Design flaws + future rewrite

[searchers/loaders](https://www.lua.org/manual/5.1/manual.html#pdf-package.loaders) cannot return a loader that `require` itself (require loop), which makes it impossible to run the lz.n loader and `after` hooks properly. A `require` wrapper like this might work: ```lua function require(modname) local mod, err = old_require(modname) if err == nil then return mod end if err ~= 'module not found ...' then return err end pack_name, dir = search_in_opt(modname) if pack_name == nil then return err end hook_before() -- assuming lz.n is using the default loader (packadd) require('lz.n').trigger_load(pack_name) hook_after() end ``` worth investigating is lz.n Handlers, haven't had time to dig into those but might help?