Meteor Astronomy is model layer for Meteor

PHP5 library that provides a filesystem abstraction layer − will be a feast for your files!

A layer on top of the Selenium browser automation library.

Modern OpenGL wrapper, thin C++14 header-only layer on top of the OpenGL 4.5+ API

UI Layer for lonelyplanet.com

A mapping layer for the OData gem that integrates with ActiveModel.

WFS Layer written in Javascript that runs on Node.JS

An physical layer LTE network simulator.

ruby persistence layer for CouchDB.

RobOptim Core Layer: interface and basic mathematical tools

A design-focused abstraction layer over Mithril

platform layer for node.js

generate model layer codes of your application for Parse.com

Simple MySQL Abstraction Layer and mysqli_ result wrapper