Not sentimental but I just started commuting with it and I'm a first time commuter.
It has friction shifters. I have the rear derailleur working pretty good but I can't get the front derailleur working as I would like but it is functional.

My question is, what would it take to upgrade this guy to indexed based shifters; front and rear?
I'm mechanically inclined so I'm hoping I can take my time and find new/used parts and do the work myself.
Even if I get a new bike down the road, I'd still keep this one so I'm willing to make some investments.

Any help would be appreciated.