Mod Thread: https://forums.factorio.com/viewtopic.php?f=190&t=78184
Factorissimo but instead of a factory warehouse it's a copy-paste circuit warehouse.
A composite combinator combined with combinations of combinators from a combinator combinator. Allows you to "enter" a special combinator to build a circuit network inside it, which is then deployed over this special combinator in the real world. This lets you seamlessly condense complex circuitry and signals into a single combinator. Blueprint Compatible.
This mod is perfectly efficient and optimized on performance because it literally uses tiny combinators, and the surface it creates when you enter it is only temporary while you build or edit them.
Chips are particularly useful for creating copies of circuits that are frequently used, as well as sharing circuits that you may need to make changes to.
The blueprinting and copy-paste features make it very simple to update your chips.
Building and editing is as simple as clicking on it to enter, and clicking a button to exit.
Note: Lua-driven combinators may not work inside these circuitissimo chips, but those mods will work just fine placed outside.