I'm sure it'll be fine (no backport this ok thanks future me)

CHANGELOG.md

@@ -1,2 +1 @@
-- Fixed rotation not continuing to drift with a ui open.
-- Fixed some networking elements using the wrong protocol version, creating log warnings.
+- Fixed Iris compatibility. (in theory)

common/src/main/java/nl/enjarai/doabarrelroll/mixin/client/roll/GameRendererMixin.java

@@ -1,5 +1,7 @@
 package nl.enjarai.doabarrelroll.mixin.client.roll;
 
+import com.llamalad7.mixinextras.injector.wrapoperation.Operation;
+import com.llamalad7.mixinextras.injector.wrapoperation.WrapOperation;
 import net.minecraft.client.render.Camera;
 import net.minecraft.client.render.GameRenderer;
 import nl.enjarai.doabarrelroll.api.RollCamera;
@@ -9,23 +11,26 @@
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;
 import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Redirect;
 
-@Mixin(GameRenderer.class)
+@Mixin(value = GameRenderer.class, priority = 900)
 public abstract class GameRendererMixin {
     @Shadow @Final private Camera camera;
 
-    @Redirect(
+    @WrapOperation(
             method = "renderWorld",
             at = @At(
                     value = "INVOKE",
                     target = "Lorg/joml/Matrix4f;rotationXYZ(FFF)Lorg/joml/Matrix4f;",
                     ordinal = 0
             )
     )
-    public Matrix4f doABarrelRoll$renderWorld(Matrix4f instance, float angleX, float angleY, float angleZ) {
-        return instance.rotateZ((float) (((RollCamera) camera).doABarrelRoll$getRoll() * MagicNumbers.TORAD))
-                .rotateX(angleX)
-                .rotateY(angleY);
+    public Matrix4f doABarrelRoll$renderWorld(Matrix4f instance, float angleX, float angleY, float angleZ, Operation<Matrix4f> original) {
+        var roll = ((RollCamera) camera).doABarrelRoll$getRoll() * MagicNumbers.TORAD;
+        if (roll != 0) {
+            return instance.rotateZ((float) roll)
+                    .rotateX(angleX)
+                    .rotateY(angleY);
+        }
+        return original.call(instance, angleX, angleY, angleZ);
     }
 }

fabric/src/main/java/nl/enjarai/doabarrelroll/DABRMixinCanceller.java

@@ -2,21 +2,23 @@
 
 import com.bawnorton.mixinsquared.api.MixinCanceller;
 import com.bawnorton.mixinsquared.tools.MixinAnnotationReader;
+import net.fabricmc.loader.api.FabricLoader;
 
 import java.util.List;
 
 public class DABRMixinCanceller implements MixinCanceller {
+//    public static final String GAME_RENDERER_CLASSNAME = FabricLoader.getInstance().getMappingResolver()
+//                .mapClassName("intermediary", "net.minecraft.class_757").replace('.', '/');
+
     @Override
     public boolean shouldCancel(List<String> targetClassNames, String mixinClassName) {
         if (mixinClassName.equals("com.anthonyhilyard.equipmentcompare.mixin.KeyMappingMixin") && MixinAnnotationReader.getPriority(mixinClassName) == 1000) {
             DoABarrelRoll.LOGGER.warn("Equipment Compare detected, disabling their overly invasive keybinding mixin. Report any relevant issues to them.");
             DoABarrelRoll.LOGGER.warn("If the author of Equipment Compare is reading this: see #31 on your github. Once the issue is resolved, you can set the priority of this mixin to anything other than 1000 to stop it being disabled.");
             return true;
         }
-//        if (mixinClassName.equals("me.fzzyhmstrs.keybind_fix.mixins.KeybindingMixin") && MixinAnnotationReader.getPriority(mixinClassName) == 1000) {
-//            DoABarrelRoll.LOGGER.warn("Keybind Fix detected, disabling their overly invasive keybinding mixin (Ironic, I know). Report any relevant issues to them.");
-//            DoABarrelRoll.LOGGER.warn("If the author of Keybind Fix is reading this: please don't use unconditionally cancelled injects... try looking into MixinExtras! Once the issue is resolved, you can set the priority of this mixin to anything other than 1000 to stop it being disabled.");
-//            return true;
+//        if (targetClassNames.contains(GAME_RENDERER_CLASSNAME) && !mixinClassName.contains("doabarrelroll")) {
+//            DoABarrelRoll.LOGGER.warn("Found mixin targeting GameRenderer. If this is done to modify matrices, it might create incompatibilities. Mixin classname: {}", mixinClassName);
 //        }
         return false;
     }

gradle.properties

@@ -3,7 +3,7 @@ org.gradle.jvmargs=-Xmx3G
 org.gradle.daemon=false
 
 # Project
-mod_version=3.5.7
+mod_version=3.5.8
 group=nl.enjarai
 
 # Common