Official IC2 Classic Github Page. IC2Classic Bugtracker
If you want to access the IC2Classic Beta. Here you can get it.
Not bound to the beta.
IRC Channel: #IC2-Classic (in EsperNet)
Discord Channel: https://discord.gg/ySK5tzY
If you want to use IC2 Classic in your Modpack, i have nothing against that and permissions are given as long you do not break the IC2 Permissions.
IC2 Permission: http://forum.industrial-craft.net/index.php?page=Thread&threadID=344
$ claude mcp add IC2Classic \
-- python -m otcore.mcp_server <graph>