this is a render model fix for the villager and 2024.1 to 2025.1 forge 1.20.1 and 1.21.1 neo forge
you can now make your custom living entity villagers or witches that use the built in model's physically hold an item in their arms like the vannilla ones do.
their main hand is now designated as their arm's like it should be, they cannot hold two items like one in their off hand much like the vannila ones,
doesn't need to be manually enabled, just drop it in and it should work.
once placed in your plugins folder it will automatically include the hand renderer when you use the built in model for a villager or witch which will allow the villagers or witches to hold said items.
klemen has apeared to pick up the issue and has fixed it for 2025.2 however he might not make one for forge 1.20.1 therfore i might have make an update but until 2025.2 i made this fix. for you guys