Estonia’s success is not so much about ditching legacy technology as it is about shedding “legacy thinking”
This is the key. I think many people does not understand this or does not approve of this. By going digital (like e-governance), use of paper is avoided but the procedure remains same. Does it save time? Sure, it does. But the process remains tedious as ever.
You might want to check the desktop analysis in Coverity. It runs a complete analysis at the first time. But afterwards, it can run analysis on the changes - but against a version present on your build server. I had set this up for a code base in C (>100Kloc) and desktop analysis was fast enough.