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Exclude e4mc and e4mc-retro from modpacks#4117

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Exclude e4mc and e4mc-retro from modpacks#4117
Reycko wants to merge 1 commit into
itzg:masterfrom
Reycko:patch-1

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@Reycko

@Reycko Reycko commented Jun 20, 2026

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Both e4mc and e4mc-retro will crash the server if they are used. Some private modpacks may include them as well, this should avoid any issues with whoever accidentally includes them.

@itzg itzg left a comment

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Thanks. It would be great if you could add the equivalent slug IDs here

https://github.com/itzg/docker-minecraft-server/blob/master/files/cf-exclude-include.json

@Reycko

Reycko commented Jun 20, 2026

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Thanks. It would be great if you could add the equivalent slug IDs here

master/files/cf-exclude-include.json

Apologizes, I was gonna do it and completely forgot oops
I'll commit it in a second

@Reycko

Reycko commented Jun 20, 2026

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Apologies for the force pushes, I'm never using GitHub's UI to edit files again..

This should be good though, I also based it on the latest renovate commit.

@itzg

itzg commented Jun 21, 2026

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I hadn't heard of e4mc before. Now that I researched it I'm confused because it seems like something that would only work server side. Or is it only client side for people to "open to LAN"?

@itzg itzg changed the title fix(exclude): exclude e4mc and e4mc-retro from server mods Exclude e4mc and e4mc-retro from modpacks Jun 21, 2026
@Reycko

Reycko commented Jun 27, 2026

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I hadn't heard of e4mc before. Now that I researched it I'm confused because it seems like something that would only work server side. Or is it only client side for people to "open to LAN"?

Sorry for the very long reply time
The mod modifies the Open to LAN button to use a reverse proxy and sends you a tunnel link others can use to join, using it server-side seems to cause a crash and is otherwise not recommended

I tested:
e4mc-retro 1.1.0 on Forge 1.12.2: crash
e4mc 6.2.0 on Fabric 1.20.1: crash? (first launch caused an exception on the Netty thread, second launch did not cause any errors, although e4mc warns against using e4mc on dedicated servers)

@itzg

itzg commented Jun 27, 2026

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No problem at all. Thanks for the follow up.

I'm working on a vaguely similar capability and was curious if e4mc was going to be a "competitor" 😁

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