Sculptory

The first NeoForge release, a beta. Minecraft 1.21.1 with NeoForge 21.1.218 or newer; the jar is sculptory-neoforge-0.5.0-beta+1.21.1.jar. Network protocol 6.

• The whole editor on NeoForge: every tool, window and key of the Fabric mod, in singleplayer and on servers. Nothing else to install.
• Fabric and NeoForge work together: a Fabric client can edit on a NeoForge server and the other way round, as long as both speak the same protocol.
• Permissions through NeoForge's permission system: the same sculptory.* nodes, operators by default, LuckPerms when installed (its 5.4.150 build; the build labelled for 1.21.1 kicks every player at login on current NeoForge 21.1).
• Next to Cobblemon, Create and JEI: no conflicts, and their blocks fill, undo and redo like vanilla ones. One limit: while builder mode acts for you, it takes a right-click with a block item before a mod's placement helper (Create's belts and shafts) would; switch every power off, Record included, to place those the mod's way.
• Record, as on Fabric (see Fabric 0.5.0-beta, "New"), on NeoForge clients and servers alike.