Hi, Julian from NodeBB team here. Sorry to hear there are dependency issues, they're tricky to debug.
Can I get a full record of the WARN and ERR messages? From what I can see in the image above, both the emoji-android plugin and reactions plugin have already been updated so that they request the correct version as a peer dependency.

It's actually quite an old plugin. I can't promise any movement on this front but I do think Andrew (psychobunny) was working on something like this for core.