My vimrc has let g:hdevtools_options = '--nostack'.
Yet still, I see huge blocking delays on startup, on :HdevtoolsInfo and also on exit.
During the hangs, I look at the process tree, and see hdevtools admin --status and hdevtools admin --stop-server running stack commands, which causes the long stack updates or whatever.
It'd be nice to have --nostack respected. Or at least have an indication of what's blocking my UI (as in #26).
This is all on Neovim, but I guess it doesn't matter much.