I have slightly modified the code so that the dependency on default is optional.
Nonetheless trees from other games are not supported unless they register the trees to treecapitator, but the mod should, for example, work for trees from moretrees (if enabled) and ethereal now (now means the latest version from github).
I've added a few settings in the latest version. You can also edit the options list in init.lua to change many more configurations, such as the depth of the nether, the frequency of plants and the nether forest height.
I have used this mod for a long time and are still using it, but haven't kept a clean code. The tool is mainly for mod creators and people who want to see debug information. The name is not very important but I have kept it nonetheless for backwards compatibility (repository link in scripts and other places).
I doubt that people want to use this and other superpick mods at the same time because one tool which digs everything should usually be sufficient.