V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):
NMU Non-Maintainer Upload (Linux, Debian)The Free On-line Dictionary of Computing (30 December 2018):
Non-Maintainer Upload NMU(NMU) A release of a Debian package by someone other than its usual maintainer. E.g. "The bug was fixed in a recent NMU." (2014-09-30)