> Deprecation of the old config system is tough as long as the new config > system is so slow. :-(
Anecdotally I have yet to experience any difference whatsoever. This may be due to the fact that I build using Nimble anyway, so the only point where I have to use config.nims/nim.cfg is to configure nimsuggest for editors - and in that case the cost of parsing the file is completely irrelevant I am also in favor of using config.nims everywhere
