...that would be great for a homebrew campaign.
In Missions, a number of technical and biotech skills are not used actively with some exceptions like First Aid, Demolitions, Locklpicking and Disguise. Others like Computer, Electronic Warfare, and Software come into play for certain matrix actions. There is no provision in Missions for performing B&R on devices, vehicles, of augmentations. Characters with demolitions cannot "cook" their own explosives. Nor can a character with Biotech and Chemistry create or modify drugs/toxins. Thus many technical skills end up becoming little more than knowledge skills you pay active points for. Yeah not incredibly fond of that.
If this character were in a Hombrew she'd bee looking to make custom mods to her deck, even build her own. I remember back in the days the credo of any Decker worth his/her salt was, "never trust anyone else's tech except your own." I had two different Decker characters back then both who designed and built their own cyberdecks [I even wrote up an Excel Spreadsheet to crunch all the test numbers based on successes, time factor, component prices, and lifestyle costs] The second one, Violet, came up with a deck that was somewhere in between Renracku Kraftwerk and Novatech Slimcase for about the same cost as a prebuilt Kraftwerk).