Currently there is a TINY tech tree (for ex ample ya gotta develope small laseras before developping big lasers, etc.), but this is extremely "instantaenous" and simplistic. Just pay the credits and WHAM voilà
done! Now your crew instantly knows how to build the part!
It think it would be much more interesting if you have to progressively "learn" and "teach" your crew. You do research on bought blueprint for the part and then studying sveral of those parts (say, you need to do it say around 10 to 12 times) from damaged enemies, using a "Research Center" where your crew basically studies the not-too-damaged part (the more damaged it is, the less "research valuable" it is, and it ain't linear: 50% damage means much less than 50% of the full research possible. A 100% intact part would give a boost. This is a backwaredss engineering studying: the researched part is then destroyed and fully "used up". Do it enough times, and you "learn" how to manufacture the part.
You can also just buy the part from a station, let the station built it on your ship, the "backward engineer" your part means it gets destroyed, so that can be costly. You could even research parts without first buying the "blueprint" for it, but it would go much slower. Maybe think of the blueprints as each having some kind of progress bar.