When a player digs part of a tree's stem, the whole tree is felled at once.
There are many settings, for example an option to control whether leaves are dropped, too, or only saplings, resembling leafdecay behaviour. Support for moretrees is disabled by default and can be enabled with a setting.
If players want to dig single trunk nodes instead of whole trees, they can hold the shift key. When felling a tree, neighbouring trees are detected and left unharmed.
It works well... but.
it works on minetest but since it relies on the "default" mod pack from minetest it won't work on games such as mineclone 2.
other than that it works as intended and I love it.