After a long and painful experience I now use ad-hoc INI format for very simple configuration files and XML for anything more complex. Yes, XML is verbose and

After a long and painful experience I now use ad-hoc INI format for very simple configuration files and XML for anything more complex. Yes, XML is verbose and complicated, but all other formats I tried, be it Json, YAML, Toml, for me they all have nasty gotchas and/or inconveniences.