Hey Marc Andrew. Thanks for sharing this incredible resource!
May I suggest adding https://xlayers.app? xLayers is an online app for both designers and developers, that we hope, will allow them to collaborate and iterate over a design, bridging the gap between the two worlds.
The main purpose of xLayers is also to automate code generation –converting a SketchApp design into code– that developers can use as a skeleton or boilerplate for their development.
The project is fully open source and can be found on https://github.com/xlayers/xlayers