There is JS/TS in the codebase, but a surprisingly large fraction of the UI manipulation logic doesn't bear resemblance to either. I base my opinion on my own

There is JS/TS in the codebase, but a surprisingly large fraction of the UI manipulation logic doesn't bear resemblance to either. I base my opinion on my own interpretation: for me modern React looks a lot like the offspring of QML and a flavour of Lisp.