config.yml:
Nexo
Fully automatic. Nexo offers a hook before it builds its pack, so LodeEntities hands its assets over and Nexo bundles them into its own build. Nothing else to do. Nexo items also work on mobs: putnexo:<id> in a mob’s equipment or an item mechanic, and a Nexo item can run /le spawn, spawnlook or spawnat to summon a mob.
ItemsAdder
Almost automatic, with one manual step because of how ItemsAdder works. ItemsAdder has no pre-build hook, so LodeEntities writes its assets into the folder ItemsAdder already merges from:/le reload. Because the files land in ItemsAdder’s own contents folder, run /iareload (or /iazip) afterwards so ItemsAdder rebuilds its pack and picks them up. The console confirms the write, for example Merged 5883 file(s) into ItemsAdder (lodeentities). Run /iareload to rebuild its pack.
The lodeentities folder inside ItemsAdder’s contents is managed by LodeEntities. It’s rewritten on every reload and stale models from an earlier build are cleared for you, so don’t hand-edit it.
Keeping the packs separate
Setmerge-with-external-resources: false and LodeEntities stops merging. You then serve its generated pack (plugins/LodeEntities/build.zip) yourself, the same as on a server with no other resource-pack plugin.