Urchin, Bed Wars team and upgrade widgets, Quick Play, LevelHead and the Hypixel helpers.3ChatThe chat itself: filters, nick hiding, macros, AutoGG and AutoTip.6ClientSounds and volumes, clips, screenshots, hit registration, Dynamic FPS and the other client-wide helpers.10Settings pageMenu scale, accent, input, performance tier, keybinds and the other client-wide options.8