A very clever idea. I love tile-based games, and this is certainly an original twist. Also, very nice color palette. Controls are responsive.
One issue: it is not clear what the different connections mean when looking at a hex. This should be communicated clearly so that we know instantly what tradeoffs we are making when we add that hex (e.g., processing power, cooling).
Also, the text when you mouse over a component is too small to read comfortably, and none of the words stand out. In addition to making all the text bigger, it would have been nice to bold or color certain words that are particularly significant.
Finally, the game eventually stopped letting me add components, but there was no message to let me know that the game was over. I don't know what I did to bring the game to a conclusion.