You can create pieces of technology that can either amplify or dampen power. The limits on how much you can suppress or boost powers depend on the size of the tinker tech and how experienced you are, and the smaller your tech is, the smaller the range to the point where ring or necklace-sized pieces of technology require physical contact to work, but in exchange for this limitation, the smaller the piece of technology, the more powerful the boost or dampener is, and the maximum limit of your boosting is 1000% of the original power. At first, you will barely be able to create pieces of Tinker Tech that are able to boost or dampen parahuman powers by 10% and are roughly the same size as a portable gas generator.
And if you have negentropy, then your tech becomes capable of recharging and supercharging shards. Along with this, the boost your technology gives can reach over 1000%.