[lifthrasiir]

Any sufficiently complicated configuration language contains an ad hoc, informally-specified, bug-ridden, slow implementation of half of Common Lisp. [1]

[1] A variation of https://en.wikipedia.org/wiki/Greenspun%27s_tenth_rule

[CmonDev]

Isn't it ironic how they are used more than Lisp though? Maybe they don't implement that other, worse part?