There's an instant crash without a crash log being created when Trinket Compatibility Layer for Accessories is present alongside the Shappoli mod for Origins that adds Trinket integration for Origins, on 1.20.1, everything at their latest versions.

How to reproduce the crash: Have Trinket Compatibility Layer for Accessories and Shappoli and required dependencies installed, try launching the game. (EMI is not present at all in my mods, I only use REI for my Fabric installs.)

Removing either Shappoli or Trinket Compatibility Layer fixes the issue. Both launch fine otherwise.

Mentioned the issue on Shappoli's tracker as well, in case the incompatibility can be fixed on their side.

Crash from the normal log: (I'm having issues attaching the log, sorry for the copypaste)

[14:23:09] [main/WARN]: Error loading class: dev/emi/trinkets/SurvivalTrinketSlot (java.lang.ClassNotFoundException: dev/emi/trinkets/SurvivalTrinketSlot)
[14:23:09] [main/ERROR]: Minecraft has crashed!
net.fabricmc.loader.impl.FormattedException: java.lang.ExceptionInInitializerError
at net.fabricmc.loader.impl.FormattedException.ofLocalized(FormattedException.java:63) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:482) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) ~[fabric-loader-0.16.13.jar:?]
Caused by: java.lang.ExceptionInInitializerError
at net.minecraft.class_2966.method_17598(class_2966.java:139) ~[client-intermediary.jar:?]
at net.minecraft.client.main.Main.main(Main.java:169) ~[fabric-loader-0.16.13-1.20.1.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480) ~[fabric-loader-0.16.13.jar:?]
... 2 more
Caused by: java.lang.RuntimeException: Mixin transformation of net.minecraft.class_1723 failed
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:427) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:323) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:218) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) ~[fabric-loader-0.16.13.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]
at net.minecraft.class_5135.(class_5135.java:131) ~[client-intermediary.jar:?]
at net.minecraft.class_2966.method_17598(class_2966.java:139) ~[client-intermediary.jar:?]
at net.minecraft.client.main.Main.main(Main.java:169) ~[fabric-loader-0.16.13-1.20.1.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480) ~[fabric-loader-0.16.13.jar:?]
... 2 more
Caused by: org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:392) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:422) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:323) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:218) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) ~[fabric-loader-0.16.13.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]
at net.minecraft.class_5135.(class_5135.java:131) ~[client-intermediary.jar:?]
at net.minecraft.class_2966.method_17598(class_2966.java:139) ~[client-intermediary.jar:?]
at net.minecraft.client.main.Main.main(Main.java:169) ~[fabric-loader-0.16.13-1.20.1.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480) ~[fabric-loader-0.16.13.jar:?]
... 2 more
Caused by: org.spongepowered.asm.mixin.transformer.throwables.MixinPreProcessorException: Attach error for shappoli.mixins.json:integration.trinkets.PlayerScreenHandlerMixin from mod shappoli during activity: [Transform -> Method quickMove(Lnet/minecraft/class_1657;ILorg/spongepowered/asm/mixin/injection/callback/CallbackInfoReturnable;)V -> INVOKEVIRTUAL -> dev/emi/trinkets/SurvivalTrinketSlot::method_7681:()Z]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attach(MixinPreProcessorStandard.java:313) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.createContextFor(MixinPreProcessorStandard.java:277) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinInfo.createContextFor(MixinInfo.java:1292) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:203) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:437) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:418) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:422) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:323) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:218) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) ~[fabric-loader-0.16.13.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]
at net.minecraft.class_5135.(class_5135.java:131) ~[client-intermediary.jar:?]
at net.minecraft.class_2966.method_17598(class_2966.java:139) ~[client-intermediary.jar:?]
at net.minecraft.client.main.Main.main(Main.java:169) ~[fabric-loader-0.16.13-1.20.1.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480) ~[fabric-loader-0.16.13.jar:?]
... 2 more
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: dev.emi.trinkets.SurvivalTrinketSlot
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transformMemberReference(MixinPreProcessorStandard.java:791) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transformMethod(MixinPreProcessorStandard.java:777) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transform(MixinPreProcessorStandard.java:743) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attach(MixinPreProcessorStandard.java:307) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.createContextFor(MixinPreProcessorStandard.java:277) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinInfo.createContextFor(MixinInfo.java:1292) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:203) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:437) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:418) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:422) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:323) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:218) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) ~[fabric-loader-0.16.13.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]
at net.minecraft.class_5135.(class_5135.java:131) ~[client-intermediary.jar:?]
at net.minecraft.class_2966.method_17598(class_2966.java:139) ~[client-intermediary.jar:?]
at net.minecraft.client.main.Main.main(Main.java:169) ~[fabric-loader-0.16.13-1.20.1.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480) ~[fabric-loader-0.16.13.jar:?]
... 2 more
Caused by: java.lang.ClassNotFoundException: dev.emi.trinkets.SurvivalTrinketSlot
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transformMemberReference(MixinPreProcessorStandard.java:791) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transformMethod(MixinPreProcessorStandard.java:777) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transform(MixinPreProcessorStandard.java:743) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attach(MixinPreProcessorStandard.java:307) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.createContextFor(MixinPreProcessorStandard.java:277) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinInfo.createContextFor(MixinInfo.java:1292) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:203) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:437) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:418) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) ~[sponge-mixin-0.15.4+mixin.0.8.7.jar:0.15.4+mixin.0.8.7]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:422) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:323) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:218) ~[fabric-loader-0.16.13.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) ~[fabric-loader-0.16.13.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]
at net.minecraft.class_5135.(class_5135.java:131) ~[client-intermediary.jar:?]
at net.minecraft.class_2966.method_17598(class_2966.java:139) ~[client-intermediary.jar:?]
at net.minecraft.client.main.Main.main(Main.java:169) ~[fabric-loader-0.16.13-1.20.1.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480) ~[fabric-loader-0.16.13.jar:?]
... 2 more

Ah makes sense as some code was not fully copied in that version of the TCLayer and such is fixed in versions 1.21 and up. Currently all development on 1.20.1 has stopped and info on how I handle updating combined how I will maintain Accessories can be found here: https://github.com/wisp-forest/accessories/blob/1.21.x/info/INFO_ABOUT_UPDATES.md.

Sorry for the inconvenience.