This utility is for manual testing, not automated testing, so there's
no point in anyone building it as a side-effect.

Removing it should also flatten the dependency tree and allow more
parallel jobs (there's up to 18 seconds to gain!)

This won't help though.

Bump them from standalone-utils

Most of these are useless by themselves, so no need to keep them
after the build completes.

Add a standalone-utils .PHONY target to build all the rest before
Spidermonkey is done.

The should help with CI times... and I'll be able to see if the libs
are worth splitting out too.

utf-8 at start.

This may be the issue Keyop was seeing.

For Nightfox's use in DDMsgReader.

If you're writing, say, a message editor and you don't want to deal with
UTF-8 input at all, specify this mode flag to convert any translatable UTF-8
chars (that have CP437 equivalents) to CP437 chars. Non-translatable UTF-8
chars are just ignored (treated the same as a timeout/no-input).