This is a Fabric Minecraft mod that adds logic gates to the game. Logic gates are redstone components that can either output or not output redstone signal based on the redstone inputs. You can read more about logic gates and how they work here.
Logic gates act similarly to repeaters, except as opposed to having one input and output, they have multiple inputs and one output. A logic gate's redstone output depends on it's redstone inputs. Most logic gates featured in this mod have two inputs and one output. Such logic gates have one input on the opposite side of the output, and one input on the side. You can toggle the direction of the side inputs of logic gates by right clicking (using) them.
Known issues:
The "Data latch" component while it does work fine, technically isn't behaving exactly as it should be,
The visual look of logic gate items are very hard to see and differentiate in the inventory menu.
Here is a short video showing how some of the logic gates work: