it’s the QUERY_STRING decoded if it’s a search-string (i.e. not a key-value pair.) It’s useful for scripts to avoid percent-decoding the querystring in the most common case of a query, because in Gemini querystrings key-value paired are not common. Idea from a discussion with Allen Sobot.

RFC3875 § 4.1.7 states that "the QUERY_STRING variable contains a URL-encoded search or parameter string".

this fixes a possible crash if `client_write' closes the connection, because client_close can end up freeing the fastcgi bufferevent while we're looping. We don't support fastcgi multiplexing, so once we get an END_REQUEST there's nothing more to do. Prodded into looking here after a bug report from Allen Sobot, thanks!

to connect to unix-domain sockets the `unix' pledge is needed and also unveil "w". gmid can't mutate files because it doesn't pledge `wpath' nor `cpath'.

breaks on some distro and needs further investigations; it's not that interesting fortunately.

undocumented flag to dump to stdout the request before doing it. Not useful, it's debugging leftover.