I love OriTech, the upgrade system is so much richier than Mekanism or other mods, BUT, still, the idea behind upgrades in general is that it should be more convenient to upgrade than simply spamming many machines instead.

At the moment this is not really the case for most machines, with a few exception.
In terms of resources and similarly in terms of space occupied it's more convenient for example to just spam 30 foundry with primitive machine cores than to upgrade a single one to shorten its operation time by 290 ticks.

The suggestion is to add a feature (toggable in config possibly) to make that the addons will be shareable between every machine which is attached to them, kinda like a shared multiblock.

Another request would be (I may be wrong but haven't find a way) to tweak the upgrade multipler curve, so that modpack creators can make the bonus more exponential or less exponential based on the number of addons that players may add.
being able to have a share-addons feature between every machine attached to 'the network' will be more than enough to make an organized base with OriTech.

Thanks in advance,
great job so far btw !

Thanks for the suggestion. I also thought about that but decided against it for now. Sharing addons, especially when extenders are involved, could become unintuitive quite fast. Currently the colors clearly state whether an addon is connected or now. If we allow multiple machines to connect to the same addons, it can become quite hard to understand which extender is in reach of which machine. Speed and processing addons can also become really strong really fast, so I don't see this as an issue.