An alternative to AIL created specifically to be used within hopper.lua (for -storage). Only has basic functionality and the api is (currently) unstable. It is performant (admins won't complain about it lagging the server), but mostly single-threaded (it transfers items slower than AIL, although still at a respectable speed).
If you wish to use this in a project either fork it or contact me for support. You could also just use hopper.lua which does have a stable api and uses this library under the hood.